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Thread: Stock holding fixture

  1. #1
    Join Date
    May 2010
    Location
    Colorado
    Posts
    97

    Stock holding fixture

    Would you guys that do stock work in a mill post some pics of the holding fixture and tooling you use to do this kind of work? Thanks in advance!!

  2. #2
    Join Date
    Feb 2006
    Location
    California...unfortunately
    Posts
    560
    Pablo,

    All I've ever used was the vice on my mill, protecting the exterior of the portion of the stock to be grabbed with a piece of leather. I try and grip the stock in a flat, parallel area near the action inletting. As this leaves the arse-end of the stock hanging unsupported over the table, I place a machinist jack under the buttstock. I've never had one move.

    A word of caution...If, after bedding, you use the mill to take out the inevitable excess bedding material, do not cinch the vise down hard on the stock. Try and use the minimal amount of clamping force to hold the stock, because, I believe, you can distort the bedding/action area if too much force is applied. I once bedded an H&S stock that has the aluminum bedding insert. After bedding, I checked it using the indicator method and it came out nuts. So I clamped it up good and tight in the vise right at the action inletting, and milled-out the excess bedding, de-burring when I was done. It looked beautiful. When I doubled checked the bedding with and indicator, I had a bunch of movement. I did some more de-burring...and some more de-burring, but it didn't help. The bedding looked spotless. I finally realized that in torqueing the vise down hard, I had distorted the bedding, likely, I believe, pinching in the aluminum bedding block a skosh, which took my bedding with it. So I re-bedded the rifle, and this time I clamped the stock up with minimal force, removed the excess bedding, de-burred, and it turned out perfect. Since then, I've used just enough clamping force necessary to keep the stock put and I've never had the problem repeat.

    Hope this helps,
    Justin
    Last edited by Zebra13; 02-02-2018 at 01:56 PM.

  3. #3
    Join Date
    May 2010
    Location
    Colorado
    Posts
    97
    Quote Originally Posted by Zebra13 View Post
    Pablo,

    All I've ever used was the vice on my mill, protecting the exterior of the portion of the stock to be grabbed with a piece of leather. I try and grip the stock in a flat, parallel area near the action inletting. As this leaves the arse-end of the stock hanging unsupported over the table, I place a machinist jack under the buttstock. I've never had one move.

    A word of caution...If, after bedding, you use the mill to take out the inevitable excess bedding material, do not cinch the vise down hard on the stock. Try and use the minimal amount of clamping force to hold the stock, because, I believe, you can distort the bedding/action area if to much force is applied. I once bedded an H&S stock that has the aluminum bedding insert. After bedding, I checked it using the indicator method and it came out nuts. So I clamped it up good and tight in the vise right at the action inletting, and milled-out the excess bedding, de-burring when I was done. It looked beautiful. When I doubled checked the bedding with and indicator, I had a bunch of movement. I did some more de-burring...and some more de-burring, but it didn't help. The bedding looked spotless. I finally realized that in torqueing the vise down hard, I had distorted the bedding, likely, I believe, pinching in the aluminum bedding block a skosh, which took my bedding with it. So I re-bedded the rifle, and this time I clamped the stock up with minimal force, removed the excess bedding, de-burred, and it turned out perfect. Since then, I've used just enough clamping force necessary to keep the stock put and I've never had the problem repeat.

    Hope this helps,
    Justin

    Thanks Justin, very useful information!

  4. #4
    Join Date
    Jan 2011
    Location
    upper southwest Arkansas
    Posts
    23
    I too, just use the milling vise as I am normally just opening up inletting for pillars or cleaning up bedding compound.

  5. #5
    Join Date
    Jul 2016
    Location
    Albany, OR
    Posts
    126
    Same, but I like thick (3/8" - 1/2") felt pads as they really seem to grip.

    GsT

  6. #6
    Join Date
    Sep 2014
    Posts
    63
    I also use the mill vise, I have an 8" Kurt. One word of caution, I normally place a pair of small screw jacks under the forend and butt end to keep it from moving. Good insurance believe me.

