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Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!
jsecondo

Color changing gondola V0.5

by jsecondo May 1, 2018
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Did you get this to work? Intruiged!

Didn't have 2 servos so i used one to rise the tray. Markers were in place and changed colors manually. Needs redesign to balance the weight.

Nice. And how did you tension the belts for good drawing? I’m trying to perfect my technique.

Had to hold the gondola next to the up/down servo holder since if I did it from the other side the pens would be in an inverted position and ink doesn't flow well.

Tried holding the gondola very close to the servo holder and it balances a bit. Tried to hold it from the corners, it's more stable but starts to affect the verticals of the drawing next to the sides.

Haven't worked with it in a while.

It was like a design test in Tinkercad. Liked how the pen changer works and it's easy to program a couple of gcodes to do the pen changing servo activation. The pen holder itself con be reworked to hold more colors. (keep in mind that when rotating the holder, the gondola must be in the up position or you'll end up with side lines in each color change). And if you add colors to the changer make sure that only one of the is in touch with the paper at one time (or maybe the idea could be to use it with colo pairs.....mmmm....next idea?)

Sorry for my english, it's getting rusty with the time.

Good luck.