Overengineered Stepper Motor Mounts, Filament Guides

Simple - see?

Simple – see?

If you’re just tuning in, I’m working towards overengineering a drawing robot.1 Here’s my progress to date:

  • PolagraphSD case – discussed here – done!
  • Mounts for a paper roll – discussed here – waiting to upload…
  • Filament spools – discussed here – waiting to upload…
  • Stepper motor mounts – discussed in this post – waiting to upload…
  • Filament guides – discussed in this post – waiting to upload…
  • Pen holder/gondola – TBD

The most difficult part is definitely going to be the pen holder.  I’ve seen some good ones, but… well, that’s another blog post.  :)

  • Motor Mounts.
    • I’ve designed these motor mounts using the same exact groove system that I used to mount the paper roll holder.  This means I’ll be able to adjust, mount, and dismount the motors by just adjusting a single bolt.  I’m a little concerned about whether the plate the motors are attached to is thick enough to prevent it from wobbling.2
    • I’ve also left space around the motor so that I can add some kind of insulating material.  I’ll try a few different materials, starting with the cheapest and most readily available – cardboard.  After that, I’ll try polar fleece, foam packing material, a sheet of rubber or silicone.
    • With some minor modifications to the design, I could use some zip ties hold down the motor.
    • Since I don’t have any really really short M3 bolts, the length which would be ideal for holding the motor to the mounting plate through a thin layer of material, I’ll use an M3x16 with several M3 nuts on it.
  • Filament Guides.
    • In my earliest version of my drawing robot I tried to use a plastic filament guide which was incorporated into a motor mount.  While a cool idea, the original just didn’t work.  The filament squeaked and tended to bind on the filament guide.  This may have been due to the filament rubbing against the wood of the project box.  This new one is basically a plastic cylinder that will be insert into a hole in the wooden project box.

”Posts
  1. Wanna make a DrawBot?
  2. DrawBot Resources and Links
  3. DrawBot, the Adventure Begins
  4. DrawBot - Parts Ordered!!!
  5. DrawBot - The Breakdown
  6. DrawBot - Parts Shipped!!!
  7. DrawBot - What would you draw?
  8. DrawBot - The Hacks
  9. DrawBot – The Software, Part I (and an existential conversation)
  10. DrawBot – The Assembly, Part III
  11. DrawBot – The Assembly, Part IV
  12. DrawBot – The Face Palm
  13. i find i want to add more posts in some random series, just so i can use my new plugin
  14. This is a test of the Simple Series post system... This is only a test
  15. ZOMG! Simple Series is going viral!
  16. DrawBot – The Silver Lining of Failure
  17. DrawBot – The Assembly, Part V
  18. DrawBot – The Operation, Part I
  19. DrawBot – The Assembly, Part VIII
  20. DrawBot – The Breakdown, Part II
  21. DrawBot – Printing!
  22. DrawBot – Calibration
  23. DrawBot – Pen Selection
  24. DrawBot – Drawing Success(ish)!!!
  25. DrawBot – Pen Selection, Part II
  26. DrawBot – Onwards and Upwards!
  27. Plugin Considerations
  28. WordPress Plugin: Easy CC License
  29. WordPress plugin - OCD Plugin Stats
  30. DrawBot Practice Tip: A Watched Pot
  31. Why do DrawBots draw on walls?
  32. DrawBot Aesthetic Re-Design Ideas
  33. This project is not going to overengineer itself
  34. Overengineered Stepper Motor Mounts, Filament Guides
  35. Arduino Powered Drawing Robot Poll
  36. Building an Arduino Drawing Robot - On The Cheap
  37. DrawBot - Printed Parts Tour
  38. DrawBot, now ACTUALLY wall mounted!
  39. How to add a custom button to the WordPress editor
  40. How to add a custom button to the WordPress Visual TinyMCE Editor
  41. A Study of Drawing Robot Pen Holders and Design Considerations
  42. Ideal Qualities in a Drawing Robot Pen Holder
  43. DrawBot Pen Holder Post Mortem
  44. Drawing Robot Penmanship

  1. Photo courtesy of Casey Hussein Bisson []
  2. Wibbly wobbly, timey wimey []

2 Responses to “Overengineered Stepper Motor Mounts, Filament Guides”

  1. […] motor mounts – discussed here – waiting to […]

  2. […] and the brilliant open source work of others like Sandy Noble and Dan Royer, I’ve designed all of my own printable plastic parts from scratch, explained my thoughts and considerations behind the designs in excruciating detail, and shared all […]

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