Mould making. 8 layers of 200g fibreglass cloth and a lot of thickened epoxy resin.
Carbon fibre stock project
- Thread starter takbok
- Start date
That's it done! 3355g (7.4lb) complete. Add 220g odd for my ATEC CMM-4 moderator or 350g for ATEC H2.
It's my 6x45 rifle for those who don't already know - ready to continue my good run on the Roe this year. I should really check zero but am sure it won't require much adjustment. Metalwork is coated with Tungsten Cerakote that's been well worn.
It's my 6x45 rifle for those who don't already know - ready to continue my good run on the Roe this year. I should really check zero but am sure it won't require much adjustment. Metalwork is coated with Tungsten Cerakote that's been well worn.
kimh
Well-Known Member
I worked for UOP, (Shadow racing) in the 70's, House of Tyrrell and Hesketh(with his newfound gocart ace, Mr Hunt) all in one workshop in them days, Neval my boss the owner of the company and investors in many race teams, A master in fibreglass man and injection moulding ace.
I remember to this day a rep' showing us a 'what we thought was a ball of wool' his pitch was 'this material will change the world' amongst the laughter the designers stepped forward trying to work out how to use it on the nose cones to stop them cracking, Neval said 'what do you think boy' my reply was I could get my mum to knit with it, she did, not happy as it cut her hands, he had three ladies knitting at one end of the workshop in the end, Mr Hunt went off with one! the rep wasn't allowed back in the workshop fearing he too would learn to knit - the rest is history.
I remember to this day a rep' showing us a 'what we thought was a ball of wool' his pitch was 'this material will change the world' amongst the laughter the designers stepped forward trying to work out how to use it on the nose cones to stop them cracking, Neval said 'what do you think boy' my reply was I could get my mum to knit with it, she did, not happy as it cut her hands, he had three ladies knitting at one end of the workshop in the end, Mr Hunt went off with one! the rep wasn't allowed back in the workshop fearing he too would learn to knit - the rest is history.
Bavarianbrit
Well-Known Member
I saw a nose cone being made up for civilian aircraft in 1971 at Toronto airport (Mississauga airport in those days) it was for mcdonnell douglas and they put wax strips into the laminate from tip to the back in a star shape then finished off the lamination on top of it to get a cavity effect then they melted the wax out afterwards.
When I spent my training year in Chryslers experimental laminating room we added plywood egg box ribs on the B surface of the mould held to it by more lamination over them to stiffen it up for when you had to bash wedges in along the sides to spring parts off that had any undercuts.
How did you attach the two stock half"s? Nice work BTW.
When I spent my training year in Chryslers experimental laminating room we added plywood egg box ribs on the B surface of the mould held to it by more lamination over them to stiffen it up for when you had to bash wedges in along the sides to spring parts off that had any undercuts.
How did you attach the two stock half"s? Nice work BTW.
Freeforester
Well-Known Member
Nice work Rory, I did wonder where the resin smell was coming from, lol!
Thanks, I bolted the 2 mould halves together while still green with lots of thickened epoxy along the joins. I then applied 2 layers of 50mm 240g carbon tape to all the inside surfaces along the joins.
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That is a work of art, I've been following it on your social media, looks amazing!
Thanks man, certainly kept me out of trouble!!
Very nicely done Rory 
Cawdor118
Well-Known Member
That is some story!
Thanks, just one bubble in corner of one checkering panel - I managed to fill it and fix with a file. Quite a few other bits to fill also! I will use a high build primer before spraying next time to get rid of the small imperfections. It's not easy and makes me realise how much work you must put into your stocks!
I recently watched a YouTube video on how Sako makes the carbonlight stocks which was very inspiring!
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Thanks, Vortex Viper HS 4-16x44 still a bit heavy and would love a nice Leopold 4.5-14x40 or even a small Swaro Z3 to perfect it.
Thanks everyone for all the encouraging comments. It means a lot! This attempt was by no means perfect but I was able to make a success of it. I've had 4 failed attempts leading up to this.
My next project is building a falling block rifle in 220 Swift AI so really looking forward to sharing that with you when I'm able to get the necessary permissions to proceed with it etc.
My next project is building a falling block rifle in 220 Swift AI so really looking forward to sharing that with you when I'm able to get the necessary permissions to proceed with it etc.
Cawder , started at March with Robin Heard in 1980, now still in F1 , always away travelling somewhere with a car, and in the early days i used to sit next to James Hunt on flights, yep quite a bloke,
That's fascinating, you must have seen it all in terms of interesting engineering!Cawder , started at March with Robin Heard in 1980, now still in F1 , always away travelling somewhere with a car, and in the early days i used to sit next to James Hunt on flights, yep quite a bloke,
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