3/16 Square Motor Couplers

[RaceMechaniX]

Looks great Mark!

A little on the tight side of the cable is OK, it's pretty easy to file down a fat cable. A half thou over on the diameter should also work just fine unless a particular shaft is close to the lower tolerance. What alloy brass are you using?

Tyler

[mm123521]

Tyler:

It's just 360 brass.
I think it would be too difficult to use steel or a harder alloy of brass - it took substantial force to push the broaches.
360 is easy to cut, but it may wear out too fast?

Mark

[RaceMechaniX]

Mark,

360 brass will hold up pretty good, an alternative to using 303 Stainless would be to use a 6061 or 7075 and hard anodize it. For the brass I would be more woried about the set-screws stripping than the square wearing out.

Tyler