Widebelt Tracking Issue
8/17/22
I recently bought a used Grizzly H2934 that had been converted from pneumatic tracking to electric eye tracking. I’m having trouble with the second head tracking properly. When I got the machine, the first rubber roller was warped so I redressed both rollers which helped a lot. The front head is now tracking properly and oscillates as it should but when I put a belt on the second head, the belt tracks right off the roller. I’ve tried adjusting the eye to compensate and have tried both sides of the oscillation adjustment on the arm and can’t seem to get it to properly track back and forth. It seems as though there isn’t enough adjustment in the arm to make it bounce back and forth between the eye but I can’t seem to figure it out. The front belt tracks great but the second doesn’t. Any ideas?
8/17/22 #2: Widebelt Tracking Issue ...
Kord,
I am unfamiliar with your machine and the way it is setup.
I was just going to mention that the electric eye on my SCM widebelt has to be really clean or the machine won’t track at all on the second belt.
8/17/22 #3: Widebelt Tracking Issue ...
The eyes are clean and when I put my hand in front of them they rotate the arm so they look as if they’re functioning properly
8/17/22 #4: Widebelt Tracking Issue ...
Some belts are too thin to block the eye. Take a can of aerosol black paint and paint the inside of your belt for an inch from the outside edge and see if that helps.
8/18/22 #5: Widebelt Tracking Issue ...
I painted the ends of the belts and that hasn’t helped either
8/18/22 #6: Widebelt Tracking Issue ...
have you tried a different belt? or switching direction of the belt
8/18/22 #7: Widebelt Tracking Issue ...
Try placing a piece of scotch tape over the eye. I've done that on numerous different machines and it always works. Was given that advice a by a 3m sales rep may years ago.
10/16/22 #8: Widebelt Tracking Issue ...
Website: http://www.kovatechcnc.com
Theres a couple of things. 1 make sure your belts are as parallel as they can be (not conical. If they are too coned then the belt can runaway faster then the eye can react. (not common but it does happen) the other two things is to see it there is a sensitivity adjustments on the photo cell for it to capture quicker, that may help and as secondary opetion you can open up the flow control valves however the trade off there is that youll get very zig zaggy scratch pattern on your woof that look the pattern on Charlie Browns shirt.