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« on: November 13, 2013, 08:23:42 PM »
I don't have a video but this is the way it works for me.
Z axis moves up or positive until it hits the limit switch and then reverses back down until off the switch.
Y axis moves in the negative direction until it hits the limit switch then reverses positive until it is off the switch.
X and B axis move in the negative direction together until one of them hits its limit and both motors stop. The side that hit the limit first moves in the positive direction until it is off the switch. Then the other side starts moving negative again until it hits its limit switch and then stops and reverses to get off the switch. (This sequence is dependent on which side hits its limit first)
This is the Ref All Home script that I am using and it sets the work and machine coordinates to "0"
DoButton( 24 )
DoButton( 23 )
DoButton( 22 )
DoButton( 26 )
DoOEMButton(133)
DoOEMButton(134)
DoOEMButton(135)
Notice here I am slaving the X and B axis together. If you ever plan on running a rotary axis it has to be designated as the "A" axis for the rotational feed rate to work so
I would suggest you set up your slave drive as "B" now to save problems later.
In the ESS setup screen under "Noise Filtering of Inputs" you may have to set a debounce time for the "Limits" and "Home" boxes to make it work properly.
The ESS controls the debounce now not Mach3. (Mine are set to 5 in each)
You should already have the "Motor Home/Soft Limits" ( this is where you set the ref speed and distance the drive reverses off the switch) set up in Mach3 before running the script.
Each of my axis have their own limit switch and are on separate inputs.
I probably have forgotten something since it has been 2 years since I set mine up but it would be a good idea to "Step" through the script one line at a time for safety.
Ray
DoOEMButton(135)
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