Looking to build a drawing robot with my 9yo daughter for a science fair. How and where do I get started? (programming.dev)

submitted 6 days ago by nieceandtows@programming.dev to c/asklemmy@lemmy.world

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Thinking of a robot which can draw basic shapes upon command. Ideally, a voice command, but if that's too complex, we can start off with a different type of command. I'm a python programmer, but have zero experience with adruino and the like. Please give me some advice to help me get started.

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[-] nieceandtows@programming.dev 2 points 6 days ago

I'm talking a very basic robot using breadboards, icecream sticks, motors, an adruino or something like that, and making it move the arm in preconfigured motions, like circle or square, etc. Nothing fancy.

[-] FredFromWyoming@lemmy.world 3 points 6 days ago

It might be a good idea to look at a pantograph for something like this, you could probably build a simple linkage out of popsicle sticks and use a couple of servos to control it. It would take some trigonometry to get it right but it's probably the easiest to build with those materials

[-] FredFromWyoming@lemmy.world 1 points 6 days ago

Potentially you could even make two "arms" one with potentiometers to measure the angles at different points on the linkage and a second with servos set to reproduce those angles. So a person can trace out an object or drawing on the first one, then the second one shadows/reproduces it. It would simplify any code substantially and would probably be more impressive to the judges

this post was submitted on 18 Dec 2024

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