JR FIREARMS Posted February 16 Report Share Posted February 16 I’ve been a bit busy of late and forget to take pics or post about it. So here are a few pics of odd jobs for those that may find it interesting. Quote Link to post Share on other sites
JR FIREARMS Posted February 16 Author Report Share Posted February 16 Quote Link to post Share on other sites
JR FIREARMS Posted February 16 Author Report Share Posted February 16 There has also been some new tooling and equipment installed. As well as making a new reamer flush system For the Haas to play at CNC chambering. Quote Link to post Share on other sites
Popsbengo Posted February 16 Report Share Posted February 16 Looking very good. Is the blue 'spider' carrier something you've manufactured? Quote Link to post Share on other sites
JR FIREARMS Posted February 16 Author Report Share Posted February 16 3 hours ago, Popsbengo said: Looking very good. Is the blue 'spider' carrier something you've manufactured? The action truing jig, yes i made it myself a good few years back. Quote Link to post Share on other sites
quicko Posted February 18 Report Share Posted February 18 looking good Jack, Quote Link to post Share on other sites
Ronin Posted February 18 Report Share Posted February 18 I’ve often wondered how you get by the issue with barrel bores rarely running true when using fixed tooling for chambering - especially with CNC machines where I guess you can’t “feel” the reamer cutting Ive a number of reamer holders I use - all allow some movement - axially - as the pilot follows the bore - how do you account for this with collet holder type fixtures (it’s not a trick question Jack, ive nothing like the machines you run and am genuinely interested) Quote Link to post Share on other sites
JR FIREARMS Posted February 18 Author Report Share Posted February 18 Hi Andy, Chambering off the tool post does bring it’s own issues, such as repeatability and lack of feel. So work holding and feeds & speeds are cruicial. A floating holder is a must for the toolpost, my one pictured is an axial and radial floating holder. It just happens to have a built in ER collet. As for the barrel setup, this is exactly the same as on a manual lathe. I’ve not had chance to run it yet as it’s a side proiect, i’ve been gathering tools as well as plumbng the flush system. Once i get it running i’ll post up the results, wish me luck 🥴 Quote Link to post Share on other sites
Catch-22 Posted February 18 Report Share Posted February 18 Apologies, slightly off topic but have you used a rigid chambering setup at all? I know SAC and Area419 are big fans of rigid reamer chambering rather than using floating reamer holders. Cheers 👍 Quote Link to post Share on other sites
JR FIREARMS Posted February 18 Author Report Share Posted February 18 I believe both have them have moved away from rigid reaming due to too many variables and fluctuations. This is based off of their own comments on forums etc. Quote Link to post Share on other sites
Ronin Posted February 18 Report Share Posted February 18 Thanks for the response Jack I wasn’t aware that the collet holder fixture had Axial movement Would love to see this in action if you get the opportunity to video sometime I’ve always done things “old school” 😂 Quote Link to post Share on other sites
JR FIREARMS Posted February 18 Author Report Share Posted February 18 Yeah it’s a neat little holder, but getting the toolpost and holder all correctly trammed is a bit of a pain. Otherwise the reamer can be pointing quite a way off, which is going to end badly lol. I’m sure like yourself we have our established ways and processes to chamber that just work and comfortable with. So it will be a bit of a learning curve, but i do all other jobs on the CNC now so thought it would be a fun project to get it chambering. Unless using carbide reamers there will be no real gains other than it’s cool 🤣 I’ve got a good take off barrel and bought a reamer specifically for testing. Good or bad i’ll post the results hopefully in the comming weeks. Quote Link to post Share on other sites
Catch-22 Posted February 19 Report Share Posted February 19 13 hours ago, JR FIREARMS said: I believe both have them have moved away from rigid reaming due to too many variables and fluctuations. This is based off of their own comments on forums etc. Interesting, thanks for the reply! Quote Link to post Share on other sites
lambsey Posted February 27 Report Share Posted February 27 Very Nice Quote Link to post Share on other sites
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