Messages

11

General Mach Discussion / Re: cuts are off a bit

« on: January 29, 2008, 09:59:43 PM »

OK, tried putting G40 in the start of my code saved on the controller computer, didn't change anything. The router also jerks while cutting circles or arcs, which makes me think it could be a mechanical issue, but I tried generating a circle from one of the wizards in mach, and it seemed to run much smoother, but it also had a bigger radius as the mach wizard just sat there when I tried to make the diameter 3.5 like in this gcode.. So I'm back to wondering if it is the computer or some software issue.

The machine jerks like this whether or not it is actually cutting. I ran it while 'cutting air' and it didn't change the jerking action.

I have attached the GCode I am using, I don't know what you mean by xml. ?

I would really like to get this thing running perfectly (to my standards anyway), I have a lot of time and money wrapped up in this project. I appreciate the help!

12

General Mach Discussion / Re: cuts are off a bit

« on: January 28, 2008, 02:58:07 PM »

I did allow for the cutter radius in the code, but in Mach, I'm not sure how to set up the offsets, nothing is different from the normal setup of the program. I went through the manual, may have missed something, but I'm confused. I'm using a 1/4" straight end mill to cut through MDF.

13

General Mach Discussion / cuts are off a bit

« on: January 28, 2008, 04:55:41 AM »

I cut out some router clamps out of MDF using mach, the outside dimensions were about 1/16" too big, and the inside circle cutout was about 1/16" too small in diameter. I checked the g-code and it looked dead on (the farthest points away from each other were exactly what I designed). I've been through the steps per axis over and over and they are correct. I can't tell if it is a mechanical problem or software. Is there a way to compensate for this in mach?

I cut a few other things as well, and they all are off about the same.

Thanks!