TheMitch22 downloaded the 3x2x1 Rubik’s cube v4, printed it, and uploaded a video of it working! The cycle is complete.
100% printable, no hardware or tools required. And it looks amazing in red.
TheMitch22 downloaded the 3x2x1 Rubik’s cube v4, printed it, and uploaded a video of it working! The cycle is complete.
100% printable, no hardware or tools required. And it looks amazing in red.
My prior copy of this 3x2x1 Rubik’s Cube was printed a few parts at a time – I’d print one part, test it, print up another, etc. Last night I was able to use my production file to generate all seven pieces in one go. It took 1 hour and 45 minutes to complete the print job, but well under three minutes to clear most of the pieces of the raft off the parts and assemble the puzzle. In order to help people modify and improve upon my design, I’ve upload the original Sketchup files, the STL I used, as well as my own GCode.
Owenscenic on Thingiverse asked,
I am interested in trying your gcode, how did you generate it? How well does it minimize strings between the printed parts? I’ll look at is to see how it starts and the temp…
In case you’re wondering too, the answers are as follows:
Owenscenic, please let me know how your print of this turned out! Please post a picture!
The design should be pretty intuitive. However, I went ahead and took some pictures of the assembly anyhow.
As I mentioned in an earlier post, I think this one came out really really well. :)
I’m so happy with the way this has turned out.
I’ve made a bunch of changes since the last revision of this printable 3x2x1 Rubik’s Cube puzzle:
The was one design choice on which I waffled. I considered making the center cubes non-identical, with one having half a barbell stick out and with the other having the internal connector you see now. This would have removed much of the sideways flex – since the barbell would be stationary. I did not go with this design choice because whether the puzzle used one barbell and two connectors or male/female center cubes, there would always be some flex caused by the use of a connector rather than a static pin. And, to be honest, I much preferred the symmetry of having everything assembled out of just three unique parts.
I know I’ve mentioned this before, but I really like the idea of a MakerBot printable toy that can be printed in one go and then assembled without tools or any additional hardware. I also think this would make a great MakerBot print demonstration.
I’ll post some pictures of the parts a little bit later.
I’ve printed up pieces uploaded this morning to Thingiverse, tried them together, broke two pieces, modified them, printed, and fit some together. I’ve just modified the STL for what I hope is the last time. However, I have the barbell fit snugly into the center cube. It rotates relatively freely and does not want to pop out. (Of course, I’m sure it could/would if I applied enough force). This leaves the outside cubes. I modified the semicircular tabs a little and will reprint them later.
The only problem is that it takes about 40 minutes for my machine to print up two cube parts and a barbell, since they’re so solid.
The important thing is that I’ve just been able to print up and assemble the crucial mechanisms for this puzzle. I think the next iteration may be what I needed.
This is easily my most intricate digital design for the MakerBot yet. It’s a 3x2x1 variation on the Rubik’s cube puzzle I had posted earlier.
This version incorporates the prior improvements as well as designing a connector system inspired by R3bbeca‘s beco block connectors.
This has enabled a totally printable toy. This just makes me happy. 1 The idea that I can crank out a set of these parts, clean them up a little, and just snap the toy together is just amazing.
TomZ‘s original 1x2x3 “friendlier” Rubik’s cube designs were also totally printable – but required a printed pin that was later glued in place. I like the ideal of all printed parts – but strongly prefer a design that can later be disassembled easily. And, as I mentioned above – the ability to hand assemble the toy is important to me.
I wasn’t able to recreate R3bbeca’s female connector designs2 so I made a simplified version that should suffice.
The simplified connection mechanism is essentially two plastic fingers that will (hopefully) pinch the barbell into place. This was made by designing the outline of the gripping “fingers,” creating a horizontal cylindrical hole slightly larger than the intended end of the barbell, then creating a vertical cylindrical hole in the center for the barbell to be inserted through, then a bit of cleanup.
The biggest potential problem is that this design will require a carefully tuned ‘bot. The center cube pieces have a lot of stuff packed in there – semi-circular slots for the semi-circular tabs, connectors for the barbell, and thin walls separating things. With those thin walls and interior overhangs, this may be a difficult design to print.
I think Bender is up to the task, but we’ll see in a few hours. :) I can’t wait to print this!
For me, having a MakerBot is like waking up to Christmas every morning.
Oh, and before I forget, if you want one of these – leave a comment or send me an e-mail through the Contact page. Make me an offer.
I’ve been fiddling with the designs for the 3x2x1 Rubik’s Cube incorporating some of the changes I had considered:
I finally found the time to print a copy of my 3x2x1 Rubik’s Cube. Having printed it, I’d make a number of improvements in the next design iteration. I would:
It slides reasonably well and is certainly functional. However, after several center cube rotations I will tighten the center bolt.2
SWEET. I’ve been so busy of late123 that I haven’t even been able to print several of the things I’ve uploaded. I’ve uploaded several cookie cutters, with another sitting on my hard drive and one more knocking about in my head keeping the cobwebs company. I’ve also uploaded my variation on a simplified Rubik’s cube.
Well, someone printed it! It looks AMAZING! I wonder if it works properly? I slapped the design together rather hastily after getting frustrated with my MakerBot failing to print TomZ’s 1x2x3 Rubik’s cube.4
I can’t wait to either get some feedback from Lotu (who printed it) or print up one of my own so I can improve on the design. I’d really like to make a version that is 100% printed – with a snap joint in the middle rather than a nut/bolt system. If I go down that route, I was thinking about incorporating what I learned from the fantastic Becco blocks connection system by r3becca.
If you print one of these, please answer the following questions:
I’ve already posted about how much I like TomZ’s simplified version of a Rubik’s cube. Only problem is that I wasn’t able to encourage my MakerBot to print it. Taking into account some of my ideas, I’ve designed a derivative. It’s 4:45am at the moment – not a good time to have my MakerBot tooting and beeping. ;)
Here’s what I’ve done with this version:
In a future iteration, I hope to change the middle pieces so that all you need to do is snap the two middle pieces together. Also, I’d like to incorporate any design suggestions from people who have tested this version.