Welcome to the forum, Jon! Add your first name to your profile to clear the N/a in the side panel and add your location to your profile, as well.
I agree that 75 ipm is crawling unless you're using a tiny bit and it doesn't appear that's the case. Just so you can say you did when you call them back, try running it slower just to prove the point.
Does it do this in the exact same position on X and Y each time? If so then maybe it's mechanical even though you've changed out some components.
Change your XY zero point and run the same program to see if it does the same thing. Does it do this when cutting air, say an inch above the spoilboard? That would rule out the 'cutting too fast', as well.
I'm sure others will chime in but off the top of my head that's where I would start.
David
I agree that 75 ipm is crawling unless you're using a tiny bit and it doesn't appear that's the case. Just so you can say you did when you call them back, try running it slower just to prove the point.
Does it do this in the exact same position on X and Y each time? If so then maybe it's mechanical even though you've changed out some components.
Change your XY zero point and run the same program to see if it does the same thing. Does it do this when cutting air, say an inch above the spoilboard? That would rule out the 'cutting too fast', as well.
I'm sure others will chime in but off the top of my head that's where I would start.
David