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. DrawBots for the slow learner
  5. DrawBot - Parts Ordered!!!
  6. DrawBot - The Breakdown
  7. DrawBot - Parts Shipped!!!
  8. DrawBot - What would you draw?
  9. DrawBot - The Plan!
  10. DrawBot - The Hacks
  11. DrawBot - Giant Unicorn?
  12. DrawBot - The Delivery?
  13. DrawBot - The Delivery, Part II
  14. DrawBot – The Assembly, Part I
  15. DrawBot – The Delivery, Part IV
  16. DrawBot – The Assembly, Part II
  17. DrawBot – The Assembly, Part III
  18. DrawBot – Design Considerations
  19. DrawBot – Halp!!! No - seriously, a little help?
  20. DrawBot – The Face Palm
  21. i find i want to add more posts in some random series, just so i can use my new plugin
  22. Simple Series WordPress Plugin
  23. Now Simple Series will also add the series list to RSS feeds too!
  24. DrawBot – The Silver Lining of Failure
  25. DrawBot – The Assembly, Part V
  26. DrawBot – The Assembly, Part VI
  27. DrawBot – Printed Parts
  28. DrawBot – The Operation, Part I
  29. DrawBot – The Assembly, Part VIII
  30. DrawBot – The Breakdown, Part II
  31. DrawBot – Printing!
  32. DrawBot – Printing, Part II
  33. DrawBot – Why are you crying?
  34. DrawBot – Calibration
  35. DrawBot – Pen Selection, Part II
  36. DrawBot – Onwards and Upwards!
  37. WordPress plugin - OCD Plugin Stats
  38. Restarting a Stalled DrawBot Drawing
  39. Two new DrawBot links! And an update!
  40. Maze Code + Polargraph?
  41. All New Polargraph on the way!!!
  42. Ideas for improving my DrawBot
  43. The Eagle Has Landed
  44. Overengineered Stepper Motor Mounts, Filament Guides
  45. Sourcing DrawBot Parts
  46. Building an Arduino Drawing Robot - On The Cheap
  47. DrawBot - Printed Parts Tour
  48. OCD Plugin Stats and the WordPress.org Statistics API
  49. How to add a custom button to the WordPress Visual TinyMCE Editor
  50. A Study of Drawing Robot Pen Holders and Design Considerations
  51. DrawBot Pen Holder Post Mortem
  52. Drawing Robot Penmanship
  53. PlotterBot at Maker Faire Bay Area 2013!
  54. PlotterBot.com - a new site dedicated to drawing robots

  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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