D shape

[rodders]

I have a D shaped shaft is there any way to machine (on a lathe) a D shaped collar ?

 

[Tinkerer58]

It would be easier to do it on the milling machine using a rotary table. I would mark out the shape required drill pilots holes and then do the radius on a rotary table, and then the straight section. Please correct me if I'm going at this the wrong or long way, I'm always willing to learn and be corrected.

 

[Herbiev]

You could try a round collar then make a D section to pin, solder, screw or weld in position.

 

[Marty Feldman]

Herbie is right. Bore the collar round to a diam matching the OD of the shaft. Then get a length of round rod with the same dia as the one you just put in the collar. Mount it in your lathe's milling attachment and mill a longitudinal flat that leaves you with a properly dimensioned 'D'. Cut to length and braze (or whatever) in place.

 

[jwcnc1911]

you're wanting to make a collar to fit the D shaft or a collar to hold it? If you're wanting to hold it for machining I would just use a 4 jaw chuck.

 

[rodders]

Thanks very much guys some great help I am obliged
rgds
Rodders