My spindle design

[Ross77]

Thanks Barry.

Theres some good links that i didn't find, Thats why I like this forum...

I did see the Henriksplace one and In all reality, design wise, thats what I will end up with, minus the hardening and grinding bit.

What are you thinking of for balancing? Do you think building it all up and sending it off for balancing would be an option? Or do you think offsite individual part balancing, followed by offsite assembly balancing would be required?

to be honest I hadn't thought about that, do you think it will that much of an issue? after all it i will be fairly small diameter stuff machined in one operation( if I can sus it out)

Can you machine it to hold the tight run out a spindle often has?

Probably not but I have plenty of AL stock and cheap bearings to practice on. and I'm willing to learn, if my lathe will let me.

I went for the 3 phase and VFD option for the reasons you mention, plus nice and quiet!

Probably another post in it self but what is the max speed you can get before its to noisy? Have you geared it?

On second thoughts, maybe start with a die grinder as 2e0poz suggested in another post . . .

Yeah I have concidered that as apparently they have a double A/C bearing in the nose but having looked at this site

http://www.cncathome.com/spindles.html

he reckons that they are are just up rated routers so the noise is a problem, but i would like to know if anyone has had any success with them?