Thanks for the comments guys! I really do appreciate them. As I said, it was just another challenge for me and it worked! It was set up in a steady and actually the first time using a steady rest, so it was a two time learning experience...
First threading attempt
- Thread starter Butch Bradshaw
- Start date
Thought you might like to see some threads cut by a professional cnc shop for comparison. 
I needed 50 parts for work and nobody, including me, wanted me to spend my time making them on manual machines so my boss contracted them out. This is what we got.
Hey...for our purposes they will work so despite the appearance, we're using them. Especially since we had them made and our customer cancelled the order (we said no, we're not eating these). Ah the joys of business these days...
I needed 50 parts for work and nobody, including me, wanted me to spend my time making them on manual machines so my boss contracted them out. This is what we got.
Hey...for our purposes they will work so despite the appearance, we're using them. Especially since we had them made and our customer cancelled the order (we said no, we're not eating these). Ah the joys of business these days...
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Maybe so, is that typical appearance for milled threads?
Reminds me of needle thrust bearings.
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skeeljc
Gold $$ Contributor
If you have not tried threading in reverse away from the chuck you are missing out. You can actually use the threading tool to cut the relief and thread out from there. It is less stress and you can use higher spindle speed (300 rpm works well).
Here ia what I ended up with. It is a LH tool mounted upside down.
Here ia what I ended up with. It is a LH tool mounted upside down.
Dusty Stevens
Shiner
^^^ just be sure you do not do this if you have a threaded spindle. Otherwise its a good method
I milled threads on thousands of parts. Those don't look milled to me.
Well I think I made some progress today. What’cha think?
Now you're just showing off. Looking good !
Look fantastic! Great work.
Thanks guys! I took my time today and hit all the numbers perfect. Can't say enough about the AR Warner hss threading tool! Cuts were clean and sharp with no ragged edge. Game changer!
skeeljc
Gold $$ Contributor
Those AR Warner threading tools are a little spendy (around $100). The Shars threading tool I use costs just $32.00 plus $9.30 for the insert. I have always been satisfied with Shars tools.
Now you need to step up to the plate an start making your own threading tools LOL.
Lol! I don’t think I have enough years left to learn how to do that!
My son builds these so maybe he could.
Sweet nice tell him keep up the nice work you might have to get him make me one of those.
I learned how to grind em in 1990. Inserts are so much more convenient, lol
I like the inserts as well I use them at home but at work I still grind various tools for some of the older lathes in the shop
Latest project, threading and chambering 300PRC.
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