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. 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, Part II
  13. DrawBot – The Delivery, Part III
  14. DrawBot – The Software, Part I (and an existential conversation)
  15. DrawBot – The Assembly, Part II
  16. DrawBot – The Assembly, Part III
  17. i find i want to add more posts in some random series, just so i can use my new plugin
  18. Now Simple Series will also add the series list to RSS feeds too!
  19. ZOMG! Simple Series is going viral!
  20. Simple Series - Half-Life; Market Research
  21. DrawBot – Printed Parts
  22. DrawBot – The Operation, Part I
  23. DrawBot – The Assembly, Part VIII
  24. DrawBot – The Breakdown, Part II
  25. DrawBot – Why are you crying?
  26. DrawBot – Calibration
  27. DrawBot – Pen Selection
  28. DrawBot – How to Recover from a Stalled Print!
  29. DrawBot – Drawing Success(ish)!!!
  30. DrawBot – Pen Selection, Part II
  31. DrawBot – Another Successful(ish) Drawing!, and an Update
  32. Plugin Considerations
  33. WordPress Plugin: Easy CC License
  34. Restarting a Stalled DrawBot Drawing
  35. TSP FTW!
  36. Two new DrawBot links! And an update!
  37. The biggest inkjet printer ever
  38. Why do DrawBots draw on walls?
  39. All New Polargraph on the way!!!
  40. Every Body Needs a Skull
  41. I think I know what I want to draw next...
  42. Overengineered Spools
  43. DrawBot - A Tour!
  44. Building an Arduino Drawing Robot - On The Cheap
  45. Simple Series WordPress Plugin Update
  46. How to add a custom button to the WordPress Visual TinyMCE Editor
  47. A Study of Drawing Robot Pen Holders and Design Considerations
  48. Drawing Robot Pen Holders, Calligraphy Pens, and Thought Experiments

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