Review of DriveThruCards.com

TLDR:  The cards from DriveThruCards.com (DTC) arrived yesterday and I couldn’t be happier with the result.  Great customer service, product, and value.

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  1. Shipping:  Great
    1. 3/19/2024:  I ordered 120 cards around 2 AM PST in California.
    2. 3/19/2024:  The DTC website was updated with the following statuses:  Pending Payment Approval, Paid For, Sent to printer, Confirmed.
    3. 3/24/2024:  I received a shipping confirmation email from DTC in Overland Park, Kansas with a USPS tracking number at about 4:32 PM PST.
    4. 03/25/2024:  The date on the “External Packing Slip” included with the box.
    5. 3/28/2024:  USPS sent me a notification the package arrived around 8:29 AM PST.
    6. This was basically exactly as long as my Reddit lurking had suggested (about 10 days) it would take.

      Order confirmation and status screen

      Order confirmation and status screen

  2. Packaging:  Great
    1. The cards arrived wrapped in a cellophane band, within packing paper, inside a small box (about 5″x5″x3.5″ cube).  This was perfectly fine for these cards.  They have options for tuck boxes and other containers, but I didn’t need or want these for this project.
  3. Card Quality:  Great
    1. Text and images were sharp, legible, and colors rich but slightly darker than what I saw on my computer screen.  By tinkering with Inkscape, I would guesstimate the final card was about 5-10% less bright than what I saw on my screen.  Without comparing the cards directly against a large bright monitor, I don’t think I would have noticed this difference.
    2. When I set the deck down on a flat surface and run my finger over the side of the stack of cards, there’s a very slight variation over a few cards.  It’s barely perceptible and probably totally fine for any kind of card usage or card game except a super precise cut for casino playing cards.
    3. When the cards are viewed edge-on in a stack, you can tell see a faint bit of the card’s edge color.  I grabbed some “Magic: the Gathering” cards and looked at a mix of black and white bordered cards and noticed that even the black border cards seem to look white-ish when viewed edge on.  The slight bit of color here doesn’t bother me at all and for most purposes would be totally irrelevant.
    4. The cards were 2.503″ or 63.57 mm wide and 3.506″ or 89.05 mm tall, or about 0.2% large.  Some variation is to be expected in any order and this miniscule variation would be completely unnoticeable except I used digital calipers to measure them.
    5. The cards, printed on DTC’s “premium stock,” advertised as 11.4 pt (0.0114″) were 0.0115″ or 0.29 mm thick.  Flicking the cards against a table, right next to an actual casino poker card, they felt identical.  (The casino card has a slightly raised texture, but the flex, bounce, and flick of the card stock felt identical).
    6. Card Cut.  This is the one aspect that didn’t come out exactly as I had planned.  Ten of the cards I printed had borders, but they were visibly different widths at each end.  These cards were Premium U.S. Poker sized (2.5″ x 3.5″), the PDF itself was 2.75″ x 3.75″ (to account for the 1/8″ bleed area at each edge).  Unfortunately, I didn’t notice this until after I had used the cards a bit, so I don’t know whether top or the bottom was slightly thinner.  Since these cards are basically dividers, this isn’t a huge deal for me.  However, I’d prefer being able to get them back with an even border all the way around.

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  4. Customer Service:  I discussed the responsiveness of the DTC customer service team in the prior post.  They went out of their way to help me with my project – and it really smoothed things for me.

I simply could not be happier with these cards.  I will absolutely be trying them again.

Print On Demand Custom Cards
  1. Custom Cards with DriveThruCards.com
  2. Review of DriveThruCards.com

Custom Cards with DriveThruCards.com

I’ve been looking to get some playing sized cards for various purposes recently.  I’ve enjoyed making my own cards from blanks ordered off of Amazon, but for things that might get used a little more regularly, it would actually help to have these things pre-typed/printed.  And, as a long-time / returning enthusiast of a particular card card game, I was also looking to print up some proxy cards for casual play.  I don’t want counterfeit cards – just make some obviously unofficial stand-ins for real cards in casual play.

  1. Cost Breakdown
    1. If you do any kind of Googling about searching for a company to print up cards of various sizes, you’ll quickly end up at MakePlayingCards.com – or a company that has a website that looks nearly identical to MPC.  Getting a single deck of custom cards printed up through MPC is $26.15 for up to 108 cards (they offer incremental price breaks) plus $11.99 shipping (with tracking taking about 20 days) as the cheapest option, coming to $40.17 (including some tax).  This is roughly $0.37/card.
    2. Lurking in some Reddit forums, I found a few suggestions on different ways to create proxy Magic: the Gathering cards.  These forums renewed my interest in getting some cards printed up – and lead me to DriveThruCards.com.  I just placed an order for 120 cards,1 but I’ll describe the cost for 108 cards for an apples-to-apples comparison.  A single deck of custom cards printed through DTC is $12.42, plus $5.99 shipping (USPS Ground Advantage and anecdotal evidence from Reddit suggests ~10 days), plus  $1.00 in tax, comes to $19.41.  This is roughly $0.18/card.
  2. Benefits / Costs
    1. There’s no question the MPC website is cleaner and slicker, featuring drag and drop options, without a lot of technical jargon about printing, colors, etc.  They also seem to have many more options for card sizes, materials, and finishes.  They also have lots of templates in various formats to download and populate.  The obvious downsides are the length of shipping required and the cost, both estimated to be roughly twice that of DTC which is apparently in Overland, Kansas.
    2. The DTC website is… by their own admission, “challenging to learn.”  While I’m sure the interface permits a ton of customization, the dizzying array of options is daunting.  They have lots of guides on their website and knowledge base, as well as elsewhere, but it’s probably too much information.  I went with DTC for my first custom card order because I wanted to inexpensively try out some ideas and I figured that after the first order, I’d probably get the hang of their system.  However, one thing that really sets DTC apart is the responsiveness of their customer service.  I’d emailed them in the middle the day and middle of the night (aka goblin hours) and someone always back to me super fast.  Although DTC doesn’t have official PDF templates, Brian with DTC kindly whipped one up and emailed it to me which answered tons of my questions.
  3. Anatomy of a Printed Card
    1. Both MPC, DTC, and other print-on-demand (POD) websites have numerous descriptions, graphics, tutorials, and samples all using slightly different words, relating to the various sizes, printing zones, etc.  I found it incredibly confusing.  Now, I’m not certain I’ve gotten everything right, but here’s my best understanding…
      Annotated sample poker card

