Lightobject.com Support Forum

Hey all,

i have been adjusting mirrors for hours now but i cannot get this to work properly: My diy laser with lo x7 controller
does not work the way it should. When it comes to cutting there is a gap between start end end point. (i cannot see something like
that when engraving) I checked squareness twice and everything looks good to me. Can anyone point me in the right direction?

thanks
tm

To me it looks like backlash. check the thread that says cutting circles or something like that by Kev20009

Fernando

Try your rising edge to falling, hope this helps you, kev

Hi, I had similar issues.

If your steppers don't have flats file them on.
If your belts don't have a tensioning system make one

If you can find a way of measuring the tension in your belt and finding out what the manufacturers say then tension for that belt should be then tension to that specification. Some say that tensioning the belts can wear your stepper bearings out but I'd rather have accurate cuts and replace the steppers once in a while.

This will be your y gantry that is causing you problems. It's moving from A-B and back to A but because there is slack in the belt of the stepper cog is slipping the return to A is not the same place.

i have the same problem. this couple days ive been braking my head and no luck. i have read every post in the forum with the same problems and nothing work for me. even made the test that marco uplod for speed and acceleration and they came just fine.. any suggestions? the acceleration test was made at 100mms, and on the first pic you can notice where the problem is..

Maybe the material is moving. Had the same issue. Now I use a few strips of thick aluminium bar and sticked some anti slip rubber on it, and placed it against the material.