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1

General Mach Discussion / Mach3 origin off on a circle

« on: July 17, 2021, 08:49:43 AM »

For reference, I'm using Mach3 version R3.043.062.

When I draw a simple circle with the center of the circle at origin at X0, Y0, Z0 and load the G-code to Mach3 on my engraving CNC the center of the circle is no longer at the X0, Y0, Z0 coordinate.   I can run the same code on my Tormach which also uses Mach3 and it works correctly. If I draw a square in the same position, it works with no trouble. 

I've been using Mach3 for better than 15 years and never run across this before.  I even removed and reinstalled Mach3. 
I thought about trying a different version of Mach but I'm running a SmoothStepper board and it calls for this version.

Here's a copy of the code:
N1 G00 X0. Y0. Z0.1
N2 Y0.75
N3 G01 Z-0.02F5
N4 G03 I0. J-0.75F30
N5 G00 Z0.1
N6 G00 X0 Y0

I've attached a picture of Mach3, note the origin of the circle in the tool path window.
I'm really stumped on this one.
Any ideas?

2

General Mach Discussion / Cutting inside or outside the line??

« on: January 25, 2011, 09:27:29 PM »

I'm sure this question has been answered before but I haven't been able to find the answer.
I'm trying to designate which side of the line my cutter follows.  Example, a 1" x 1" square.  I want to be able to have the cutter stay outside the lines so once the square is cut, The measured part still reads 1.000 and not .875 using a .250 cutter.  I'm running a licensed copy of Mach3 and I'm trying to use the old version of Lazy cam to generate my G-code, (it was free!)  I'm beginning to think I need to purchase a g-code generating software as I'm just not having any luck figuring out the old version of Lazy cam.
Any help would really be great.
Thanks.