5991
General Mach Discussion / Re: Mill going off centre
« on: February 11, 2013, 06:04:16 AM »
Ok so that is relying on you starting things at exactly the same position each time and unless you have a means to do that then it could be off if you lose position. Thats what it sounds like, machines that are tuned too close to the edge can often loose position, especially on 3D work as that often includes high accelerations.
You could try reducing the accel for your axes and see if that helps.
The best way to do things is have accurate home switches then Mach will know where it is in relation to them, assuming of course you do not lose position. If you homed to these switches after each part then you could be sure any lost steps during the previous run would not matter on the next.
Obviously you are not wanting to lose steps at all so maybe the acceleration reduction is the best thing to try first.
Hood
You could try reducing the accel for your axes and see if that helps.
The best way to do things is have accurate home switches then Mach will know where it is in relation to them, assuming of course you do not lose position. If you homed to these switches after each part then you could be sure any lost steps during the previous run would not matter on the next.
Obviously you are not wanting to lose steps at all so maybe the acceleration reduction is the best thing to try first.
Hood