Re: Tuning?

I had also noticed carriage stutter/shaking in some cases, which I tried to capture in the following slow-mo video: Chris, is that similar to what you saw?
Windell should know better, but my initial guess was that it might be a consequence of trying to follow the irregularities in human drawn lines since the carriage otherwise moves super smoothly when translating with the pen up.
I am also going to see if tightening the string and increasing the motor current has any effect.