Turing Tumble Ball Reloader
thingiverse
I take no credit for this work. These files, as well as the text below, are 100% the work of Paul Boswell, creator of Turing Tumble, a marble-powered computer. Find these files shared publicly on his website: https://community.turingtumble.com/t/challenge-3-ball-sorting-reset-system/90/21 "I made something like the drinking straw idea several of you suggested. You push it down over a ball and the ball pushes by the rubber band, but doesn't come back out. Keep pushing it over balls to pick up more. See how many balls you have in the loader by looking through the holes in the side. We're making injection molds for this and will have it available on our website, but it won't be ready for at least a few months. In the meantime, 3D print your own using the following parts: Rubber band: The rubber band is a #31 size (2.5" long, 1/8" width, 1/32" thick). Find it in pretty much any pack of assorted rubber bands. I have two options for you. If you have a 3D printer with a dual extruder, print the whole thing in one shot using PVA for supports, and then wash the supports away afterward. If you have a single extruder (most 3D printers are like this), probably need to print it in two sections. Otherwise, it would be very difficult to clear out the supports inside the tube once it's finished printing." Here it is in action: https://youtu.be/nk-Kg_-Rzk8 I printed both halves separately on my Ender 3. I used supports for the rubber band holders - but a nicer printer might not need them. Orient it so the holes lay flat on the bed.
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