Can you imagine a simpler way to do this?
Your drawing looks like a "dog clutch", a crude power transfer coupling.
Quote from: JohnRoberts on May 24, 2016, 11:40:55 AMYour drawing looks like a "dog clutch", a crude power transfer coupling. I needed to know that term - thanks! It's also like a spline coupler, CV joint...
This thing also appears to be a dog clutch that I never had a name for: https://on-stage.com/products/view/6114/117191 which On Stage Stands calls a "Posi-Lock Clutch" (it is very useful BTW). As much as I'd like to roll my own, it's highly impractical when these things are under $20.
Looks like a skinny roll pin will be the thing. With the bolt tight, drill from the top face of A straight down into the top face of B. Hammer in a pin.
Thanks @Marik! You're right - it *is* excessive. For now I've moved back to a design where parts A & B are all one piece, threading on the lathe, trying not to crash into the shoulders. In reality it's a 2" long 7/8 rod with the first 5/8 of length turned down and threaded for 5/8-27 for microphone clips. Aluminum is what I *want* to use but we know how aluminum fine threads gunk and bind. I have some 7075 which is really good about not sticking to tools and fine threaded parts. I'll see how the 7075 threads do after hard anodize. Might be good! Or an expensive failure. The point of this thread was to make the threaded area from steel and the rest aluminum. FYI The lathe and mill are manual. A 50's South Bend and somewhat newer Bridgeport. No DRO. No servos. Fewer operations is a good thing
If you need those in larger quantities please contact me--we make those out of SS all day long and equipped with CNC.