Let the fun begin !!! ???

[Clive S]

Paulro The homing with the am882 drives is a doddle all you need is two inductive switches like this : http://www.ebay.co.uk/itm/DC-3-Wire-...-/390880485798 mounted one each side and adjusted so that they both trip at the same time when the gantry is square.
Then set homing slaved axis in Mach3 X with A (ask how to do this nearer the time) what happens then is when the home button is pressed the gantry will move to the end with the switches on and trip the switches. Then the gantry will back off the switch until it trips again. You can adjust the gantry square by adjusting one of the switches a little.
The machine will then make sure the gantry is squared every time you home the machine.

When using the AM882 drivers you wire up the stall detect (fault) terminals so that if one motor stalls it estops the router and saves any damage by racking the gantry. Hope this helps. ..Clive