PM Research Mini Engine Lathe Build

[Stevendavis]

press fit went nicely. The assembly came out great so far.

 

[Stevendavis]

The last thing I got done was the spindle itself. A little challenging as it's 2.5" long, with a through hole of 3/32". The spindle is made out of 5/16 CRS. It turned out great so far. Every thing fits very nicely and turns smoothly and the through hole is on the money. I still need to put the radius on the pulley belt positions, and put a taper in the end of the spindle for the dead center.

 

[Stevendavis]

This will be the orientation once it's mounted in the headstock.

 

[TonyHallo]

Coming along nicely Steven.

 

[Stevendavis]

Coming along nicely Steven.

Thanks Tony!

 

[Stevendavis]

Hey Tony,
Do you feel like another project for me? I don't have any way to make this worm gear at the moment. I can't single point standard threads right now. My lathe has a metric lead screw and the only way I know of to make this is by single point threading.

 

[TonyHallo]

I need to change some gearing around and give it a go.

 

[Stevendavis]

Thank you!!

 

[Stevendavis]

All I did today is the first stage of making the 4 jaw chuck.

 

[TonyHallo]

Steven, here is the test cut. I didn't put a center in the part so the final cut should have less chatter. I can drill and ream the 1/8" hole but have no way currently to put the key slot in. I may have a 1/32" cutoff blade that could be fashioned into a tool.