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Messages - Segovis23

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General Mach Discussion / Re: Mach 3 Demo Scale issues
« on: February 11, 2019, 10:59:08 AM »
Thanks I will try that! Appreciate your time.

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General Mach Discussion / Mach 3 Demo Scale issues
« on: February 08, 2019, 12:46:09 PM »
 I have read many similar posts but none that helped solve our problem. So I am hoping someone can point out what we are doing wrong.
 I have little cnc experience. Everything I know, I learned online in the last month.  I have a D&M 5 lathe with no oem info. I am using an Ohmikron stepper control with micro-steppers (3.5a motors).  This setup was gifted to us with no accompanying documentation.  I am using Mach3 on Windows XP to only control the XZ axis. Spindle is manual. I have the gcode, made with Fusion 360, for the part we are cutting. 
 I ran the code on Mach3 Demo. It cut the piece out in about 25% scale in Z and 200% in X . I read some posts to see if anyone else's solutions would help. We cannot adjust the scale for the axis. There is nothing in the Toolpath window and clicking the Regen Toolpath button does nothing.
 I adjusted the steps per. I raised them incrementally up to 16,000 from 2000 and then worked back down to 9600. The safe position return seemed to match up with the gcode best here. We cannot get the lathe to come apart to do the math for real (it's old), so we were basically trying to get lucky. At one point I was able to cut the piece at about 25% scale in X and Z. Made a few steps per adjustments and then was able to cut one at about 85% scale but was not able to improve it or even replicate it.
 We have had the code gone thru twice and it is definitely ok. So it has to be in our settings. Every time I run the code, the axis run out of position or it cuts in the wrong scale. It never seems to run the same way twice either.  I have tried setting the part position in multiple places, multiple times, I have tried adjusting the motor tuning. I just cannot get this to work right and I don't want to buy Mach3 until we see it work. I understand we are running before we know completely how to walk but I learn quicker hands on.
 Any help in the right direction would be appreciated?
 

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