DrawBot – The Breakdown

The Breakdown:

  • Overall, this project cost to date is $103.30.   That’s less than I would have spent for a single really large framed print.  If I had to, I could have done this for less – especially if I were willing to be more patient.
    1. If I had placed my order with just one source and for the cheapest/slowest shipping option possible, I might have saved $5 in shipping. 1  For the extra $5, I’d rather have all the parts arrive this Thursday rather than next Thursday or a month or two when the shields were back in stock.
    2. I probably could have used an old power adapter from some other old scrap electronic device, but at $6.95 it just made sense to get a brand new device from Adafruit so I could dedicate the adapter to this project.
    3. I could have probably done without the micro servo and saved $6.00 since I’m mainly interested in doing single-line drawings – but this small investment will ensure I can do any kind of drawing I want by enabling pen lifts.
    4. I recently pulled two tin can stepper motors from old electronics, which could probably do the job.  However, at $14.00/stepper motor the price just seemed right.  These are pretty big motors that would be able to handle negotiating beaded cords with weights, if I ultimately have to go that route.
    5. Since I don’t have tons of parts lying around and I’d like to get started on this project before the weekend, it was worth it to me to pay a little extra.  However, if you just had to do this project for the cheapest possible amount and didn’t care how long it took, you could shop around to place a single order with one distributor, recycle a power adapter, and probably pull a small servo and two steppers out of some dumpster-score/junk heap.
  • At just a little over $100, I can use an identical hardware setup to John Abella – which means I can recycle his modifications to the Polargraph code.  Since he was using metal beaded cord and printed gears, he had to modify the code to accommodate these changes.  I’ll have to make some changes too – but it should be much easier to do so since I can compare John’s and Sandy’s code bases.  If the parts ship today, I should be able to get them on or before Friday.  The additional benefit of using the US Postal Service is that they’d deliver on Saturday if it comes to that.
  • For a full list of all parts I ordered, check out my post “DrawBot – Parts Ordered!!!
Posts in the DrawBot Adventure Series
  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 - What would you draw?
  8. DrawBot - The Plan!
  9. DrawBot - The Hacks
  10. DrawBot - Giant Unicorn?
  11. DrawBot - The Delivery?
  12. DrawBot - The Delivery, Part II
  13. DrawBot – The Delivery, Part III
  14. DrawBot – The Assembly, Part I
  15. DrawBot – The Software, Part I (and an existential conversation)
  16. DrawBot – The Delivery, Part IV
  17. DrawBot – The Assembly, Part II
  18. DrawBot – The Assembly, Part III
  19. DrawBot – The Assembly, Part IV
  20. DrawBot – Design Considerations
  21. DrawBot – Halp!!! No - seriously, a little help?
  22. DrawBot – The Face Palm
  23. DrawBot – The Delivery, Part V
  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 Assembly, Part VII
  29. DrawBot – The Operation, Part I
  30. DrawBot – The Assembly, Part VIII
  31. DrawBot – The Breakdown, Part II
  32. DrawBot – Printing!
  33. DrawBot – Printing, Part II
  34. DrawBot – Why are you crying?
  35. DrawBot – Calibration
  36. DrawBot – Pen Selection
  37. DrawBot – How to Recover from a Stalled Print!
  38. DrawBot – Drawing Success(ish)!!!
  39. DrawBot – Pen Selection, Part II
  40. DrawBot – Onwards and Upwards!
  41. DrawBot – Another Successful(ish) Drawing!, and an Update
  42. Restarting a Stalled DrawBot Drawing
  43. TSP FTW!
  44. Speedier DrawBot Drawings
  45. Two new DrawBot links! And an update!
  46. Excellent DrawBot Slides
  47. Another Drawing Robot!!!
  48. The biggest inkjet printer ever
  49. Why do DrawBots draw on walls?
  50. Maze Code + Polargraph?
  51. Ideas for improving my DrawBot
  52. DrawBot Aesthetic Re-Design Ideas
  53. The Eagle Has Landed
  54. Every Body Needs a Skull
  55. This project is not going to overengineer itself
  56. Overengineered Spools
  57. Overengineered Stepper Motor Mounts, Filament Guides
  58. Overengineered Bolt Endcaps, Case Holder
  59. Sourcing DrawBot Parts
  60. DrawBot - A Tour!
  61. DrawBot - A Preview
  62. Arduino Powered Drawing Robot Poll
  63. Building an Arduino Drawing Robot - On The Cheap
  64. DrawBot - Printed Parts Tour
  65. Unidentified Foam Object
  66. Arduino Powered Drawing Robot - Take 2 (Or 3)
  67. DrawBot, now ACTUALLY wall mounted!
  68. Drawing Robot Pen Holders, Calligraphy Pens, and Thought Experiments
  69. Ideal Qualities in a Drawing Robot Pen Holder
  70. Enough talk! Finally a pen holder!
  71. DrawBot Pen Holder Post Mortem
  72. To Maker Faire!!!
  73. Skipping! How could I forget the skipping?!
  74. PlotterBot at Maker Faire Bay Area 2013!
  75. PlotterBot.com - a new site dedicated to drawing robots
  1. Adafruit was out of their motor shields, so I had to go to a third-party.  Admittedly, a third-party I love using.  Waiting until they were in stock and then placing a single order would probably have saved me $8, but the shield was already discounted $8 through MakerBot anyhow.  I guess that would have been a wash… []

One Response to “DrawBot – The Breakdown”

  1. […] my prior cost breakdown post, I’ve invested a little more in this project.  Thankfully, this hasn’t been a project […]

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