hello everybody !
I am new on this site (and I do not speak fluent English, sorry if i made a mistake or if i'm not easily understandable)
i've been looking to make my polargraph for months and now i have all the materials under my hand, mostly recycling from other projects.
like sandy says there's lots of different ways of making a Polargraph machine, so there is mine up to now;
_i use a arduino uno with a low cost adafruit shield v1 like this one :
_for the firmware and the controller, i use the 2016-03-29 version i get from github long time ago.
_ the motors are 2 nema 17 200step/rev 12v
_and for power supply i'have a simple recycled 12v 2A
I have two problems, the first (which must be related to the second... maybe) the motors are jerking and making some weird noise
and more important the shield become hot quickly ... i don't find my mistake and after two days trying, i really need some help