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chiliviking

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I got back to work on my PM Lathe kit this week after being away for a couple weeks. I think I have most of the difficult stuff done. I procrastinated for a while on how to mill the 1/32 keyway in the lead screw. I ended up using an aluminum soft jaw in the milling vise with a recess cut out to hold the 1/8 shaft. It worked great but is kind of a slow process with that small of an end mill. I only took .003 at a pass and completed the cuts without breaking an end mill.









I will start on the 4-jaw chuck for it soon as that is the biggest challenge left. This project has been a great learning experience!!
 

mklotz

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Looks really great, chili.

I gave up trying to mill the slot in the power feed rod. Instead, I clamped the rod into a slot in a piece of aluminum and used a 1/32" slotting saw. Worked nicely.

What procedure did you use to make the three ball handle for the crossfeed?
 
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chiliviking

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I made the 3 ball handle freehand with what I believe would be called a "graver" if I know the correct term. Basicaly just a small worn out file with a cutting edge ground on it and used in the same manner as woodturning. It took two attempts as the first on I goofed up when I tried to broach the square hole in it. The second one I filed the square hole which is the correct procedure.
 

gilessim

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That's really great work!, I'm envious! did you have to cut the little gears? or did they come with the kit?

Giles
 

S_J_H

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It's looking great!
I'll be back to work on mine soon. I decided if I am going to be doing work with these small endmills I really need a high speed spindle. So one project led to another. ::)

Steve
 
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chiliviking

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The gears come in a long bar with the teeth on them and you cut them to length, bore the center hole and machine the hub if necessary.
 

Bernd

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Very nice and clean job there Chiliviking. :bow:

Bernd
 

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