DrawBot – Drawing Success(ish)!!!

Starry Night by Van Gogh, drawn by a freakin’ narcoleptic robot

Starry Night by Van Gogh, drawn by a freakin’ narcoleptic robot

I think that turned out rather well!!!  If you look closely at the area circled in red in the next picture, you’ll see where there is a discontinuity in the line.  You may have to look at the large version to really see where this happens.

Starry Night by Van Gogh, drawn by a freakin’ narcoleptic robot, with the error circled

Starry Night by Van Gogh, drawn by a freakin’ narcoleptic robot, with the error circled

I suspect that my attempt to fix the stalled drawing probably did not have a role to play in the robot drawing off the top edge of the paper.  I think that is my fault for badly centering the paper on the robot.  Let’s see it again, without the red circle, with the original image overlaid.

Starry Night by Van Gogh, drawn by a freakin’ robot with narcolepsy, overlaid the subject image

Starry Night by Van Gogh, drawn by a freakin’ robot with narcolepsy, overlaid the subject image

There is clearly some calibration and whatnot to be done, but I’m still amazingly pleased with the results.  As much as I’ve blogged about drawing robots, the entire process from assembling parts ordered online to having a machine that actually draws stuff has been amazingly painless.  Based on the image above, it looks like I need to:

  • Adjust the aspect ratio, so that the image isn’t made too wide by the drawing process.  I suspect this has something to do with the “Setup->Machine Width” setting.  That was the setting that caused the drawing to be unnaturally narrow.
  • Adjust the amount of line that is unspooled in the center of the drawing.  I suspect this has something to do with the “Setup->MM per Rev” setting.  I have nothing upon which to base this suspicion except that my feeling is the robot is spooling out too little line.  I suspect that if I tell it that the spool is slightly smaller (closer to 47 than the 50 I’m using now) I would end up with a better result.

”Posts
  1. DrawBot, the Adventure Begins
  2. DrawBots for the slow learner
  3. DrawBot - Parts Ordered!!!
  4. DrawBot - The Breakdown
  5. DrawBot - Parts Shipped!!!
  6. DrawBot - What would you draw?
  7. DrawBot - Giant Unicorn?
  8. DrawBot – The Assembly, Part I
  9. DrawBot – The Delivery, Part IV
  10. DrawBot – The Assembly, Part III
  11. DrawBot – The Assembly, Part IV
  12. Now Simple Series will also add the series list to RSS feeds too!
  13. ZOMG! Simple Series is going viral!
  14. DrawBot – The Delivery, Part VI
  15. DrawBot – The Assembly, Part V
  16. Anti-Virals
  17. DrawBot – The Assembly, Part VI
  18. DrawBot – Printed Parts
  19. DrawBot – The Assembly, Part VIII
  20. DrawBot – Printing!
  21. DrawBot – Why are you crying?
  22. DrawBot – Calibration
  23. DrawBot – Pen Selection
  24. DrawBot – Drawing Success(ish)!!!
  25. DrawBot – Onwards and Upwards!
  26. Plugin Considerations
  27. WordPress Plugin: Easy CC License
  28. Restarting a Stalled DrawBot Drawing
  29. TSP FTW!
  30. Speedier DrawBot Drawings
  31. Two new DrawBot links! And an update!
  32. Another Drawing Robot!!!
  33. The biggest inkjet printer ever
  34. The Eagle Has Landed
  35. I think I know what I want to draw next...
  36. This project is not going to overengineer itself
  37. Overengineered Spools
  38. Overengineered Bolt Endcaps, Case Holder
  39. DrawBot - A Tour!
  40. Building an Arduino Drawing Robot - On The Cheap
  41. DrawBot - Printed Parts Tour
  42. Simple Series WordPress Plugin Update
  43. Apparently WordPress.org serves up even more delicious download stats
  44. OCD Plugin Stats and the WordPress.org Statistics API
  45. How to add a custom button to the WordPress Visual TinyMCE Editor
  46. A Study of Drawing Robot Pen Holders and Design Considerations
  47. Drawing Robot Pen Holders, Calligraphy Pens, and Thought Experiments
  48. Ideal Qualities in a Drawing Robot Pen Holder
  49. Enough talk! Finally a pen holder!
  50. DrawBot Pen Holder Post Mortem

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