Category Archives: cams

Learning Through Play Hack Chat with Greg Zumwalt

Join us Wednesday at noon Pacific time for the Learning Through Play Hack Chat!

You may think you’ve never heard of Greg Zumwalt, but if you’ve spent any time on Instructables or Thingiverse, chances are pretty good you’ve seen some of his work. After a long career that ranged from …read more

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Posted in automata, automaton, cams, gears, Greg Zumwalt, Hack Chat, Hackaday Columns, mechanism, pulleys, toy | Leave a comment

7-Segment Display is 3D Printed and Hand Cranked

[Peter Lehnér] has designed a brilliant 7-segment flip-segment display that doesn’t really flip. In fact, it doesn’t use electromagnets at all. This one is 3D printed and hand cranked. It’s a clever use of a cam system to set the segments for each digit (0-9) makes it a perfect entry in the Hackaday 3D Printed Gears, Pulleys, and Cams contest.

We find the nomenclature of these displays to be a bit confusing so let’s do a quick rundown. You may be most familiar with flip-dot displays, basically a dot-matrix grid of physical pixels that are black on one side and …read more

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Posted in 3d Printer hacks, 7-segment display, cams, contests, gears, mechanical display, seven segment display | Leave a comment

New Contest: 3D Printed Gears, Pulleys, and Cams

One of the killer apps of 3D printers is the ability to make custom gears, transmissions, and mechanisms. But there’s a learning curve. If you haven’t 3D printed your own gearbox or automaton, here’s a great reason to take the plunge. This morning Hackaday launched the 3D Printed Gears, Pulleys, and Cams contest, a challenge to make stuff move using 3D-printed mechanisms.

Adding movement to a project brings it to life. Often times we see projects where moving parts are connected directly to a server or other motor, but you can do a lot more interesting things by adding some …read more

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Posted in 3d printed, 3d Printer hacks, automata, cams, classic hacks, contests, gear box, gears, Hackaday Columns, Mechanisms, Original Art, pulleys | Leave a comment