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General Mach Discussion / Mach 3 wants to start much lower than ZERO, tool offset IS turned off

« on: October 28, 2012, 07:33:03 PM »

Hey guys,

Can someone please enlighten me on what I might be doing wrong.  I'm using mach 3 with Vectric aspire.  It's been a couple months since my last cut and suddenly it has a mind of it's own.  I touch off the surface of the material with Z and Zero it out.  I'm not using any tool offsets and I did verify that it is turned off.  When I start the run, Z is plunges down MUCH further than it should be.  It should be going down to my Safe Z (0.2) and going on into the program from there. 

Anyone got any ideas?

Thanks.

2

General Mach Discussion / Problems with Ref All Home with Dual drive setup

« on: August 09, 2012, 10:28:16 PM »

Hey guys,  let me first say that my machine runs just fine when cutting.  This problem only exists when trying to do a Ref All Home.  I run a dual drive Y axis  (Y & A).  When I do R.A.H., only the Y axis is searching for home.  'A' isn't even turning at all.  It's like it's ignoring the Slave axis function and my gantry starts to twist.  I have to kill it so it doesn't stall out my motor.  What am I doing wrong.  I can't seem to find what I'm missing here.

Thanks for any help on this.

3

General Mach Discussion / Always need to zero "Z" a 2nd time, Why?

« on: July 13, 2012, 03:52:12 PM »

Hey guys,  Mach 3 runs great for me with 1 exception.  It does this every time.  I always need to zero the Z axis a 2nd time.  For example, when I touch off the top of my work piece, zero out Z on the DRO, then start the run cycle, Z will go from about 100.000 or so instead of from its relative location from where I touched it off.  I repeat the whole process again,  touch off, zero out DRO....etc..  and it's fine.  Always takes that 2nd time.

Any ideas on why?