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Re: First wake board build

Posted: Tue Jun 18, 2019 11:18 am
by downunder
No,

All my rails are premade PU.

The process is well defined and explained on the site.

Works for me :)

Mind you, for 90kg rider I would use 14mm wood core in the middle.

Re: First wake board build

Posted: Tue Jun 18, 2019 1:31 pm
by Brettn5y
As an FYI for anyone interested, my current slingshot shred weighs in at 3.9kg with no bindings, no fins etc just the board. With damp bindings etc it is just over 7kg. Obviously fully wet I'm sure it would weigh a whole lot more.

Re: First wake board build

Posted: Sat Jun 22, 2019 1:29 am
by Brettn5y
Timber glued lightly.
I'll thickness with a thicknesser to 11mm.
Then I'll make a core blank with ply so I can use a router copy bit.
Liquid PU on its way.

I'll route a profile on the outside of the rails when they set.

Flex calculations look pretty good.

More pics to follow. Thanks for the advice so far :)

Re: First wake board build

Posted: Sun Jun 30, 2019 1:44 pm
by downunder
Hi,

Remember, the PU is not poured into the wood. The fast one, like 5secs pot life, can be poured.

Or, completely seal routed channel with epoxy first. Than pour.

D.

Re: First wake board build

Posted: Sat Jul 06, 2019 12:31 am
by Brettn5y
I'm going to use an epoxy with a tint. I've found a west systems product that should work well.

Re: First wake board build

Posted: Sun Jul 14, 2019 12:41 pm
by Brettn5y
Well, I tried liquid PU. It was bad. Luckily I tested on some plywood dummy boards. It was bubbly, and generally was quite difficult to work with. Downunder, I've read all your posts about pressurising a tank and curing etc. A lot of info, so thank you. I'm going to do a few trials with epoxy, and get a feel for the flex/springback I get. The damp weather here in Perth hasn't helped with progress.....

Re: First wake board build

Posted: Mon Aug 12, 2019 5:08 am
by Brettn5y
Finally got around to taking a pic. Poured epoxy in the routed channel. The channel is 10mm deep, only leaving 1mm of wood.

More pics to follow as I progress.

Re: First wake board build

Posted: Mon Aug 12, 2019 2:22 pm
by downunder
So that means your plank is 11mm and u got it from Damo or me :)

Youll need SS inserts, drop me a pm and will give some for free.

Re: First wake board build

Posted: Tue Aug 13, 2019 9:11 am
by Brettn5y
Hi, the timber came from Melbourne. It was originally 14mm rough. I thicknessed it, then glued the 4 planks.

Thank you for the kind offer for the inserts. I've already got some. But I'm sure I will need more in the future. Do you sell paulownia? I'd be interested in buying more for some other boards I'm going to make.

My next board will be 14mm in the centre, with a profiled tip/tail.

Cheers

Re: First wake board build

Posted: Fri Nov 15, 2019 1:13 pm
by Grumpy Rider
How did the build go - did you manage to build what you aimed for? ;)