Quote:
Originally Posted by rrussell1962
I collimate indoors and scribble SAO numbers into Sissy Haas's double star book to make it easier to use. I contemplate stripping down my Vixen GPD to work out exactly why the RA axis is still slightly stiff. Not much of a life really.
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Send it here Richard - I did my new-to-me GPD recently in both axes, and it is smooth as silk. Just remember when you loosen the castle nut to replace the grub screw TIGHTLY, otherwise it will start tightening itself over time and become stiff again.
I lost one of the delrin/teflon shims when final reassembling (insert head slap emoticon), so I'll have to wait to try it out when a replacement comes in.