Is there anyone that uses a CNC Lathe to cut chambers and thread barrels. Is there any reason I could not use this techinque not only would it save buying a reamer I think it would be easier to setup. I would think you could easily dailed the center of the barrel into .0001 and then cut your chamber from a blueprint or such. your thoughts. I have access to many live tooling Okumas and even a multus so the machinery is avaible.
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Re: Cutting a Chamber
could you cut a chamber without a reamer though? on a CNC if it was accurate enough?
DD
could you cut a chamber without a reamer though? on a CNC if it was accurate enough?
DD
Re: Cutting a Chamber
was just thinking they do somethint to bore it out to start with...
not sure
DD
was just thinking they do somethint to bore it out to start with...
not sure
DD
Re: Cutting a Chamber
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: chpprguy</div><div class="ubbcode-body">Can you keep a tool bit that small from chattering? </div></div>
that would be my concern. having a bar small enough diameter to cut the throat/lead and long enough to reach in there would be pretty flexible.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: chpprguy</div><div class="ubbcode-body">Can you keep a tool bit that small from chattering? </div></div>
that would be my concern. having a bar small enough diameter to cut the throat/lead and long enough to reach in there would be pretty flexible.
Re: Cutting a Chamber
you could maybe do some roughing work, but it wouldnt be worth it.. CNC chamber reaming would be easy tho, as retract and chip flushing would be easier..
you could maybe do some roughing work, but it wouldnt be worth it.. CNC chamber reaming would be easy tho, as retract and chip flushing would be easier..
Re: Cutting a Chamber
I'm not a machinist or 'smith but I don't know how you would tell where to put your datum line for headspace. I have thought about doing a straight walled case w/o a reamer, but short of a CNC EDM I don't know how to go about doing a bottle neck chamber w/o a reamer.
I'm not a machinist or 'smith but I don't know how you would tell where to put your datum line for headspace. I have thought about doing a straight walled case w/o a reamer, but short of a CNC EDM I don't know how to go about doing a bottle neck chamber w/o a reamer.
Re: Cutting a Chamber
There are people that are cutting chambers with cnc. Most of the them are using high end cnc"s. Ask lilja.
There are people that are cutting chambers with cnc. Most of the them are using high end cnc"s. Ask lilja.
Re: Cutting a Chamber
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: NotAGuru</div><div class="ubbcode-body">There are people that are cutting chambers with cnc. Most of the them are using high end cnc"s. Ask lilja. </div></div>
are they fully cnc cutting the chamber with a boring bar or are they still pushing a reamer?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: NotAGuru</div><div class="ubbcode-body">There are people that are cutting chambers with cnc. Most of the them are using high end cnc"s. Ask lilja. </div></div>
are they fully cnc cutting the chamber with a boring bar or are they still pushing a reamer?
Re: Cutting a Chamber
I believe the are. I am trying to reach my machine guy he was telling me a few people are doing it. I will update when i can reach him.
I believe the are. I am trying to reach my machine guy he was telling me a few people are doing it. I will update when i can reach him.
Re: Cutting a Chamber
Yes it can be done! You can also grind the chamber dimentions after you machined them. BUT COST...We make internal diameter parts with all kinds of profiles in them. Hold diametrical tolerances to .000025 yes 25 millionths.....there is 4 of them in a tenth for those who cant count. So it can be done but i cant see why you would want to. I am told that some of the production gun companies are doing this over seas.
Yes it can be done! You can also grind the chamber dimentions after you machined them. BUT COST...We make internal diameter parts with all kinds of profiles in them. Hold diametrical tolerances to .000025 yes 25 millionths.....there is 4 of them in a tenth for those who cant count. So it can be done but i cant see why you would want to. I am told that some of the production gun companies are doing this over seas.
