It’s also common to home only X and Y, and not home Z at all.
It is absolutely normal to home Z in the positive direction for routing and milling. There are many cuts where you need to be able to cut into the spoilboard, so a negative Z limit at the spoilboard would make no sense. Will dip BELOW zero to turn on the switch ( digging into the spoil board ) and then go backĭon’t think that’s how this one is exactly right here.
I’m starting to think that maybe limit switches aren’t such a good deal. $132=200.000 - Z max travel 200mm ( only homing and soft limits ) $131=500.000 - Y max travel 500mm ( only homing and soft limits ) $130=500.000 - X max travel 500mm ( only homing & soft limits ) $122=20.000 - Z accelleration 20 mm per second squared $121=20.000 - Y accelleration 20 mm per second squared $120=20.000 - X accelleration 20 mm per second squared $38=10 - spindle encoder 10 pulses per revolution
$26=250 - homing debounce 250 milliseconds $23=7 - Homing cycle direction = 0b111 ( 1 for all axis’s ) $22=1 - Homing cycle enabled ( requires limit switches ) $11=0.010 - junction deviation aka cornering speed $10=3 - status report = machine position and work position $3=6 - Axis directions: Reverse Y, reverse Z Just for yuks, here’s the readout of “$$” from the controller: My problem now is …what about the Z axis? How do I tell it that “zero” isn’t down to the build plate, but rather down to the top of the spoil board? Next step will be to route it on cardboard or maybe MDF - before I ruin my nice sheet of 1/8" aluminum. I’ve got it properly tracing out the part - with no bit installed. Doing the design with FreeCAD and controlling the router with Universal Gcode Sender.
I’m doing a project with my 500W 3018 router.
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