polargraphcontroller 2.4.0
Polargraph v1.3.1
Speed 1722
Acceleration 1242

New to the Polargraph and have been experimenting with how it works, settings and different drawing techniques.
I noticed when i was trying out some simple geometry vector drawings that the stepper motors were very slow tracing the shape, it also developed a jitter that meant that the line was shaky. From what i can see the gondola is shaking when it is drawing, which it haven't seen before. Also the one of steppers is making an odd electronic squeaking noise that is new, seems related to the issue. Before that I had been trying a drawing that was vector traced by Illustrator, which had a lot of very intricate detail which was working the motors hard.

To try and solve the issue, i have re hooked it to the controller to reset the settings in case that was the issue, but the only thing which i have been adjusting is the speed and acceleration. 800 seems to be the default.

Also i have noticed that when it lifts the pen and moves it is very smooth and quick, but as soon as it starts drawing again, the issue persists.

Has anyone come across this issue before?

CM

Aha, I don't even know what hardware you're using, which arduino, which driver? What firmware? Weird electronic squeaking or whining (bleeping?) could be microstepping noise. It's normally a good sign.

The straight line drawing algorithm in polargraph isn't very clever, so it does tend to jitter, but I guess that does look a little worse than I'd expect.

Sn

I'm confused about how it fixed the problem 🙂 But all's well that ends well!

sn