Need two small pulleys made

[Electrojim]

Fascinating! I hope you will start a thread and show us more.

It is fascinating, actually, and seems to be what I was put on Earth to do. I've been cutting records for more than 70 years, and it's still as much fun as it was in the early 1950s. A bit more challenging, perhaps, especially with the advent of stereo in the late '50s, but I'm not alone. There is a group that even has a Web forum, and members from all over the world share their knowledge, successes and failures. Few of us make an attempt to achieve true professional results, but it's something we all strive for.

And I do enjoy technical writing, something I still do as part of my day job, and fully intend to document the conceptualization, design and development of this recording lathe. I tend to write things up after they're complete, rather than take the extra time to do this incrementally (time is limited at my age), but I already built the all-important "cutterhead," which carries and vibrates the stylus to cut the lacquer-coated disc. That write-up is on my personal Website and shows some of the "machining" that can be done in one's garage with limited equipment and resources. Feel free to go to schlockwood.com, then navigate to 'Projects' and scroll down to the 'Stereo Cutterhead' PDF. And thanks for your interest!

 

[Flyinfool]

You are correct, 2 set screws 120° apart will give line contact on the other side of the shaft and the 2 points of the set screws all equally spaced for the least possible chance of vibration.

 

[Electrojim]

Many thanks to all who responded. I've contracted with one machinist and am in communication with a couple of other for backup. I really am impressed with the knowledge available here, and do much appreciate the help and encouragement. There will be more parts to be made for this project, so I'll be back!