      Annotated sample poker card

      1. Cut Line / Trim Line / Bleed Line.
        1. The area described by the solid black line will be where the card is trimmed to the exact dimensions of the card.  The good thing about knowing what this line means is that if you know the final dimensions of your type of card, this is easy to look up and then design everything else around it.
        2. Importantly, you don’t want to include this line in your designs.  The purpose of the “safe” zone area is so the critical components of your design are certain to appear on the final product – even if it is perhaps slightly offcut.  The purpose of the “bleed” zone is to make sure a “full art” card doesn’t have bits of white or black at the edge if it is very slightly miscut.
      2. Safe Area Line / Border.  The important part to know here is that the distance from the “cut line” to the safe area is 1/8″ or 3.175 mm on all sides.  Thus, if you know the dimensions of the card you want, you just make sure your critical art and text don’t exceed this area.  All the area inside the safe area line is the “safe zone.”
      3. Bleed Box / Bleed Area / “Full Bleed” / Page Size.  As with the Safe Area Line, this is easy to figure out – it’s just 1/8″ or 3.175 mm outside the edges of the cut line.  This should be a rectangle.
  4. Software / Design Process
    1. I don’t have Adobe InDesign, Photoshop, Illustrator, or Affinity Publisher – and I wasn’t going to buy / subscribe to any of these just for this one project.  What I do have, however, is OpenSCAD and Inkscape.  Using OpenSCAD I started with a rectangle of the precise dimensions to match the exterior of the “US poker” card I wanted printed, then exported this to an SVG file.  I then did this for a rectangle of the “bleed box” size, safe line, and also the trim line.  I then imported all of these into Inkscape, layered them, and used them as guides while I designed my cards.  I made sure the critical areas were within the safe line, but made the safe line, trim line, etc all invisible.  Inkscape will allow you to export a file into a PDF file format which DTC accepts.  I created fronts and backs for cards, each exported as a separate PDF, then combined all of them using one of my favorite pieces of freeware, PDFTK.
  5. Potential Issues, Fixes
    1. Unembedded Fonts.  Apparently Inkscape did not embed all of the fonts used in the creation of the PDF.  When I tried to upload the PDF originally, DTC’s uploader balked at this and said I’d need to embed the fonts.  While I used a different PDF program (Foxit PDF is reasonably full featured and way less expensive than Adobe) to embed the fonts, I think I could have simply re-exported all the card faces as images instead of PDFs, then combined those into a new PDF which just had pictures (including pictures of the desired text).  It might have been possible to change the fonts as well to be more uniform, but given the number of cards I was creating, I didn’t want to do that.
    2. Currency.  I’m putting this here more for me than anyone else who might stop by.  At some point while using their website I accidentally did something which made all the prices and calculations appear in the Japanese Yen.  :/  I’d been through the account settings numerous times and even cleared my cookies and website cache trying to fix this problem.  After an embarrassingly long time, I gave up and emailed Brian to ask for help.  As so often happens to me… moments after hitting send I saw website footer had a drop down box to choose the currency and language.  Sorry Brian!

So, what’s next?  Well, after placing the order at roughly 2am PST on 3/19/2024, now it’s time to just wait and find out if the cards are going to get produced and arrive!  It’s now almost 6 pm PST, and their Order History page says “Sent to printer.”  Some Reddit posts suggest that it takes another 1-2 weeks to actually ship.

Print On Demand Custom Cards
  1. Custom Cards with DriveThruCards.com
  2. Review of DriveThruCards.com
  1. $20.86, if you’re being nosy []

Beep Boop: Emotions for ED-E

So I’m trying to program emotions for ED-E.

Better ed-e dialogue at Fallout New Vegas - mods and community

In Fallout New Vegas, ED-E doesn’t use regular dialogue, but communicates through beeps. Basically, he gets <(Emotion) + beeping> as his dialogue. Obviously the only way to research his beeping for this project is to replay Fallout New Vegas and talk to everyone’s favorite eyebot. I came up with a list of some of the emotional beeps he has in the game (and some that I just want) to start programming into him. I have ideas for what I want him to sound like, but I just need to find the right pitches and durations.

By this I mean I am sitting in my room and saying “beep beep” to myself at different pitches in sync with a program I wrote.

Yesterday my dad was checking in on me and how my programming was going and asked how I was doing. I replied, approximately, “bleurrrrghhhhh.”
I was having trouble programming the emotional beeps because I have very specific ideas for what ED-E should sound like and no way to get that into a computer. I’m a huge music nerd, but I unfortunately don’t have perfect pitch or some superhuman ability like that to use to get ED-E to sound exactly like I want him to.1 Dad suggested using a loop with an array going up every time, which made everything so. Much. Easier.
This plays frequencies starting at 100hz and going up by 10hz every time. I started with 100hz but going up by 50hz every time, but I liked the specificity of 10hz. Once I get in the ballpark of where I want to be, I can then just run the program and correct the pitches if need be.
If you read my last post, specifically the spoiler section, you will know why I started with a shy beep. If you didn’t read my last post, go do that! If you didn’t read the spoiler section, that’s fine. What you really need to know is that I want ED-E to make noises.
I’ll admit, this took a while to get right. Not playing the tones or even figuring out what pitches they were or how long they should play for. No, getting the tones to play was easy. Getting them to stop… was much harder.
ED-E was shyly screaming at me on repeat for at least 10 minutes while I was slowly losing my mind and trying to make him shut up.
I turned to ChatGPT to help me fix this, but it was utterly unhelpful and I ended up fixing the problem myself by deleting a bunch of the garbage it generated. Now the problem was that I had to continually upload the code to make the ShyBeep function run again. I was happy that it wasn’t looping anymore, but I wanted to fine tune the beeps and making it upload again and again was a pain. That’s why I decided to make it run when a button is pressed.2
It took a little while to make it run when a button was pressed, but then it would only run once and never again, even if the button was pressed. I finally realized that this was happening because runOnce was set to false, and fixed that.
Now that I have this framework, it has been much easier to program more beeps. Now I have a sad beep, and I’m going to start working on a happy beep because I have had just about enough of ED-E’s negativity.3
  1. I almost decided to use the definitions of pitch from my Rickroll code so I could just ask the computer to start at middle C and go down or say I want the pitch to be a half note in 3/4 time. I then realized I was making this WAY more complicated than it needed to be and just used seconds and hz like a normal-ish person []
  2. I seriously love Circuit Playgrounds. They have everything. []
  3. Just kidding ED-E, I love you []

ED-E Project: Origins

Hi, I’m DexterStarfighter, offspring of MakerBlock.1 I am a maker and artist with possibly too many interests that include drawing, writing, cats, theatre, video games, horror podcasts, folklore, coding, Jenga, history, triangles, succulents, and reading literally anything. I have been going to MakerFaire for basically my entire life and it has always been something I look forward to for the whole year. As soon as Dad told me MakerFaire was coming back, I knew I had to make something super cool for the occasion. This brings me to my latest project, a companion robot.

