Hey everyone, been using cnc zone for years. But this is my first time posting. Hoping to get a little help if possible. I'm on my second cnc build, in which I downsized from a larger cutting area to smaller more rigid setup. The machine is already built and has been used on a v-inlay project, and milling small brass parts. But I was having trouble losing steps when running at higher speeds. I walked away from it for some months, was just very busy with stuff, and didn't need it for a while. So I'm getting back to needing to run some projects and I wanted to figure out what was going on, so I don't waste material and so I can be more confident in walking away with out having to be concerned about missing steps.
So getting back to the issue, I'm running nema 23's 425oz and my issue is anything over 50 ipm the motor stops turning, skips, and makes an aweful grinding noise.
I have checked connections, removed motors from the machine to make sure nothing is binding. Which I was able to turn all ballscrews easily by hand on all axis and for the entire length of travel both ways. Iv tried adjusting microsteps, along with trying different motor tuning in mach3, and every time once I hit between 70-80 ipm is stops, skips and that aweful grinding sound. The machines rigidity is to the point where I'd like to be running 100 plus ipm for woodworking projects, and a bit faster for non ferrous milling. Along with being able to rapid more quickly.
Here is a like to the electronics packa ge I bought 5 years ago.
https://www.automationtechnologiesinc.com/products-page/stepper-nema23-3-axis-kits/3-axis-nema23-cnc-kit-36v9-7a425-oz-inkl-4030/
If anyone has any suggestions as to helping to figure this out it would be greatly appreciated.
Thanks !