My Plan A is to use a clamp just as you suggested, even if I need to fabricate one. However, after playing around with the vernier today I am not sure how to assemble it so it has the required preload. My initial thought results in a preload on the shafts, but not the bearings.I must be missing something really basic because this is not a complicated part.
Thanks for your help. I'll let you know how it turns?out. If I can't get it to work again, I like your idea of just not worrying about the vernier and directly couple the shafts.
On Wed, Mar 15, 2023 at 2:42?PM wb6ogd <garywinblad@...> wrote:
Now I see..? the C-line is different from my A and B lines!
If it does depend on pre-load like you say, you just need a big clamp..? and remove the final cage and tubes. My biggest clam is not big enough but you get the idea.
Or, nobody says you really need a vernier.? My early T-4X and the up to the early R-4A rigs didn't have them. I even watched a YouTube recently that the guy bragged about the nice fast adjustment on his early rig! Just freeze the two shafts somehow, maybe JB Weld or squeezing them?