First, some background. My favorite game is part of the Fallout series (New Vegas, if you were wondering). I started the Fallout series because my dad played them when the first Fallout came out and I wanted to be able to share a cool game with him. I started Fallout 1 and loved it, then played Fallout 2 and 3. Over the summer, Epic Games released Fallout New Vegas with all DLCs for free and of course, I played the crap out of that.23

In Fallout New Vegas, there are various companions you can take with you on your journey through the Wasteland. There are human companions of course (and ghoul and nightkin), but you can also take with you one nonhuman companion. At first I was super disappointed that I couldn’t find Dogmeat. I don’t actually like being around dogs in real life, but I got Dogmeat in Fallout 1 and somehow I have become very attached. (I do not even want to think about how many times I have reloaded a save to keep that little jerk alive.) I quickly got over my disappointment though, because there is a statue of a dinosaur and now I’m disappointed that you can’t have a dinosaur robot companion. Anyway, in my travels through the Mojave, I found two interesting nonhuman companions. The first one I found was this little eye bot named ED-E. I play as a charismatic nerd (high INT and CHA with good repair, speech, barter and science) so I was able to fix him up. ED-E was still only able to beep in ways I couldn’t understand and when I brought him to where I was supposed to for his quest, there was some sort of glitch and I couldn’t interact with the lady for the quest. ED-E seemed kind of lame to me then, so I took him back to the place I found him and left. I later ran into a dog named Rex who I had to take care of for an Elvis impersonator (no, really) and found he was a pretty good companion.

Flash forward to the endgame. I had met a cowboy robot, climbed a dinosaur statue, resurrected a B-29, fought a soldier for a dog’s brain, charmed a scientist, accidentally sided with the mafia, cleaned out an entire casino, assassinated a 261-year-old man, had my vital organs removed, stolen 27 bars of gold, befriended a man wrapped in toilet paper, and was well on my way to conquering New Vegas for myself. I had only one more thing to check off my list: walking the Courier’s Mile. Don’t worry, I won’t spoil the Lonesome Road quest for you- I’ll just tell you that I met ED-E again. Somehow, within the first few minutes of interacting with him, I had become so completely charmed by this little robot that I would do literally anything to protect him. I’m not sure what about ED-E made him so endearing to me, but he became my best friend. 

GameBanshee

In 2019, I met Odd_Jayy at MakerFaire. I remember seeing his spider bot and thinking how cool it was. I’ve always liked the idea of a companion bot, but I’ve never actually had a specific idea of what I want out of one. When dad told me that we would be going to MakerFaire again, I immediately thought of an ED-E companion bot.4 Dad loved the idea too and gave me lots of good tips on how to get started. I have a tendency to get lost in the details, so he helped me focus on the big picture and the first steps I could take to achieving my goals.

I have a lot of ideas about what I want ED-E to do eventually, but I’m a complete beginner at Arduino programming. Knowing this, Dad suggested starting small. First, turn on one light. Then multiple lights. Then make them flash. Then make them change colors. Then add beeps. Stuff like that. I was like “cool, cool” and immediately programmed ED-E to beep the entirety of Never Gonna Give You Up instead of doing literally anything sensible.

I regret nothing. It was frustrating at first because I was super out of my depth. I used Chlorondria’s arrangement of Never Gonna Give You Up and used ChatGPT to help me learn how the code works. ChatGPT was super helpful because I could get feedback on why my code wasn’t working. The sense of accomplishment when I finally recognized the tune made all the frustration so incredibly worth it.

After my self-indulgent first project for ED-E, I moved on to taking Dad’s suggestions. Sort of. I’m a teenager, and therefore I am legally obliged not to listen to any authority figures, real or perceived. I made ED-E flash some rainbow lights. I started with just red lights and it took a while to make the code work, but once I made it work, I just changed the color brightnesses. Fun fact: my ED-E bot now actually glows two shades of blue in his rainbow light show pattern. For some reason I decided RGB stood for Red Yellow Blue and messed up with the color values when I was trying to make green and accidentally made a light blue. The light blue actually looked pretty cool, so I decided to keep it.

Today, I worked more on5 ED-E’s… musical function. I’m going to warn you right now: there will be spoilers for MakerFaire below! I intend to take ED-E to MakerFaire with me, and if you meet him, there will be some fun surprises in store for you. Not if you read the spoilers, though. MakerFaire is a big place and I don’t expect everyone who visits this page to run into me at the Faire, so I’ll include some stuff about the surprises below. 

***SPOILERS START***

 

If you’re still here, I assume you want to read this. One of my favorite things about ED-E in Fallout are the little conversations you can have with him. I want to be able to have a few little “conversations” with my companion bot, kind of like in the game. I’m going to have a Pip-Boy with various buttons to run functions for ED-E, but one of the first conversations I thought of had to do with his musical function. This was my idea:

 

Me: Hey, ED-E. Do you wanna sing them your favorite song?

ED-E: [Shy beeping]

Me: Aw, are you shy?

ED-E: [Shy beeping]

Me: Come on, ED-E. We’d all really like to hear you sing!

ED-E: [Questioning beeping]

Me: Yes, of course! Listen, I’ll ask them. Do you want to hear ED-E sing his favorite song?

Other person: Yes!

Me: See, ED-E? 

ED-E: [Pleased beeps, wait, then Rickroll beeps]

 

Obviously, I’m not going to make ED-E understand my words and respond to them. ED-E will be a shoulder mounted bot, so I want to be able to have conversations that trigger based on movement. I’m using a Circuit Playground, so I intend to take full advantage of all the different sensors it has. I programmed ED-E to run his Rickroll function if he senses a significant change in acceleration. I’ll pop my shoulder like I’m giving him a nudge, triggering the function. He waits for 8 seconds to give me time to talk, then plays the Rickroll beeps.

I have to admit, this took a WHILE to get right. It was still incredibly satisfying to see it all come together and go right. I was so excited when it started working! I did a lot of testing to get the sensitivity right because I don’t want it to trigger if I’m just walking around. I’m still fine tuning that part because I bumped the cord earlier and he started Rickrolling me. Then again, maybe ED-E just has a funny sense of humor.

 

***SPOILERS END***

So, what’s next for ED-E? I think the next thing I want to work on is getting his beeps right. I can make him beep music, and that’s great, but I also want to have him beep every so often and have “conversations” with him. I’m going to program some little beep clips for different emotions or situations that I can then mix and match into various conversations. I might also actually listen to Dad for once and work on a light show.

Thanks for reading about my ED-E project! I’ve enjoyed working on him and I’m so excited to share him with other makers. I’ll try to post updates regularly (they shouldn’t be as long as this one since you won’t need all the background next time). Thank you to Odd_Jayy for the inspiration, Chlorondria for the musical arrangement, ChatGPT for the troubleshooting help, Adafruit for making awesome boards, whoever made Fallout New Vegas, MakerBlock for being a great dad and helpful sounding board, and to you for reading this post.

