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General Mach Discussion / Re: Set up and configuration???
« on: February 04, 2010, 12:02:46 PM »
The way Mach does the homing may well be different from your last programme and that is the reason your are off. What Mach does is it moves onto the switch then reverses and once the switch again closes it will stop and set that as the home position. Other things that can affect the distances are homing speed and also motor tuning so even if your last programme homed in the same manner you may have a faster/slower homing speed in Mach or Faster/Slower Velocity or acceleration in Motor tuning.
If you cant move the position of the offset to suit where Mach homes to then you could measure how far off it is relative to home and use that value as a Home Off value. What would then happen is Mach would set the value you have put in Home Off as the distance you are away form machine zero. So for example if you measure Mach is short on the X axis by 2.25mm you would put a home off value of -2.25 for the X. You would then be on position when you commanded the X to go to your 200 position.
Hood
If you cant move the position of the offset to suit where Mach homes to then you could measure how far off it is relative to home and use that value as a Home Off value. What would then happen is Mach would set the value you have put in Home Off as the distance you are away form machine zero. So for example if you measure Mach is short on the X axis by 2.25mm you would put a home off value of -2.25 for the X. You would then be on position when you commanded the X to go to your 200 position.
Hood