Search found 23 matches

by mtsinc
Thu Apr 26, 2018 1:47 am
Forum: Path/CAM
Topic: Feed Rate
Replies: 23
Views: 2379

Re: Feed Rate

Personally, I don't care to do my programming in Babylonian units, but that's apparently how MIT designed it. But I'm not sure how to tell a CNC machine to feed in seconds, since there aren't any gcodes for that that I've ever heard of, and the g20/g21 documentation is for in/cm, not minutes/seconds...
by mtsinc
Wed Apr 25, 2018 2:07 pm
Forum: Path/CAM
Topic: Feed Rate
Replies: 23
Views: 2379

Re: Feed Rate

grbl-post. But I don't know of any standard gcode implementation where gcode feed rates are per/second. All I've seen is per/minute. The fact that the tool GUI itself defaults to per-second is anomalous.
by mtsinc
Tue Apr 24, 2018 12:52 pm
Forum: Path/CAM
Topic: Feed Rate
Replies: 23
Views: 2379

Feed Rate

I've been trying to get FreeCAD (V0.17) to generate gcodes for my CNC mill, and, alas, finding new ways to crash it. For my initial experiments, I set the horizontal feed rate for my tool at 20 mm/s, but when I went to run the program, the mill was moving far too slow. I went back and checked the ra...