ED-E Companion Bot Project

  1. ED-E Project: Origins
  2. Beep Boop: Emotions for ED-E

  1. I considered saying progeny and descendant of the House of MakerBlock, but offspring sounded the best. Progeny sounded weird and the descendant thing reminded me of Game of Thrones, which I have not read or watched, but I might someday and I don’t want to invite spoilers. []
  2. I love Epic Games. Free games every week? Yes please! Disclaimer: I am not being sponsored by Epic Games, but if I was, that would be awesome. []
  3. New Vegas is best Fallout, you can fight me on this. []
  4. I also considered a Muggy companion bot. I love Muggy and if ED-E turns out well, Muggy might be my next project. []
  5. Lol, moron []

Carved Eraser Stamping

I recently stumbled across the world of fantastically charming mini prints and carved erasers by Serena Rios McRae aka Cactus Clouds Art.  This short Instagram post provides an excellent overview of her process.

Serena’s artwork is evocative, accessible, and affordable.  I bought several of her prints the other day.  She also posts how-to’s on YouTube and provides plenty of links to her recommended supplies (Serena’s lists and affiliate links).

These looked like so much fun, I bought a pile of cheap pink erasers off Amazon, repurposed an old set of stamp carvers we had lying around (I had done some linoleum block printing back in high school and my wife had a small stamp making kit from years before), and gave it a shot.  The kids had a great time with this while I fretted about whether they were going to jab their fingers and how many bandaids I’d have to have handy.

After their first stamp, I hacked together a 3D printed holder.  Despite measuring the erasers carefully, it was too long and really, too big for what it needed to be.  Here you can see version 01 taped to a piece of mahogany wood left over from my ukulele project.

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There were several problems with this first attempt.  The holder was a little too long, so the eraser would shift back and forth.  It was also much bigger than necessary.  I designed it with those large fins on the side to make it easy to tape down, but it really wasn’t necessary and just made rotating the eraser holder a little more unwieldy.  While my kids were carving things using this holder, I went to work printing a few accessories.

3D printed screw top blade container, extra blade handle

3D printed screw top blade container, extra blade handle

The blades came in a little plastic baggie, so I printed a bespoke screw top container for them so they can be stored securely.  I also printed another blade handle so that two people could carve stamps at the same time – one using the original wooden holder and the other using the printed holder.

The next version was more compact and had dimples on the edges which I hoped would make it easier to hold.  I also added some little ridges inside so the eraser wouldn’t fall through.  Here they are:

Eraser holders for carving, versions 1, 2, 3, 4, and 5

Eraser holders for carving, versions 1, 2, 3, 4, and 5

The dimples didn’t work.  They weren’t deep enough and my hand couldn’t really grip it very well to keep it from moving while I was carving.  The area for the eraser was a little too long.  Versions 2-5 involved tuning the length just right.  Each one takes about an hour to print and used about $0.30 of plastic.  The final result fit the erasers like a glove.  They nestle in the holder perfectly and are easy to poke out using the little hole.  Admittedly, they might only fit the specific cheap erasers I found.

Here’s my process:

I created a page of eraser templates, which match the length and width of the large and small edges.  Of course, the long section matches the long side of the eraser – but the shorter section only matches the short side of the eraser if you tip it over.

Eraser templates

Eraser templates

I got to use several iterations of the eraser holder for this next section:

All the pieces, laid out nice and orderly

All the pieces, laid out nice and orderly

The process is pretty easy.  Put the eraser in the eraser holder – it should slip right in, drop in snugly, and lie flush with the top edge of the plastic holder.  After cutting out a paper strip, it’s trimmed to size, creased to locate the central point, and a pencil drawing (drawn as I’d like to see it printed).  This is taped upside down onto the eraser, rubbed along the back (a coin would work very well, but I just used one of the extra eraser holders), and the design is neatly transferred to the eraser.  The neat thing about this process is that I could design something in Inkscape, print it into the template, and color it in with the pencil for transferring to the eraser.

Lastly, let’s see the result!

Eraser stamp!

Eraser stamp!

As you can see, the final stamped result matches the orientation of the little drawing.  I just wish I’d saved the little scrap of paper with the original drawing on it!  The eraser holder was a joy to use and the final result looks every bit as great as I was hoping.

If I keep making these, I’ll probably want to upgrade my setup to include Serena’s recommended stamp pad and sharpener (you’ll see them linked in Serena’s Amazon link above).  I’d like to design something to make easy to hold the eraser, center it, and make a clean even stamp, but don’t have a great idea for one yet.  I’ll keep pondering this and maybe whip something up this weekend.

Eraser Stamp Carving

  1. Carved Eraser Stamping
  2. Further Adventures in Eraser Carving
  3. DIY Carved Eraser QR Code Stamp

  1. I mean, I guess it’s version 1 – but I labeled all the purple ones starting with 1 so… []

Heat Transfer Vinyl T-Shirts – Without A Vinyl Cutter, Part II

I recently posted my method for making DIY heat transfer vinyl t-shirts without a craft / vinyl cutter.  I used the process to make an Avatar: The Last Airbender themed t-shirt, then a set of four Fallout themed t-shirts for the entire family.  After that I designed, cut, and ironed several more t-shirts. (You’ll see me refer to ironing the design several times, but each time I ironed the vinyl through a piece of parchment paper, to protect the design from scorching and the iron from being marred by melted plastic)

I learned a few more things along the way and thought I’d share these newb-mistakes and pro-tips.

But first, how about some pictures?!

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  1. Cutting Designs
    1. Just be careful and go slow.
  2. Design Size
    1. I tend to make designs that are no more than about 6″ wide.  This has seemed to be a really good size to show off a cool design, but also fits neatly in the center of an 8.5″x11″ piece of standard printer paper.  You could make something a lot larger, but for all of my designs, this has worked out really well.
  3. Preparing Designs
    1. I forgot to take a picture of it, but it helps to draw an X and Y axis into your drawing.  The purpose of this is to help orient your design at the center of the fabric.  After I had cut out the design entirely, I then used the craft knife to cut triangles into the protective layer pointing towards the center of the XY axis center of the design.  Then, once this was done I could draw the XY axis lines on the protective layer.
    2. I used a yard stick to estimate the center line of the shirt, which I could then align with the XY axis lines on the design itself.
  4. Position Your Design
    1. After looking at various other t-shirts, I decided they tended to look best when the top of the design was about 3″ lower than the bottom of the “V” in my v-neck shirts.
    2. Once I had the shirt on the ironing board, I also put pieces of masking tape with a pen line on the ironing board to help me position and orient the yard stick repeatedly.
  5. Heat / Press
    1. Unlike my first attempt, I made sure to really push hard on the iron.  The idea is that you’re not just melting the vinyl adhesive, but actually melting it into the fabric.  If your iron isn’t hot enough, you’re not ironing long enough, or you’re not pressing hard enough, it won’t actually melt into the fabric.
    2. When you’ve melted it properly, you should see an almost… bubbly texture underneath the protective coating.  Then, once the vinyl is cool and you’ve peeled the coating off, the vinyl should look a little rippled since it is taking on the texture of the underlying fabric.
    3. This slideshow requires JavaScript.

