How do I cut...

How about band sawing slightly long, then face one side on the lathe. Then go to the mill and mount them vertically in a V-block and dust the opposite side to length. Only problem I could see with collets and a stop is you have to make sure you draw the collet in the same depth each time. Turn a little tighter or have a slight variation in diameter your length will be slightly off. Might be within your tolerance as I'm really splitting hairs here.

Bruce
 
Th
How about band sawing slightly long, then face one side on the lathe. Then go to the mill and mount them vertically in a V-block and dust the opposite side to length. Only problem I could see with collets and a stop is you have to make sure you draw the collet in the same depth each time. Turn a little tighter or have a slight variation in diameter your length will be slightly off. Might be within your tolerance as I'm really splitting hairs here.

Bruce

That sounds like a winner.

Here is what I thought of last night. Face one side, DyChem the other sides, scribe with my height gauge, turn to mark. Should be within tolerance?
 
Th
How about band sawing slightly long, then face one side on the lathe. Then go to the mill and mount them vertically in a V-block and dust the opposite side to length. Only problem I could see with collets and a stop is you have to make sure you draw the collet in the same depth each time. Turn a little tighter or have a slight variation in diameter your length will be slightly off. Might be within your tolerance as I'm really splitting hairs here.

Bruce

That sounds like a winner.

Here is what I thought of last night. Face one side, DyChem the other sides, scribe with my height gauge, turn to mark. Should be within tolerance?
 
As others have said, I would saw oversize. Then face one end. I use a spindle work stop so I would set up the stop. Fix the work on the 3 jaw, lock the carriage, do a trial face, measure, correct for the error with the compound, and face the parts.

Here is the spindle stop that I made. There are other versions shown in this forum as well.
https://www.hobby-machinist.com/threads/lathe-headstock-work-stop-g0602.32809/
 
Made 30 of these annoying little beasties this past Friday, .403" Dia. X .561" long with a groove .25" Dia. X .375" wide in the center from 316 stainless.

Started with a 48" lenght of 1/2" round, turn, face and chamfer with a 35 Deg. insert, groove with a .083 wide OD groove tool then part .010" long. Bored soft jaws .410" X .530" deep and faced/chamfered to length, 750 RPM's with flood coolant. 4 hours including set up, would have run it at 2000 RPM's in a collet but our 1 collet chuck was in another lathe. That speed with an 8" 3 jaw will turn the coolant into mist

spool.jpg
 
How about band sawing slightly long, then face one side on the lathe. Then go to the mill and mount them vertically in a V-block and dust the opposite side to length. Only problem I could see with collets and a stop is you have to make sure you draw the collet in the same depth each time. Turn a little tighter or have a slight variation in diameter your length will be slightly off. Might be within your tolerance as I'm really splitting hairs here.

Bruce
A dead length collet chuck does not move the collet, a spindle stop through the collet will also maintain length as the part can not move.
Kalamzoo makes a nice little 5C chuck that I hold in a 3 Jaw for quick set ups that is dead length. Less then $400.00
https://www.ajaxtoolsupply.com/ka5c...MI56jGnd3f2gIVjwOGCh2LPQfbEAQYBiABEgLUavD_BwE
 
Got the wrong material, MattM is right rebar is a real mess.
Ray
 
Saw slightly oversize. Mill to length in a vertical mill using a collet block or V block with a stop in the vise or even clamped to the table. Use a high helix 4 flute and side cut it. Likely a better finish than facing 1018 and should easily hold +- .003. De-burr by hand on a belt grinder. Quick set up and easy peasy.........Bob
 
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bhigdog has the best idea!
Cut to length leaving minimal stock for clean up
Good old KURT vise with a solid stop!
V blocks and collet blocks have to be very clean for consistency
mill one end
you already know what your dimensions are when you turn the part around
mill second end belt sand
I had a race one night with the lathe hand cutting lift pins for big draw dies
I completed my batch in half the time the lathe hand took!!
The mill cut did not leave ANY center ****
 
Second that. Tried it today on a few pieces. Learned something very valuable. I'll use it for the rest of the pieces.

Next question: "What should I as a home hobby (amateur) machinist charge for this job"? This is "egg money" but I do like getting paid as affirmation for my efforts.
 
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