spline

Hi everyone, I have a friend that is very heavy into building electric cars. Several years ago he converted a regular, gas-powered Toyota Echo to electric. I helped build a new plate to bolt onto the front of the transmission to mount the single big DC motor. I also built the motor shaft to...

I'm machining some shafts for a gearbox that I'm getting splined by a shop (I dont have the tools or the know-how), and was wondering how much material to leave them for splining. For an external spline should I turn them down to the final major diameter of the splines or do I need to leave some...