Blueprinting Fixtures

[Bully]

I’m gathering tooling and looking for ideas.
How do you fixture for action blueprinting? Jig or off a mandrel? 3 or 4 jaw?

Pics if you’ve got’em!

I ask for everyone to be nice to everyone else. Just because someone uses a different set up doesn’t make it bad.

Thanks all!

 

[jkohler]

I use a GTR mandrill and bushing to indicate off. I put the jig in a four jaw

 

[carlsbad]

If that's the bottom of the setscrew marks in your inner sleeve, you might want to throw the setscrews into the lathe and flatten the bottom. It will reduce your required torque quite a bit. Those are manly man bites. --Jerry

 

[jkohler]

If that's the bottom of the setscrew marks in your inner sleeve, you might want to throw the setscrews into the lathe and flatten the bottom. I will reduce your required torque quite a bit. Those are manly man bites. --Jerry

Ya jerry that's what them be. It's a old picture I fixed it long time ago. I wasn't to worried about marring the sleeve but it made adjusting kinda a pain

 

[bapayton]

This is one I made from a D1-4 back plate and a chunk of aluminum. It also doubles as a barrel spider. Uses 5/16-28 screws w/ brass tips. Should probably increase the screws to at least 3/8 but haven't taken the time. It works well for Remington's, haven't tried anything else in it. I bought a centerless ground rod off of ebay then turned/bored some tapered bushings out of 12L14. It seems to work pretty well although, admittedly, I haven't had anyone check my work to verify.

I also have one of the long heavy walled tube versions but I haven't used it in a long time. It did work well for the couple of Mauser's.

 

[Bully]

This is one I made from a D1-4 back plate and a chunk of aluminum. It also doubles as a barrel spider. Uses 5/16-28 screws w/ brass tips. Should probably increase the screws to at least 3/8 but haven't taken the time. It works well for Remington's, haven't tried anything else in it. I bought a centerless ground rod off of ebay then turned/bored some tapered bushings out of 12L14. It seems to work pretty well although, admittedly, I haven't had anyone check my work to verify.

I also have one of the long heavy walled tube versions but I haven't used it in a long time. It did work well for the couple of Mauser's.

That's a beaut!