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| Crayonbot Does T-Shirts |
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I made an alternate non-motorized pen gripper and bolted a sharpie in.
One screw holds the pen in place and the other is a stop so that the pens
stick out the same distance if I change colors. I set up a bot config
at 100x100 B&W with no pen swaps.
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When looking for something to render, you can never go wrong with
The Teapot.
My wife laughed at the tea-shirt pun and I pretended like
I was clever and had intended it all along.
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The sharpie lays down a lot of ink. I ironed these after they dried
so they will hopefully hold up in the wash. Building a bot specifically
for making T-shirts would only require 3 servos since it would need no
gripper or turret.
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Rendering a greyscale image with sharpie dots requires some image
tweaking beyond what my robot's webcam interpreter can do.
Here, I resample an image to 100x100 and convert it to B&W using
a halftoning filter.
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