7471
General Mach Discussion / Re: Steppers out of sync and skipped steps?
« on: February 17, 2011, 11:01:04 AM »
Hi Dan,
May be an idea to change your design at this stage so you only have two steppers on that axis and a rod joining two pulleys at the other end of the belts. Wiring two steppers in parallel and then slaving them with another pair of steppers wired in parallel will never work well. (The reason relates to the accuracy of microsteps and the difference in the size of each microstep between one motor and the next).
Incidentally, that particular axis is the Y axis and the one with only two steppers is the X axis (this becomes important later on when you may want to use your machine to raster engrave and the axis with the least mass needs to move the fastest).
Good luck with the foil idea, I suppose stranger things have happened.
Tweakie.
May be an idea to change your design at this stage so you only have two steppers on that axis and a rod joining two pulleys at the other end of the belts. Wiring two steppers in parallel and then slaving them with another pair of steppers wired in parallel will never work well. (The reason relates to the accuracy of microsteps and the difference in the size of each microstep between one motor and the next).
Incidentally, that particular axis is the Y axis and the one with only two steppers is the X axis (this becomes important later on when you may want to use your machine to raster engrave and the axis with the least mass needs to move the fastest).
Good luck with the foil idea, I suppose stranger things have happened.
Tweakie.