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Mach4 General Discussion / Mach4 Homing and Machine Coordinates

« on: July 14, 2021, 11:16:18 AM »

So Mach4 uses machine coordinates to compare with the values in the configure dialog box's Soft Limit columns min/max.

If I turn a Taig mill on with no home switches installed, position x,y,z at a consistent min position and hit the zero buttons and then the Reference All Axes (Home), get the pop up dialog about setting home; the machine coordinate can be negative and apparently the soft limits min/max values are going to be compared to those negative values.  So now Mach4 thinks the stage is way outside the soft limits, and both the negative and positive jog buttons both go in the same direction -- I guess to only allow you to get it back in range. 

If you quit Mach4 and restart, the machine coordinates are zero and the soft limits work correctly. 

So is there someway that I'm missing here to "Reference All Axes (Home)"?  Has anyone else run into this and do they actually quit and restart Mach4 each time they turn on their machine with no homing switches?  I'l make some brackets and put on homing switches here soon, but isn't there some way to just zero out the machine coordinates short of restart the app?

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Mach4 General Discussion / Starting Mach4

« on: September 05, 2020, 08:58:10 PM »

I have the Taig control for a ballscrew mill with encoders. The motors are just sitting on the floor hooked up not yet attached to the new mill. 

I'd like to motor them with Mach4.

So I'm looking at this slightly out of date video (config dialog is different, but the same stuff is there just under tabs) https://www.youtube.com/watch?v=IXuuGRACU1I
Turning things on, the steppers grab. They have power. Since I don't have limit switches, I followed the video and turned on home in place for XYZ. I disabled A.  I put 34 into the feed rate G01 like the video has. 

Now I want to have it jog. Nothing.

What do people do to know Mach4 is talking to the Taig box?