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Author Topic: Mach4 Z axis half working  (Read 728 times)

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Mach4 Z axis half working
« on: January 02, 2021, 08:11:40 PM »
Hi guys
I have been using my CNC with Mach3 for two years without issues. It is a Shapeoko XXL frame with limit switches, an ESS controller and a Super PID for my router.
I bought a 5.5 watt laser, mounted it to my Z axis and purchased a License for Mach4 Hobby (Version, Build 4517) because of the Laser capabilities. I have the laser working fine it just needs a bit of tweaking.
I want to use Mach4 for my main software for carving as well.
A couple of my issues are:
1: I can't seem to home the machine more than once without it adding or subtracting to the machine zero coordinates. If I turn the machine on and home it, almost everything is fine. If I move the machine X Y and rehome it, everything is messed up. I have to shut the machine down and restart my controller and Mach4 and remember to just home the machine once.
2: I move the gantry and set my X Y to zero and I have a touch plate that is .06 inches thick. I can touch and have it back off 1" no problem so now X=0 Y=0 and Z=1.06. The issue is if move away from the zero coordinates and I hit go to work zero, my Z axis should retract in a positive but instead it goes negative towards my table. When I jog manually, everything moves in the right direction. X positive is left to right, Y positive is front to back and Z positive is moving away from the table.
Is there a script that can be changed?
Thanks in advance. I have about 40 hours into researching this and it's time to ask for help.

Re: Mach4 Z axis half working
« Reply #1 on: April 13, 2022, 02:34:33 AM »
I have come across the same problem with the Z axis moving down towards the table after probing, I have spent days trying to sort but nothing seams to work. Did you work it out? if so would you be willing to share how you fixed it.
Any help would be much appreciated