Messages

341

General Mach Discussion / Re: Jerky motion...yes I've read the other posts :-)

« on: July 01, 2008, 06:40:30 PM »

Yes, I just tried sherline and turning off all the CV things on the config page, all that has no effect whatsoever, it runs the same.

A separate question, I just upgraded my PS to 48 V from 24V and now I get limit switches tripping after a couple minutes. My motor cables are shielded but not the limit and home switch cables, do you think it's just electrical noise, emi or rfi? And the CV problem was the same with the 24V PS I just switched over yesterday to get more torque.

P.S. I don't think I tried sherline with the CV enabled, Gerry at CNCzone told me to try turning off the CV as sometimes it messes things up, so I'll go try the sherline and CV together.

342

General Mach Discussion / Re: Jerky motion...yes I've read the other posts :-)

« on: July 01, 2008, 06:01:03 PM »

Thanks, I appreciate the help. I have been using my system for about a year but nothing critical and now I'm realizing it needs some tweaking and I have no idea how to start.

343

General Mach Discussion / Re: Jerky motion...yes I've read the other posts :-)

« on: July 01, 2008, 11:33:14 AM »

What does 1/2 Pulse mode do, all my cuts come out with the correct dimentions? Here is the xml file for some reason this forum keeps saying I already have a file uploaded with the same file name so you can view it or download it from my server. Thanks for the help.

http://www.smokeproductions.com/Mach3Mill.xml

344

General Mach Discussion / Jerky motion...yes I've read the other posts :-)

« on: July 01, 2008, 03:20:03 AM »

I posted this on CNCzone today but thought I'd post it here too as I need to get my machine tuned correctly; plus I've watched some vids on youtube and now I know it's not running smoothly.

OK, I've used my cnc for a while now, about 1 year, but now I'm finally cutting my guitar stuff and I want to make sure everything is working the way it's supposed to.

When moving during a run the sound of the motors are jerky sounding and when looking at the ballscrews during the run they move in a somewhat jerky motion. Now the cuts seem pretty smooth and since I've never owned or used a CNC machine before I'm not sure if this is correct movement. So if you all can look at the video and tell me that's normal or not I would appreciate it. The sound is going to be the key as it's hard to see the motion of the machine, it's just cutting air I've turned off the router. The video is 15mb. I'll include my G-code for this particular run that you are watching to see if it's that. Its not jerky during straight runs.

Video: http://www.smokeproductions.com/cnc.avi

A little background on the machine, home built. Keling 425oz steppers, Keling 8078 Drivers, 48V 6.5A PS, Roton Ball Screws, Mach 3 V2.63, 10,000 steps per inch, 72IPM maximum and 10 acceleration for motor tuning. I just thought during a run it would run smooth during curves in a fluid motion?

After reading on here about the CV stuff I went back and took note of my CV settings: Motion Mode CV, CV Dist Tol. 180 is checked and G100 Adaptive is checked.

So what setting should I be using and is that my problem? Thanks so much in advance.

345

Video P*r*o*b*i*n*g / Webcam while running Mach

« on: February 22, 2008, 01:38:51 PM »

Not sure if this is the correct place but here it goes. Mach 3 is first off awesome. The only glitch, which really isn't a glitch, is that if I have Mach on and the machine, if I minimize Mach, let's say to open a cad program to do some work it will mess up the CNC. It reversed the Z axis when I unminimize Mach from the taskbar. Anyway, I figure that's normal as the computer is being dedicated to running a CNC machine.

SO the question I have is if I'm running a webcam as an edge finder, I got it off here from Zarul, will that affect Mach? Probably not as a lot of people are using them here. So if it doesn't affect Mach will using over my network affect Mach? I have my CNC in the garage and sometime run 3 hour programs and don't want to sit there so if I hook it up that way so I can watch the CNC from my office will that adversely affect Mach. Thanks.