Pictures of things made in Home Shop CNC

I think I would like to try my hand at Robot Competitions but have not run across any in the Austin Tx area. Plus a little intimidated by the probable cost to build then repair/maintain
 
3D tool path FAIL

This is a test of a 3D tool path to make a crimping die for a project. On the final finishing pass something failed and the machine went crazy. No harm done because we were testing in UHMW. Glad it wasn't tool steel. :cautious: Still trying to figure out what the problem is. Wading through 41,000 lines of code is a bit of a chore, but I know it's in the last few thousand lines. :confused 3:

 
Nobody writes 41,000 line Gcode files by hand, right?, so whatever it was that wrote the code barfed it up.

It might be good to run the Gcode in a software previewer to see if it simulates as bad. If it doesn't simulate as bad, it might be an electrical noise spike or something confused the machine. You could do a second piece if you have the plastic to test it on. See if it goes crazy at the same spot.
 
MontanaAardvark said:
Nobody writes 41,000 line Gcode files by hand, right?, so whatever it was that wrote the code barfed it up.

It might be good to run the Gcode in a software previewer to see if it simulates as bad. If it doesn't simulate as bad, it might be an electrical noise spike or something confused the machine. You could do a second piece if you have the plastic to test it on. See if it goes crazy at the same spot.
Click to expand...

I found the problem, it was a botched setting in the post processor setup. This is the first 3D part we've tried, so it showed a bit issue in the software, it didn't like the YZ arc move. That will get fixed as soon as I have time. Just ran a couple of perfect parts, I'll post pictures later.
 
I notice that the first one had a little notch in either side, right in the middle at the low point of the concave shape, and this one is straight in the same places.

Just a coincidence or part of the problem?
 
MontanaAardvark said:
I notice that the first one had a little notch in either side, right in the middle at the low point of the concave shape, and this one is straight in the same places.

Just a coincidence or part of the problem?
Click to expand...

I'm not sure. I think that was part of the original problem. We need to do a lot more testing on some different parts to find other anomalies. At the same time we are learning how to setup 3D parts in Fusion 360. Next is full 4 axis profiling :)
 
You must log in or register to reply here.
Back
Top