Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: millman on October 16, 2014, 07:05:36 PM
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Hi- I'm new to the system. Trying to turn a simple diameter using the mach turn wizard. I am in diameter mode and absolute positioning.
I set my clearance to 0.012", but the wizard doubles the amount to 0.024" in the G code.
EXAMPLE X start is 0.755 X end is 0.725 Clearance is 0.012
When the code posts it shows the X position as 0.779 instead of 0.767
When I run the program it also cuts double and my part ends up at 0.695
It's clear that X is travelling twice as far as it should, but I can't understand why.
Thanks in advance for any help
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When in Dia mode your clearance in code would be represented by double the value you enter. It will only move the distance, on the X axis, you enter but on the Dia it will be twice the value.
Maybe I am misunderstanding what you are meaning ?
Hood
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Hood,
Thanks, I finally came to that conclusion- maybe in the coding it is adding the clearance to both sides of the part. I was still getting the double cut error, and after trying about everything by trial and error, I found 2 issues
1. If Jog is turned on it wants to cut double
2. If backlash compensation is turned on it seems to double the backlash value of X when in diameter mode.
Once I turned those 2 items off I was getting cuts accurate within the range of the machine back lash. My next plan ( after resting my feet) is to cut the X axis backlash setting in half and see if that works.
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Are you using an external controller or the Parallel Port?
Hood