The steppers just won’t go when in parallel. My steppers are rated at 2A, which would imply 1.6V for the drivers I have. I can’t get that high. My power supply is running at 12V. For the moment, I’ve put one on the second extruder. So, 3 questions.
- Has anyone run steppers in serial? Have any problems with it?
- Doesn’t look like any of the Pololui drivers can handle these steppers I have. Would any drivers solve this problem?
- Has anyone (i.e. Martin) thought of driving the right lead screw with a belt from the top of the left lead screw? It seems like that may work, then there would not be any synchronization problems, and 1 less motor needed (I could use it for a second extruder!) I have a couple of inches of lead screw above my top Z carriage, maybe I’ll see what I can butcher up. I write software, I’m not a ME… Maybe just attach a gear right above the top bearing, which would minimize the cantilevered axial load.