????. What version of Rep-g are you using? Since version 24, the homing has been moved to the firmware and is not in any way in any profile file on the PC.
In other words, we used to set the Z height and things in the start.gcode.
Now since version 25, the start.gcode has the command
M132 X Y Z A B (Recall stored home offsets for XYZAB axis)
Which reads them from the firmware (also seen in motherboard preferences).
You should use the calibration script to set those values.
Note, using stock firmware on a modified bot, you will not hit the Z limit switch as the firmware has a timeout. The trick is to double up the Home Z command in your start.gcode and the calibration script.
G162 Z F500 (Home Z axis maximum; go until reaching the end stop.)
G162 Z F500 (Home Z axis maximum; go until reaching the end stop.)
G162 Z F500 (Home Z axis maximum; go until reaching the end stop.)
Then it will actually hit the endstop and record the correct distance.
But beyond that, the even smarter thing to do is not use the stock firmware and use the new Sailfish firmware which solves the timeout and ads tons of features and performance:
http://www.thingiverse.com/thing:32084
Again, hands down, this is the single best upgrade you can do.
sockles, 20 Nov 2012 03:45