  6. Iron, Cool, Wait, Inspect Vinyl, then Peel
    1. I made this mistake with the arc reactor t-shirt.  As I peeled the protective coating off, in one spot the vinyl got pulled up and in another spot it tore the corner off a sharp trapezoid in the design!  While it is possible I didn’t have the iron hot enough or press hard enough, I think the most likely explanation is that I didn’t wait long enough for the vinyl to cool – so it was still molten enough to be adhering to both the shirt and protective coating, causing the design to be damaged and torn.
  7. Peeling Direction
    1. If your design includes very thin or sharp little pieces (such as the pointy trapezoids in the Iron Man arc reactor), consider changing the direction of the protective coating peeling to avoid peeling towards a sharp point.  These little points have so little surface area they can easily stay stuck to the coating and get pulled off the shirt, ruining all your hard work.
  8. Repairing Mistakes
    1. The problem with making a mistake with heat transfer vinyl is that if you make a serious mistake to your design or application, you may have ruined a shirt.  (I would 100% wear a comfortable shirt even if the design wasn’t perfect.)  However, a little mistake doesn’t have to be the end of the world.  I made two mistakes on my arc reactor t-shirt, that I was able to fix well enough that they probably wouldn’t be obvious to the casual observer.

      Yellow arrows show where the design pulled up and wrinkled slightly. The red arrows point to where the design tore and was repaired.

      Yellow arrows show where the design pulled up and wrinkled slightly. The red arrows point to where the design tore and was repaired.

    2. The design of the arc reactor is about 3″ across, to give you a sense of the scale and size of the mistakes.  You can see two slight wrinkles in the vinyl, pointed out by the yellow arrows.  The red arrows points to where you can barely make out what appear to be wrinkles – but show where the design was torn and repaired.
    3. I didn’t find any really good way to fix the wrinkles, other than to really iron those areas very very hard.  It mostly pressed the wrinkles flat and they’re barely noticeable on the shirt.  Between the shimmery / reflective quality of the vinyl and uneven way a shirt would hang on a non-rectilinear organic body or form and the size of the wrinkles on the small design, it’s almost imperceptible.
    4. The torn design was initially quite heartbreaking.  By the time I had worked on this shirt, I had already created five other shirts without any kind of mistake.  It just so happened I either incompletely cut the design out (I don’t think so) or was a little impatient as I peeled the design (probably), and tore a pretty big piece off of the end of the right side trapezoid pointed out by the red arrow.  I tried to use my craft knife to peel the tip of the trapezoid off the protective coating, but it wasn’t working and I ended up mangling it beyond repair.  After stewing a bit, I figured I would simply cut out a new trapezoid piece and iron down over the torn piece.  I made sure to cut the new piece very slightly larger (we’re talking probably only 0.5 mm in each direction) and position it carefully over the damaged section, before ironing it down very firmly, waiting for it to cool down all the way, peeling the coating, then ironing it again.  Once again, I think the damaged portions wouldn’t be noticeable to most observers.

I would guesstimate a 5-foot long and 12″ wide roll of heat transfer vinyl could comfortably make 10-15 good sized designs and as much as 20 if you’re very careful.  Let’s say you can only make about 14 designs out of a roll, to be on the conservative side.  At about $7 for a basic color roll, this about $0.50 worth of vinyl per shirt.  My wife bought me several 2-pack blank v-neck shirts in assorted colors for about $14 per pack.  Ignoring the cost of my time (it’s a hobby, remember!) this is only about $7.50 per custom shirt.  I think this could make a really cool and inexpensive project for a class, letting all the kids make their own designs (by cutting the vinyl with scissors instead of craft knives, if they’re young) or to create a set of team shirts for a field trip or club.

Not only has this been a very fun and inexpensive hobby, I end up with a great looking custom t-shirt at the end that will probably last years.

I’ve got several more designs I’m working on and look forward to a few more updates.

Heat Transfer Vinyl T-Shirts (Without a Craft Cutter)

  1. Heat Transfer Vinyl T-Shirts – Without A Vinyl Cutter
  2. Heat Transfer Vinyl T-Shirts – Without A Vinyl Cutter, Part II
  3. Heat Transfer Vinyl T-Shirts Without a Craft Cutter (2023)

Heat Transfer Vinyl T-Shirts – Without A Vinyl Cutter

I’m going to commit the sin of a thousand online recipe websites and give you a bit of backstory before I get to the method.  If you don’t like fun, feel free to skip the first few paragraphs.

I recently watched Avatar: The Last Airbender and Avatar: The Legend of Korra with my kids. 1  Both shows were fantastic, but one particular character from A:TLOK was my absolute favorite. Varrick Iknik Blackstone is a fast talking, sometimes erratic, flamboyant industrialist / inventor voiced by John Michael Higgins.  Imagine a cross between Tony Stark and Zaphod Beeblebrox.2

Psst... Do the thing!

Psst… Do the thing!

You can find a few t-shirts out there which feature Varrick’s catchphrase3 and logo for Varrick Global Industries… but they all seem to suffer from at least one flaw.  They all appear to depict the logo mirror flipped with the big sail on the right hand side. I think I know why too.  An artist under the username of RogerBernstein on DeviantArt posted a very large, high quality version of the Varrick Global Industries logo in 2017, which just so happened to be mirror flipped.  His image has the distinction of being one of the first Google Image search results for “Varrick Industries Logo.”  I’m thinking people swiped his work, perhaps altered it a little bit, and then slapped it on t-shirts.  I mean… just look at this…

This doesn't look right

This doesn’t look right

Why am I so sure these logos are mirror flipped?  I paused TLOK during scenes in Season 2 – 4 when you can see Varrick’s yacht, near a plane, on a plane, on a jacket, and near some jewelry.  Now, I’m not even close to the kind of cosplayer / propmaker who has the patience, concentration, or dedication who can recreate their favorites props with meticulous planning, research, measuring, and endless revisions.  Even so, I’d at least like my designs to face the same direction as the show.  There are lots of other pictures showing this orientation, but this was the easiest one to locate.

