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Final part of the first test was to separate the two HD platters,
clean off all burrs and smooth them down with wet and dry.
Re-joined them and pop riveted them together.
Then I did another half an hour bedding in the
worm cutter with some polish to average out the cut.
Teeth are looking pretty clean and consistent now.
This worm gear could easily go straight on a DEC axis and do
a reasonable job.
The next step I have in mind is to turn up a worm with as close
a representation to an ACME thread as possible.
I'll use another two HD platters and see how the thread shape turns out.
Steve
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