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How do you guys cut your threads?

 
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Old 02-04-2008, 02:12 AM
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Join Date: Jan 2007
Location: South Dakota
Posts: 753
When I started there in 2003 I was given a clean slate and a checkbook.

Glen Harrison and I picked out a machine and I spent the course of the next year working on it to get it where I wanted it. Lots of things were added and/or modified to the machine to do what I was tasked with doing. Spitting out barrels like chord wood that are fitted as well or better than anyone else.

Mike Allen used to say, "Perfect is plenty good enough."

I always responded with, "BS. I don't have to be perfect, just better than everyone else."

It was a running joke for awhile.

I made a lot of proprietary tooling/fixturing and fussed with a lot of code (all of which had to be written long hand) to get it right.

In the end, it paid off.

I could take a blank barrel and have it fitted and chambered in anywhere from 15 to about 30 minutes depending on the caliber and what action it was for. We did all the barrel work for Dakota also. The chambers would hold a TIR of .000175" to .00025" when done.

I realize those numbers are a bold statement and before anyone throws the BS flag, let me assure they are accurate. I had to purchase additional instrumentation to even detect it. If you saw the process and the logic behind it, you'd be hard pressed to argue there is any other way to chamber a barrel.

Again, I realize how bold that sounds and I had a hard time accepting it as well when I first started there. An old tool and die guy from Washington State that worked for Nesika prior to the merger stumbled onto something and it works. It works damn well in fact.

The next argument by many is that they assume because it's CNC that numbers are what they are and that they never change, meaning threads are just run to a number with no regard to fit on the actions.

Not true in our case.

I wrote all the programs using a sort of variable macro system that I came up with (with a great deal of help from folks lots smarter than me) that allowed for quick production without a compromise on the tolerances and fitting. When I was in charge there (03-06), every thread was fitted to each individual action. They felt much like the thimble on a good micrometer.

Was pretty cool being able to take things to that level, wish it could have worked out for the long haul. I miss it.
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Chad Dixon

Last edited by NesikaChad; 02-04-2008 at 02:21 AM.
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