The logo is partially visible on the yacht to the right side of the image

The logo is partially visible on the yacht to the right side of the image

Anyhow, with the help of GIMP, Inkscape, the pause button, and my trusty laser printer, I created my own design for the Varrick Global Industries logo – ready to put on a t-shirt.

  1. Basics
    1. Creating a design with “heat transfer vinyl” is reasonably straight forward.  The heat transfer vinyl is a thin sheet of vinyl stuck to a sheet of clear plastic with a mild adhesive.  You cut away what you don’t want, leaving the mirror of your design still stuck to the clear plastic, turn it over on a piece of fabric, and melt / fuse the design onto the fabric with heat.
    2. With access to a craft cutter ($250 – $1,000) and a heat press ($100 – $300), you could automate a lot of cutting work (but you’d still have to manually pull the excess vinyl out of the design) and have really fine control over the heat (if that was important to you), but none of that is actually necessary.  While these things might be helpful if you creating designs all the time, you don’t really need much more than some heat transfer vinyl and stuff you already have (a way to cut it, an iron, and some fabric).
  2. Materials
    1. Heat transfer vinyl.
      1. Also known / marketed as “HTV,” you’ll probably want to look for “stretch” or “stretchable” heat transfer vinyl if you intend to putting it on wearables like a t-shirt or similar.  If you’re not putting it on a wearable, you could probably get away with non-stretchable HTV.
      2. As this was my first such attempt, I went with some relatively cheap stuff that was only $9 for 5-6 feet worth of material.  I bought two rolls – one was a blue-purple metallic “chameleon” and the other was a dark silver-gray reflective.  Under normal indoor light conditions both look fantastic.  In brighter light they’ll look… well… brilliant.
      3. Pro Tip:  If your HTV came in a roll and packed in a box, consider keeping the box.  I normally discard boxes, but this way I can stack the rolls easily without having them roll away.
    2. Craft knife & Cutting Mat.  You may not be using a vinyl cutter, but you’ll still need a cutter.  If your design was very simple or you wanted to live dangerously and freehand it, you could probably get away with just using scissors.  We have an old medium size (12″ x 18″) cutting (possibly self-healing?!) mat which works well for most of our purposes.  These days they’re relatively cheap and definitely worth springing for a 2′ x 3′ model.
    3. Printer paper or Sharpie.  I created my design on the computer and printed it out (mirror flipped), then taped it to the HTV, then taped that down on the cutting mat.  If you wanted to just freehand your designs, you could just freehand the design directly on the HTV first.
    4. Tape.  Masking or blue painter’s tape.  The HTV arrived rolled up pretty tightly, so it definitely wanted to roll up while I was working.  The tape kept everything down and in place while I worked.
    5. Iron.  The HTV I purchased recommended applying heat for 5-15 seconds at 300 – 330 °F.  Our iron doesn’t list the temperatures – just the settings for different materials.  I ended up using the “Wool” setting based upon 30 seconds worth of internet research and going to Wikipedia.  The Wikipedia article suggested wool, silk, and polyester would all result in about 300 °F temperatures.  While I can’t vouch for the actual temperatures, the wool setting worked really well for me.
    6. Ironing Board.  I suppose an ironing board isn’t strictly necessary.  But, it sure was nice to have a big, flat, soft, narrow surface to lay my shirt on in order to iron it flat.  You could probably get away with putting down a blanket on a board or some sheets on top of some cardboard or a table.  However, if you already own an iron, chances are you’ve got access to an ironing board.
    7. Parchment Paper.  I used parchment paper because it’s cheap, plentiful, and non-stick.  It’s also slightly translucent, which makes it great for making sure everything is positioned properly and visually seeing when the design is starting to melt into place.  I’m sure there are lots of other nonstick options, but this worked well enough that it would definitely be my go-to in the future.
    8. Optional:
      1. Yardstick.  This is helpful in finding the center line for the t-shirt when you’re ready to apply the design.  It’s helpful, but not necessary.  Since you’re just using it as a straight edge, you could make do with just a long piece of straight cardboard.
      2. Specialty Tools.  You can buy specialty tools for “weeding” heat transfer vinyl, special tools for centering designs on shirts, and special heat pressers to apply vinyl.  For a few shirts now and then, I don’t think any of these are necessary.
  3. Process.
    1. A Note On Double-Checking.  As the old saying goes, measure twice and cut once.  While there are very few “mission critical” steps to this process, there are a few points where it makes a lot of sense to spend the time to legitimately completely check and then double-check something.
      1. Double-Check the Vinyl.  Depending upon the type of HTV you get, it might have two or three layers.
        1. Two Layers.  If it is two layers, there will be a thick clear/clear-ish protective plastic coating and the vinyl.  The side of the vinyl facing the protective coating is the part that will appear on the outside of your fabric and the side without the protective coating is the part that will melt and adhere to your fabric.
        2. Three Layers.  When there three layers, the vinyl will be sandwiched between the thick clear protective plastic coating and (at least in my case) a blue film on the back.  Again, the side of the vinyl facing the protective coating is the part that will appear on the outside of your fabric and the side with the thin film is the part that will melt and adhere to your fabric.
      2. I would recommend checking your HTV by cutting a thin corner off and peeling it to see how many layers you have.  I was alerted to this two/three layer issue by reading a lot of reviews.  My chameleon blue-purple vinyl had three layers and the dark gray reflective only had two.  You could probably remove it before you started cutting out your design, but you’ll definitely need to remove the film layer before ironing.
      3. Pro-Tip:  I would also recommend labeling the box your HTV is in with “two-layer” or “three-layer” to help yourself remember which kind you have when you come back to make a new design next time.
    2. Double-Check the Design.
      1. For most applications, you’ll want to mirror-flip your design.  You can do this in the graphics design program of your choice, probably using some printer settings.
      2. Pro-Tips:
        1. If you’re trying to create a vinyl pattern from some photograph, magazine page, or similar, you might want to photocopy it and then trace the design onto the back of sheet it’s printed on using a lightbox.
        2. Unless you’re creating a multi-layer process, consider making your entire design two-tone black and white.  When it comes time to cut out your design, this will make it a lot easier for you to remember which parts should be cut away and removed.
        3. You’ll be removing lots of areas from the vinyl in a later step.  There’s no harm to your design if you “over-cut” into these areas.  Overcutting allows you to ensure you’re definitely separating sections of the design from the parts that will be discarded.  I would recommend actually drawing in these “over-cut” spots into the design, either as part of the design process or manually with a pen after the design has been printed out.
