Could be both those issues. If the worm was binding as it was tight and the load heavy then the grub screw could not have enough bite on the shaft.
You should carefully read the instructions that comes with the kit, and test the mount through a full 360 on both axes unloaded during the day . You can disable the limits in the handset to allow this. If there are any noisy parts in the movement then you have binding and you need to check and adjust the worm and belt tension. So original problems that prior to belt upgrade might still be there and no fault of the upgrade.
If the kit instructions as mine do say test by turning by hand and you can not turn by hand , you may have a problem with the worm or belt tension . Take off the cover and post an image.
My rowan belt drive worked a treat and my guiding was great. At 0.6 error. But then noisy slewing after several months ( now I could hear it) alerted me that the worm needed maintenance and adjustment. Works even better now.
Quote:
Originally Posted by Cosmic
Yeah Ray its pretty much both the RA and DEC axis. RA is a little looser probably could turn it if you had enough strength. I find it really strange what's happening. I loosen both a bit but no change...
Hi Nik, was yours fine when slewing at x9 speed ect or did you get the star drifting away on guiding? Its a little mystery atm but hopefully I can work it out...Did it again last night, its random when it happens well I don't see it coming and the phd 2 graph in DEC shoots through the roof and the star is lost. Hoping I can get it resolved sooner than later, its odd alright.
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