    Jim

  7. #7
    Join Date
    Dec 2003
    Location
    washington.........STATE that is.
    Posts
    9,399
    Quote Originally Posted by Jim Kobe View Post
    I also use the mill vise, I have an 8" Kurt. One word of caution, I normally place a pair of small screw jacks under the forend and butt end to keep it from moving. Good insurance believe me.

    Jim
    Thanks Jim......I've only used shims and the liddle screwjack idea'r is sweet

    And to everyone else, LISSEN TO JIM KOBE ON THIS!!!!

    Don't ask me how I know

  8. #8
    Join Date
    Jul 2005
    Posts
    285
    Quote Originally Posted by alinwa View Post
    Thanks Jim......I've only used shims and the liddle screwjack idea'r is sweet

    And to everyone else, LISSEN TO JIM KOBE ON THIS!!!!

    Don't ask me how I know
    HSS tooling designed for working aluminum does well on most hardwoods.

  9. #9
    Join Date
    Nov 2014
    Posts
    53
    where can the felt pads be purchaser? thankyou

  10. #10
    Join Date
    Feb 2003
    Location
    Des Moines, IA
    Posts
    1,434

    Go to

    Quote Originally Posted by philipbrousseau View Post
    where can the felt pads be purchaser? thankyou
    Jo-Ann Fabrics or whatever is near you that carries a lot of fabric. I have never seen 1/2" felt, but a lot of 1/4" for making soft toys for little kids. Stack it as thick as you like

  11. #11
    Join Date
    Jul 2016
    Location
    Albany, OR
    Posts
    126
    Quote Originally Posted by philipbrousseau View Post
    where can the felt pads be purchaser? thankyou
    I bought my last from Amazon. You can find any size you want, and in multiple thicknesses. You can get it with adhesive backing to put in bench vises if you want a semi-permanent installation.

    GsT

  12. #12
    Join Date
    May 2010
    Location
    Colorado
    Posts
    97
    Gentlemen, thanks for all the input on this, I can swipe some felt out of my wife's sewing room and probably use some long connection nuts and a couple of bolts for screw jacks.

  13. #13
    Join Date
    Dec 2006
    Location
    Branchville, NJ
    Posts
    409
    I use rubber hay baler belting glued on with contact cement. Tractor Supply usually has it new, but local farmers might have a small piece of used floating around.

  14. #14
    Join Date
    Dec 2003
    Location
    washington.........STATE that is.
    Posts
    9,399

    Thank you so far :)

    This has been a great thread for me as I've been doing a bunch of stocks, mostly McMillan's but also a couple HS Precision's for a testing project and even a liddle wood......using the mill vise and shims and such.

    I bought some machinist's screw jacks (I had no idea'r prior why/how I'd ever use them so didn't have any)

    I tried the felt idea...... it DOES grip really soft and cool! It's never rigid, but it doesn't chatter....I ended up cutting up a whole box of stuff. Even bought a roll of felt carpet pad, it's near 1/2" thick and different finishes per side.

    BUT!!!

    I like to take stuff out of the vise and roll it around in the bright light, measuring and gauging, maybe want to put it back in a mill out a divot where I forgot a clearance.... IT WOULD BE HANDY to have a fixture I could set up, index and take in and out of the vise....

    Any more thoughts on this??

  15. #15
    Join Date
    Feb 2003
    Location
    Des Moines, IA
    Posts
    1,434

    Make a "sandwich board"

    Quote Originally Posted by alinwa View Post
    This has been a great thread for me as I've been doing a bunch of stocks, mostly McMillan's but also a couple HS Precision's for a testing project and even a liddle wood......using the mill vise and shims and such.

    I bought some machinist's screw jacks (I had no idea'r prior why/how I'd ever use them so didn't have any)

    I tried the felt idea...... it DOES grip really soft and cool! It's never rigid, but it doesn't chatter....I ended up cutting up a whole box of stuff. Even bought a roll of felt carpet pad, it's near 1/2" thick and different finishes per side.

    BUT!!!

    I like to take stuff out of the vise and roll it around in the bright light, measuring and gauging, maybe want to put it back in a mill out a divot where I forgot a clearance.... IT WOULD BE HANDY to have a fixture I could set up, index and take in and out of the vise....

    Any more thoughts on this??
    out of hardboard (masonite, 1/4") with a 1" + spine with piano hinges. Glue the felt to the masonite

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