        4. I like to add the word “reversed” to the design, so I’ll remember to actually mirror flip it.
        5. Since most anything I’ll be creating will fit on a t-shirt, I like to make my designs fit into a standard 8.5″x11″ sheet of paper.  I created a template to do this which has several guidelines and a border 1/4″ all the way around the sheet to make sure the design can be printed within the printer’s margins.
    3. Apply the Design.  As suggested above, you could cut out your design with scissors or perhaps even built it out of scraps of vinyl.  If you wanted to create lettering or follow a very precise pattern, I’d definitely suggest designing on a computer, printing it out (reversed), then taping the design to the vinyl so it doesn’t shift as you cut it, and taping the vinyl to the cutting mat so that doesn’t shift as you cut.
    4. Cut the Design.
      1. I used a craft knife and went slow, using steady medium-hard pressure to cut out the design.  When I wasn’t sure I had cleanly cut all the way through the vinyl, I went back and cut that area again.  Having done this a few more times since I started the blog post, I can say that I didn’t need to cut this hard – and could have used a medium pressure.  More than this and the clear plastic layer gets cut or scored.  This isn’t a problem, but it doesn’t lay flat quite as well any more.
      2. As you cut, be mindful of the areas you’ll be removing that you can “over-cut” into and those areas of your design where you won’t want any knicks and cuts.
      3. I made a point of “over-cutting” the critical pieces, especially at corners, because I did not want to chance the vinyl tearing as I removed the excess pieces.  A single section tearing or stretching would basically ruin the entire design and require starting over.
      4. I had to be sure I was cutting through the printer paper and cleanly through the vinyl, even at the risk of gouging the protective layer.  I was very surprised the protective layer held up as well as it did.  It was clearly scored where I had cut into it, but except for some very small parts, I never cut all the way through it.
      5. Once your design is cut out, use scissors to cut the entire area out of the vinyl roll.  I like leaving a 1/4″ allowance everywhere just so I know the scissors aren’t going to affect my design.
      6. Pro-Tip:  Before you start cutting, it might help to take a moment to plan out your cuts, draw in the areas for “over-cutting,” and even to make sure to darken in those areas that will be getting cut out to help keep things clear while you’re cutting.
    5. “Weed” the Vinyl.
      1. “Weeding” the vinyl is the process of pulling out all the vinyl pieces you’ve cut out that aren’t part of the design.  While there are lots of cheap weeding tool options for sale online for $5-10, I just used the point of my craft blade to pick these little pieces out.  I suppose it might help to have tweezers, a pushpin, a paperclip, or a toothpick, but the craft knife worked perfectly for me.
      2. I’d recommend going slowly, especially at corners, and making sure the parts getting removed are fully cut free from the design elements that are staying.
    6. Iron Fabric.  Definitely take the time to iron your fabric flat.  It would be a shame to discover a wrinkle on the underside of your t-shirt because the design was warped only after the vinyl was fused to the fabric.
    7. Orient the Vinyl.
      1. Once my pattern is cut and weeded, it’s ready to be placed on the t-shirt.  You can buy patterns, templates, and devices for centering a design on a t-shirt, but these seem unnecessary if you’re willing to simply be careful.  Heck, even if you had these specialty tools, you’d still need to be careful.
      2. I made sure my t-shirt was flat and centered on the ironing board, there were no wrinkles in the fabric, the amount of the shirt hanging on the left and right sides were about equal, and then used a yardstick to estimate the center line of the shirt running from the tag down.
      3. I put the design about four inches down from the neck in my shirt after looking at the designs on other t-shirts I had purchased.
      4. If you chose to cut out your design so there was a little extra room all the way around it, the empty clear protective plastic layer will still be “tacky” and help keep the design in place.
      5. Pro-Tips:
        1. It wouldn’t hurt to double-check that you’ve got the exposed vinyl side facing the fabric.  You definitely don’t want it melting against the parchment paper or your iron.
        2. One of the nice things about printing the design with guide marks and registration marks was that it made it a little easier to orient the design neatly on the shirt.  I printed a second copy of the design, then placed it on the shirt – then put the vinyl design down on the shirt underneath the paper.
        3. Before you place the vinyl on the fabric, take a moment to double check there are no stray pieces of weeded / discard vinyl stuck to the protective layer.  They’ll be impossible to remove once you’ve started ironing.
    8. Cover with Parchment Paper.
      1. My design was only about a 6″ diameter circle, so I only needed a piece of parchment paper slightly larger than this.  Since the parchment paper isn’t really consumed by this process, I went ahead and got a big square of it so I can reuse it on other shirts.
      2. The parchment paper I’m using is slightly translucent, which made it easy to ensure the design hadn’t shifted and so I could make a few last second adjustments.
    9. Iron The Vinyl.
      1. Obviously, read and follow the directions for your specific heat transfer vinyl.  The vinyl I purchased recommended 300 – 330 °F for 5 to 15 seconds.  I don’t have a fancy iron, so I heated the iron to the “wool” setting (estimated to be 300 °F) and ran the iron over the parchment paper, pressing firmly, in a small circular pattern for about 15 seconds in each area.  I kept the iron moving so as not to scorch any part of the design, the shirt, or the parchment paper.
      2. Pro-Tips:
        1. It never hurts to do a few test pieces.  I tried ironing both kinds of HTV onto an old undershirt to make sure the heat settings worked, I understood which sides needed to face against the fabric, how I would remove the backing once it had been ironed, and how it all worked.
        2. Having now done this a few times since I started the blog post, I would recommend putting something rigid or semi-rigid under the shirt.  The first time I ironed the design, it looked great – but came out slightly wrinkly in the wash.  I re-ironed it using really heavy pressure and the same shirt has held up in the wash ever since.
    10. Remove Backing.
      1. The instructions for my vinyl told me to “hot peel” the backing.  I took this to mean that I should carefully remove the clear protective coating from the heat fused vinyl.  There were a few small spots where it looked like the vinyl wanted to come up a little bit, but the backing came up cleanly everywhere.
    11. Cover and Iron Again.
      1. Since there were a few small spots where it looked like the vinyl might have come up slightly as I was removing the backing, I put the parchment paper back down and ran the iron around the entire design for about 5 seconds in each spot.
    12. Don’t Wash for 24 Hours.
      1. My instructions say to wait 24 hours before washing the garment.  I spent a while on this design, so I wasn’t about to chance it by throwing the shirt in the wash.
    13. Iron Again (Optional).
      1. After I washed the first shirt I made, the design appeared to have buckled slightly.  After a second ironing, it has stood up to repeated washings without a problem.

