possible lathe spindle?

[deferr]

I'm wanting to design my own cnc lathe and the spindle is the trickiest part. I was thinking maybe I could start with something like this?



This is a Powermatic 27 shaper 3/4 inch spindle assembl


Any thoughts?

[will gilmore]

no through hole? is that important to you?

[Zumba]

What's the runout spec?

[keebler303]

while we're on the topic, what about a 4wd truck front spindle and hub. It even has a through hole and easily adjustable bearings.

Any thoughts?

I guess it all comes down to how accurate you want to get.

Matt

[deferr]

I don't know that I mind the no thru hole. I have no idea what the runout spec is. I was more concerned with the ability to take the side load.

Even though I'm not trying to build a machine that holds + .0005, I don't think axle spindles would be accurate enough. I don't know becuase I've never seen or measure one but my intuition is that they would not be.

[Trapper14]

I can almost guarantee that axle's will be way too sloppy for what you need, and I would guess that you would want a thru hole.... that spindle in the picture doesn't appear to have one.

[will gilmore]

http://www.littlemachineshop.com/pro...ory=1023914534

how big a lathe are you making?