Sourcing DrawBot Parts

This can be a surprisingly good place to shop for robot parts

This can be a surprisingly good place to shop for robot parts

I’ve previously discussed sourcing the main electronic components for a drawing robot.1 Since there’s more to a robot than just the electronics that make it work, I thought I would list my other resources in one place.

  • Electronics.  The electronics are the brain and heart of this project.  There’s really only two parts that could not be found or scavenged – these parts being the Arduino and the Adafruit Motor Shield.
  • Project Box. I’m using a long thin pine box left over after a huge catering party platter order. Frankly, you could mount the parts on nearly anything – a 2×4 or a nice custom box – it’s entirely up to you.  Heck, you could even screw these parts directly into a wall if you were feeling particularly adventurous.

  • Structural Parts.  Besides these main components, it’s really really useful to have a 3D printer to manufacture all the parts necessary to make it all work.  Motor mounts, spools, etc.  If you had a laser cutter or a ton of quick-set plastic, you could probably fabricate perfectly serviceable parts.  The parts I’ve designed are ideally suited for my own project, could be modified for your own project, or you could just design some parts from scratch.
  • Hardware.  There are also all the little bits of hardware to hold everything together.  I still have a ton of M3x16 bolts and M3 nuts left over from building a Cupcake CNC and Thing-O-Matic.  Besides these M3x16 bolts and M3 nuts, I did use two screwhead M3x16 bolts to hold the Polargraph case in place and eight M3x8 bolts to attach the two motors to the mounts.
    • McMaster has a truly amazing website.  Even if you want to build a drawing robot and have zero parts on hand, you could pick up all the hardware you need from them super-cheaply.  Update:  The only thing I don’t care for about their website is that they don’t have a way of getting an estimate on shipping.  Among McMaster’s virtues is their amazingly responsive customer support.  I just asked them for a shipping estimate on these parts and they got right back to me.  You could pick up a set of 100 nuts, 100 M3x16 bolts, and 100 M3x8 bolts for about $6.  This is an absolute bargain for way more nuts and bolts than you’ll ever need for this project.
    • Chances are if you really had to you could use whatever bits of hardware you can find lying around your place.  I’ve seen examples of similar drawing robots using zip ties to hold the motors in place.
  • Electronic Bits.  I still need to track down some rainbow colored ribbon cable and connectors.  While I do actually have all the pieces of scrap around my home to finish the robot right now, I don’t want to do this half-way.  I want to use a rainbow ribbon cable because (a) I need to extend the motor leads to reach the circuit board, (b) it would be very helpful to have each lead color coded separately, and (c) they’re really pretty.  As for the wire connectors, all the other parts to my setup are very modular and it would be very nice to have the electronic connections just as modular.  After searching around, I found that Sparkfun has all the little pieces I need to finish this project.

I recently had a very unsatisfactory experience trying to source some parts locally, so I”ll be placing an order for some ribbon cable and jumper wires from Sparkfun.

”Posts
  1. Wanna make a DrawBot?
  2. DrawBot Resources and Links
  3. DrawBots for the slow learner
  4. DrawBot - Parts Ordered!!!
  5. DrawBot - The Breakdown
  6. DrawBot - Parts Shipped!!!
  7. DrawBot - What would you draw?
  8. DrawBot - The Plan!
  9. DrawBot - Giant Unicorn?
  10. DrawBot - The Delivery?
  11. DrawBot - The Delivery, Part II
  12. DrawBot – The Delivery, Part III
  13. DrawBot – The Software, Part I (and an existential conversation)
  14. DrawBot – The Delivery, Part IV
  15. DrawBot – The Assembly, Part III
  16. DrawBot – The Assembly, Part IV
  17. DrawBot – Design Considerations
  18. DrawBot – The Face Palm
  19. DrawBot – The Delivery, Part V
  20. i find i want to add more posts in some random series, just so i can use my new plugin
  21. This is a test of the Simple Series post system... This is only a test
  22. Now Simple Series will also add the series list to RSS feeds too!
  23. DrawBot – The Assembly, Part V
  24. Simple Series - Half-Life; Market Research
  25. DrawBot – The Assembly, Part VIII
  26. DrawBot – Printing!
  27. DrawBot – Why are you crying?
  28. DrawBot – Calibration
  29. DrawBot – Pen Selection
  30. DrawBot – Drawing Success(ish)!!!
  31. DrawBot – Onwards and Upwards!
  32. DrawBot – Another Successful(ish) Drawing!, and an Update
  33. Plugin Considerations
  34. WordPress Plugin: Easy CC License
  35. Restarting a Stalled DrawBot Drawing
  36. TSP FTW!
  37. Speedier DrawBot Drawings
  38. Two new DrawBot links! And an update!
  39. Why do DrawBots draw on walls?
  40. All New Polargraph on the way!!!
  41. Ideas for improving my DrawBot
  42. I think I know what I want to draw next...
  43. This project is not going to overengineer itself
  44. Overengineered Spools
  45. Sourcing DrawBot Parts
  46. Simple Series WordPress Plugin Update
  47. How to add a custom button to the WordPress Visual TinyMCE Editor
  48. Drawing Robot Pen Holders, Calligraphy Pens, and Thought Experiments
  49. Ideal Qualities in a Drawing Robot Pen Holder
  50. To Maker Faire!!!

  1. Photo courtesy of Jes []
  2. This is the type I have left over from building my MakerBots []

One Response to “Sourcing DrawBot Parts”

  1. […] a few more days yet before I can completely finish the drawing robot.  I still need to order some rainbow ribbon cable and connects, wire up the motors, and then actually draw something with the brand spanking new PolargraphSD […]

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