My attempt at opentracker style UCA’s, John gave me the info on the bearings he uses (thanks), which pretty much drives the rest of the parts… Hopefully I didn’t miss any major design features…
Started with a stock repro arm, the both shafts were completely bound up, I think they were a bit too long and were bottomed out:
Tacked in a washer to act has a pilot:
Drill press with a bi-metal hole saw, never really used a hole saw on metal before, they cut very well provided the work is well supported:
To the lathe for the bearing sleeves, made some extra for a set of perches:
Test Fit:
New shafts, on the lathe and the latest craigslist find (the rong-fu mill/drill):
(learned how to single point thread):
Assemble & weld the sleeves:
Paint and assemble:
Seemed to have turned out pretty well, tight, turn very smooth, no binding.
Fun project… As usual, all comment are welcome, rather hear it now than die in a firey crash…
Started with a stock repro arm, the both shafts were completely bound up, I think they were a bit too long and were bottomed out:
Tacked in a washer to act has a pilot:
Drill press with a bi-metal hole saw, never really used a hole saw on metal before, they cut very well provided the work is well supported:
To the lathe for the bearing sleeves, made some extra for a set of perches:
Test Fit:
New shafts, on the lathe and the latest craigslist find (the rong-fu mill/drill):
(learned how to single point thread):
Assemble & weld the sleeves:
Paint and assemble:
Seemed to have turned out pretty well, tight, turn very smooth, no binding.
Fun project… As usual, all comment are welcome, rather hear it now than die in a firey crash…
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