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Heat Transfer Vinyl T-Shirts (Without a Craft Cutter)

  1. Heat Transfer Vinyl T-Shirts – Without A Vinyl Cutter
  2. Heat Transfer Vinyl T-Shirts – Without A Vinyl Cutter, Part II
  3. Heat Transfer Vinyl T-Shirts Without a Craft Cutter (2023)

  1. I’m going to reference these shows and their contents a lot.  I don’t own their intellectual property, they do, I just wanted to make a fun t-shirt for myself. []
  2. Those who know, know. []
  3. Do the thing! []

Cephalopod Robot Friend Progress

Well, it’s here!  Today is the start of #CephalopodWeek on ScienceFriday!  There’s a little progress to report on my, tentatively named, CuttleBot.  I’ll post a picture first, then get to describing the progress so far.

Assembled CuttleBot head, side view

In the prior post I listed some of my sources of inspiration.  Another such source is the work of Sean Charlesworth and his awesome Octopod, Gowanus Monster, and newly published Scuttleship.   ((If you like his work, be sure and check out his Etsy shop!))

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Since I need special connectors for the articulated/articulating tentacles and I wasn’t able to edit the files in OpenSCAD, I wasn’t able to use Sean’s STL files.  However, I really like the aesthetic of his designs1 and how they really evoke the form of an octopus or cuttlefish.  Here’s a mock up I used to help me visualize what a full-scale Scuttlefish head might look like with the tentacles I designed.

Scuttlefish with placeholders for tentacles

Scuttlefish with placeholders for tentacles

Unfortunately, the Scuttlefish head and body parts are just a tad too large for my small printer’s build volume.  However, even if I were using a larger printer, I would still not want such a large robot as I’m hoping for this to be a shoulder-mounted companion.

Thus, I began work creating an OpenSCAD cephalopod cuttlefish head inspired by Sean’s work.

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Now that I had a design, I set the printer to work over night.  This design is mostly to see if the various parts for the tentacles would work with this head.  Since I want to put some LED’s in the eyes and possibly the mouth, I’ll need to hollow it out later.

The print took a little over an hour for the head.

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How about a video of it working?

I’m very happy with the progress so far.  If I can shrink down the tentacle mechanisms, I can add more tentacles for more interesting emoting and animations.  The video just shows the results of me yanking the fishing line running through the CuttleBot’s head.

Here’s a few more sketches of how I am planning on putting it all together.

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I might add some fabric frills / fins, instead of printed ones.  I was also contemplating letting the top “shell” of the CuttleBot be formed from 3D printed spines with a fabric or thin plastic sheeting covering.  This might help reduce weight or allow for internal lights to shine through the body.

Companion Robots: Building Robot Friends

  1. Cephalopod Robot Friend, the story so far
  2. Cephalopod Robot Friend Progress
  3. CuttleBot Body and OpenSCAD Design Tips
  4. An Assembled CuttleBot Body
  5. Building the Monocle Top Hat Cat for #MicrobitVirtualConcert
  6. Companion Robots and Maker Faire Season!

  1. Cephalopod Steampunk?! []

PCB Design with KiCAD

It is pretty incredible that you can find a written or1 video tutorial on virtually any topic to learn anything.  Today, I’m particularly thankful to Shawn Hymel, Sparkfun, and Digi-Key for putting together their Intro to KiCAD video series on printed circuit board design.

This series took me from knowing nothing at all about PCB layout and design to ordering my very first board through OSHPark.  My first design isn’t anything amazing – it was basically a breakout board for an ATTiny85 to make it easier to build small projects. 

My first ATTiny hacked tap light was a mess.  I soldered wires directly to the microcontroller making it a real pain to update. ((I ask you – is this the work of a sane man?)) I soon realized my mistake and soldered an 8-pin socket in its place so I could reprogram the chip easily.

This is the alternative to a custom PCB – a rat’s nest of wires soldered to a chip

Mercifully, Shawn’s tutorial series got me up and running very quickly.  This post is not meant to be a tutorial for KiCAD, but more like a “lab notebook” for the workflow to create a board.  If you haven’t built a board yet, go check out Shawn’s series and follow along in KiCAD.  If you are a novice like me, you might find these notes helpful:

Eeschema

  • If you launch Eeschema separately from KiCAD, you can save different versions of a schematic.  Keeping old versions of design files is hugely helpful to me and if you launch KiCAD directly, the option to save different file names and versions is not available!
  • The keyboard shortcuts in Eeschema are great.  With just a few, it’s possible to really get around quickly.
    • “Shift-A” and left click to place parts 
    • “M” to move parts
    • “R” to rotate parts
  • It is necessary to add “PWR_FLAG” to both the power and ground lines.
  • Double check your connections work by clicking on the bug icon. 
  • Assign the parts you intend to use to match up with the symbols using the “Assign PCB footprints” icon.
  • Save your work and “Generate netlist” to have something the Pcbnew will be able to work with.

Pcbnew

  • First configure the Design Rules by going to Setup -> Design Rules.  Shawn pulled these KiCAD Design Rules from the OSHPark.com website.  KiCAD has apparently changed a little since the version used on the OSHPark website, but the settings are easy enough to identify and change.
    • Net Classes Editor
      • Clearance: 0.01.  Track Width: 0.01.  Via Dia: 0.03.  Via Drill: 0.015.  uVia Dia: 0.03.  uVia Drill: 0.015.  Diff Pair Width: default.  Diff Pair Gap: default.
      Global Design Rules
      • Minimum track width: 0.006.  Minimum via diameter: 0.027.  Minimum via drill: 0.013Custom Track Widths: Track 1: 0.03
  • Read netlist” to bring your design over from Eeschema.
  • Placing parts and drawing lines gets a lot easier when you fine tune the Grid.  I started with 5.00 mils at first, then smaller figures to place smaller parts and features.
  • Once the parts are arranged in Pcbnew, connect the ground and power lines using 30 mil traces and everything else using 10 mil traces.
  • Create the outline for the board cutout by clicking on “Edge.Cuts” and drawing with the “Add graphic lines” tool.  Starting with my second board, I began cutting the corners off, so that they were a little nicer to hold and 
  • Label things on the “F.SilkS” and “B.SilkS” layers using the “Add text”‘ button.  Since my boards are so small, I wanted the text to be a fair bit smaller than the default settings.  I edited the text settings by going to Setup -> Text and Drawings.  
    • Copper text thickness:  0.007.  Text height:  0.035.  Text width:  0.035.
  • Create a copper pour with Place -> Zone, then choose “F.Cu”2 and “GND”.3 and draw a box around your board.  Then repeat for the “B.Cu” and “GND.”

Again, I’m a total newbie at circuit design.  If I got something wildly wrong, please let me know.  :)

  1. More frequently these days []
  2. Front copper []
  3. Ground, natch []

Maker Faire 2018 – 3D Printing for Home Improvement

If you’re here checking out my site after my presentation, you can check out all the slides from my presentation above. If you’d like more information about the individual things in the slides, I posted an update for most of them over on Hackaday. If you’ve still got some questions, feel free to leave a comment below, hit me up on twitter, email me directly.