Custom Carbon FiberStock from scratch

[Mojave]

I thought I would start my own post. I ordered the supplies last night, and they are supposed to be here on the 10th, I just checked tracking. .

I am going to use the McMillan Mountain Tracker LR for design clues. I have never handled one, I figure if I don't like it, I'll just build something else next time.

First rifle to get the stock is a Winchester XPR in 243, and I am going to make it with a 13.75 LOP for me, and figure out if the stock design would work for my daughter. If it will I am going to cut it to 11 inches LOP.

If I like the set up when I am done I am going to do a Winchester M70 in 300 and a a Voere 2165 in 9,3x64 Brenneke. Those two will be a good test of recoil.

Here is my list of supplies ordered from Easy Composites based on their advice. I live in Germany, so this stuff is coming from Holland.

450g 2x2 Twill 12k Carbon Fibre Cloth (1000mm)​

650g 2x2 Twill 12k Black Stuff™ Carbon Fibre Cloth​

XCR Epoxy Coating Resin​

Area 419 Arcalock 10 inch

 

[NVUplandHunter]

saw your posts on one of the other DIY carbon stock threads. looking forward seeing how it all comes together!

 

[Mojave]

 

[Mojave]

Ok, so these are my cut outs, I made about 8 of them in different sizes based on a print out I had of McMillans stock. They are shiny because I laminated them to make them stiff.

It's almost 6 pm and I have not gotten the box yet from Holland.

Hopefully, it will be here tonight.

I am going to do forged carbon fiber chassis for the inletting. I did not think to order than when I ordered this original order. I am going to see if I can find some tomorrow here in Germany locally.

I do not have a 3d printer, so I am going to have to make a mold for the receiver out of wood.

 

[Mojave]

Box came today, the shippers broke one of the sections of foam, but it broke along the lines I needed.

 

[Mojave]

I ordered chopped carbon fiber and some molding material. I am going to build a forged carbon fiber bedding block for all four of the systems I am working on. A Mauser 98 clone, a Winchester XPR, Winchester M70 and a Blaser R8.

I bought it off of amazon which as I couldn't find anything like that here in the German town I live in. Supposed to be here the 1st of August.

 

[Ice-kub]

Excited to see how this turns out! Curious about your forged bedding block idea, can't wait to see how that turns out!

 

[Mojave]

Probably a Rube Goldberg, but maybe it will come together.

 

[Mojave]

Internal chassis like a HS Precision, just made of carbon fiber.

 

[Ice-kub]

Probably a Rube Goldberg, but maybe it will come together.

That sums up what I've been doing... If you have access to this stuff, it's been invaluable to me.

Free Form™ AIR Product Information

Lightweight Epoxy Putty

www.smooth-on.com

I've been mixing CF chop (pretty much any scraps) into it to and it is very strong. Used it to fill gaps/low spots, build up areas that have been sanded down too far or for reshaping.

 

[Mojave]

My goal when the casting silicone arrives is to cast the receiver inlet and then pour an epoxy mold of the receiver inlet to to cast into a bedding block/internal chassis. With he Blaser and the XPR this will be stupid easy. With the M98 and the M70 I am not sure who it will work, but you gotta try.

 

[Ice-kub]

My goal when the casting silicone arrives is to cast the receiver inlet and then pour an epoxy mold of the receiver inlet to to cast into a bedding block/internal chassis. With he Blaser and the XPR this will be stupid easy. With the M98 and the M70 I am not sure who it will work, but you gotta try.

Check out how Altera does it! The silicone mold is a great idea

 

[waspocrew]

Cool project! Following along

 

[mcr-85]

I am also down the rabbit hole of building a stock for a Win Model 70. I am close to doing the lay up.

I took a bunch of measurements and 3D printed an action clone and bedded it in a mixture of resin, chopped carbon fiber and microballoons. It was a good idea but my 3D print was not 100% accurate. I've had to hand mill (Dremel) out some material to get it to fit. Not sure I'll do it that way for the next one.

I am planning on doing my own post when I get it all put together.

Sent from my SM-S908U using Tapatalk

 

[Colorado Cowboy]

I have worked with carbon and graphite fibre in the aerospace industry, which I spent 40 years as a Mechanical Engineer. The one thing I be very cautious with is strength, Almost all of our assemblies go into an autoclave for cure and to get ALL the air bubbles out of the matrix. Don't know if commercial carbon fibre stocks go into an autoclave as part of their manufacturing process.

 

[Mojave]

Carbon fiber chop showed up today. About 5 pounds of it.

I am waiting on the silicone to Mold the action.

 

[HendoJ]

Internal chassis like a HS Precision, just made of carbon fiber.

I am planning a very similar build, making an "internal chassis" or bedding block before bonding that into the CF stock. Looks like you're at least 2 months ahead of me in terms of timeline, I haven't even ordered any CF yet.

Until now I have been planning on using epoxy grout for the bedding block, but might change over to forged CF depending on how yours works out.

I measured my action and modelled in CAD, then I will 3D print a negative and fill with epoxy/forged CF - this way I can have a few iterations without any epoxy/resin ever touching my action.

Will start my own post when I start building, keeping a keen eye on yours until then!

 

[Mojave]

I don't have a 3D printer. Just one more thing that I would have to pay to move back to the USA next year. I have Autodesk Fusion on my desk top and have been playing with it, but I need to start watching some tutorials. At least so far it is not intuitive.

If I can get it going I might model it, and build a print and pay someone to print it for me.