SpudFiles

Compromise.

MrCrowley wrote:So, no, not looking like I'll be buying any haha.

Student, pfff...



Dude, carbon fibre! Seriously!

Would I also need to buy different epoxy for the carbon fibre? I already have some epoxy for the fibreglass.

I believe it's chemically the same thing (assuming you weren't going to use polyester resin) but they appear to differenciate between bonding and laminating resin in terms of viscosity, which makes sense, you want something for lamination to be more runny to get in all the weave.

Sorry for not contributing anything, but I can't resist...

Link!

Insomniac wrote:Sorry for not contributing anything, but I can't resist...

Of course you then have no money to put in it 'cause you've spent it all on your wallet

Shall we set up a paypal donation fund to MrC can splash out for some CF...

jackssmirkingrevenge wrote:

Insomniac wrote:Sorry for not contributing anything, but I can't resist...

Of course you then have no money to put in it 'cause you've spent it all on your wallet

Shall we set up a paypal donation fund to MrC can splash out for some CF...

Or how about we splash out for Mr. C so he can buy an aluminum barrel with a threaded coupling?

Moonbogg wrote:Or how about we splash out for Mr. C so he can buy an aluminum barrel with a threaded coupling?

Only if we can reserve some of the funds to buy you some epoxy so you won't hate/fear it as much

@Moonbogg
Lol fair point - getting an aluminium or steel barrel might be cheaper than reinforcing PVC/ABS with cf and epoxy

Finding the perfect aluminum pipe might be hard considering the sabot was machined for the current barrel...

I will not machine another sabot. Just forget it!

LeMaudit wrote:I will not machine another sabot. Just forget it!

What if MrC casually mentions that he fitted a new 4" barrel

jackssmirkingrevenge wrote:

Moonbogg wrote:Or how about we splash out for Mr. C so he can buy an aluminum barrel with a threaded coupling?

Only if we can reserve some of the funds to buy you some epoxy so you won't hate/fear it as much

Actually, I just may use some epoxy on my new design. It just won't be holding end caps on or anything.

About the barrel, can't we just find him the same barrel he has now, but just in METAL?!

As for an aluminium barrel:
http://www.trademe.co.nz/business-farmi ... 200893.htm

50.5mm O.D. with 1.5mm walls for an I.D. of 47.5mm. It could work although i'm not sure if the walls are thick enough and I still have to find a way of threading it somehow. I've bought from him before and he will cut lengths for me. The longest length that can be posted is 1.5m.

I'm sure you could join two lengths neatly enough if needed. 3m barrel

You could also just find a way to get a seal on the barrel and then fasten it down by some other means.

Moonbogg wrote:Actually, I just may use some epoxy on my new design. It just won't be holding end caps on or anything.

Baby steps

As to reinforcing the barrel there is a simpler solution - strong tubing slightly bigger than the barrel sleeved over it, and simply pour epoxy in the gap.

Wrapping the barrel with wire first makes it stronger and helps to economise on epoxy.

jackssmirkingrevenge wrote: As to reinforcing the barrel there is a simpler solution - strong tubing slightly bigger than the barrel sleeved over it, and simply pour epoxy in the gap.

Okay, we've exceeded my budget once again. Back to the fibreglass


edit: For application, I'm thinking of mixing the epoxy in a disposable cooking tray and using a paintbrush to paint the underside of the first 20cm of the fibreglass (which will be enough to complete a single wrap of the barrel), then applying more epoxy to the underside, 20cm at a time, and continuing to wrap the fibreglass as I go. After that it'll all be wrapped in plastic wrap.

Apart from gloves, a well ventilated room and a newspaper covered floor, any other precautions I should take?