Need help

[Dave Spitzer]

I have upgraded my Joe's 4x4 to a castcnc. My test run picture 182 came out good (far left), however, test runs today "pictures 183, 184" are not so good. I've checked over belt's and pulley's but I can't find anything wrong. I'm hoping someone has seen a simular issue and can point me in the right direction.

Any help would be appreciated.

Thanks

Dave

[Jerome Stanek]

It looks like something is slipping on the CNC

[Gary Campbell]

Dave...
Check the pinion, pulley or motor to screw connector grub screws. Something is loose in there somewhere.

[Dave Spitzer]

Thanks Gary, I checked the grub screws but not very good as I missed the grub screw on the X axis motor pulley. A small pain to get to, but it was lose and was causing my problem. All works well again.

Dave