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Pazuzu Pazuzu is offline
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Join Date: Apr 2008
Location: Houston TX
Posts: 8,741
I'm making a thing!

I have a client's vintage (1980s) Japanese mount here. I'm upgrading to high speed Go-To control. The original worm gears were mounted in brass bearing blocks, which works great for a low speed mount that only spins when tracking. They're eat themselves as soon as we start spinning the worm gears at high speed for slewing. so, we needed a solution. I didn't want to modify the original factory parts, so I started designed replacement parts that would allow the worm to ride on bearings. This is me learning how to make stuff on a lathe...

Original setup:


I decided to copy the 4 (each different...) bearing blocks in aluminum, and set in a small ball bearing in each. Here's the first one:





And...it fits! That piece only took me 3 or 4 tries and probably 15 hours of work at the lathe! So efficient!!

(Actually, it also took me 5 months, since I originally tasked one of our machinist interns to make these for me on the CNC lathe at work, which would have taken 3 hours, been perfect, and could have been made out of stainless...but she never got around to it).

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Mike Bradshaw

1980 911SC sunroof coupe, silver/black
Putting the sick back into sycophant!
Old 03-12-2023, 07:54 AM
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