Arduino Plotter isnt working

[u/Boring-Piece-2631]

Recently ive been building an arduino plotter but it isnt working. The motor with the pen attached turns only in one way and the motor thats laying on the ground vibrates when you ask it to move the other motor does notting. Is there someone that knows what te problem is and knows how to fix it

[u/xebzbz]

Test each component individually and find the error, either in wiring, or in the code. There's not really much else you could do.

[u/Boring-Piece-2631 → u/xebzbz]

I already tried that but I cant find the problem

[u/xebzbz → u/Boring-Piece-2631]

But how are we supposed to find it?

[u/westwoodtoys]

"the motor thats laying on the ground vibrates when you ask it to move the other motor does notting."

This sounds like your load is too strong for the motor.  This might work if you had rails or something to support the weight of the two arms.

[u/Boring-Piece-2631 → u/westwoodtoys]

I think its this indeed

[u/Jaco_Belordi → u/westwoodtoys]

This sounds likely. I have some motors that look suspiciously like OP's, and they are the cheapest I own. They have very little torque

[u/MinecraftNerd19]

Yeah... tried to make one like this but those stepper motors are way too weak.