jefster said..
Just finished a Xmas present to myself. Took it out for maiden voyage yesterday in mushy shore break and so far pretty happy with it.
6/4 oz top and bottom with an extra 6oz patch under feet.

That looks awesome!

How did you do the skulls?? Are the black pinlines painted or resin?

Great work Jeffo,,now for sea trials

Big respect for all of you who build your own! Loving the different designs and ideas from the complex to the simple. Well done and thanks for the inspiration.

Made these a while ago. Not as flash as others on this thread, nice work guys.
These are both 12mm marine ply, tapered down to about 4-5mm on the edges. Fairly flat through the centre of the length (not much rocker though ends are bent up). Concave shape across the middle of the boards.
Nice to see some good home made boards getting made ?

scubaste said..
My new timber ride

Where did you get your veneer from? Is that Balsa?

The balsa looks great. Did you back bag it or hand lam?!?

Are you guys using commercial vac bag machines or homemade ones? ..there was a post a few years ago in the windsurfing forum for DIY vac bagger from a fridge motor ....! Anyone care to enlighten me as to the best type and the actual method and materials ...and where they are available from ?

Prawnhead said..
Are you guys using commercial vac bag machines or homemade ones? ..there was a post a few years ago in the windsurfing forum for DIY vac bagger from a fridge motor ....! Anyone care to enlighten me as to the best type and the actual method and materials ...and where they are available from ?

Sure.

www.boardbuilders.co/

I went a bit crazy and build the Joe Woodworker spec vac pump, plans and details here;
www.joewoodworker.com/veneering/EVS/concept.htm

Bought the vac pump off ebay, purchased the kit from joe woodworker and rest of the bits and pieces from bunnings to build the thing. Still going strong - you set it to a specific vac 'pressure', and it turns off the vac once its reached it. Itll then periodically turn on the vac pump again when the pressure drops...

You dont need to go all out like this, but it worked for me!

a video of the thing pumping in action here;
photos.google.com/share/AF1QipOsubjy4KEOPaVLJor-miHVkuLanAhY4srEy4odCUk-mu3iVa5Kd1HgvOjvC1MB7A?key=MXp6d2NhbmRRRXctNFk1RVcyS2hSSHI4Z3NIVXN3

I buy my consumables (vac bag, peel ply, and breather cloth from Fibreglass and Resin supplies in Welshpool WA.

Livit said..
Just finished this one. 122 x 45 x 4 . XPS core-full cork wrapped. Double concave (did that just for the fun). Chinook tracks. Deck is exposed cork, hoping the grip will be good enough

Looks cool . . . any chance of some construction details?

Livit said..

max_ob said..
Looks cool . . . any chance of some construction details?

XPS core. Epoxy resin from Kinetix.
Tracks inserted prior to lamination (can be left til final stage)
Sandwich 125g Plain weave Glass cloth with Corecork 2mm (Amorim). Relief cuts to wrap the rails. Vacuum bagged
Feather down Cork to prepare for the deck.
Repeat for the deck with 200g Plain weave cloth patch under foot.
Feather down the rails until getting a seamless junction.
Open up the tracks
Final 125g Plain weave Glass cloth for the bottom with rail wrap.
Flood coat with epoxy
Final sanding + wet sanding @ 150-400-600-1200 grit
Acrylic clear coat
Light polish + light sanding at 1200 grit for matte finish.

sounds great . . . a lot lighter glass schedule than I expected but I have never played with cork. I gather the cork uses a bit of resin and forms a strong layer in itself for impact.

Have you built a board with these materials before?

Livit said..

max_ob said..

Livit said..
Just finished this one. 122 x 45 x 4 . XPS core-full cork wrapped. Double concave (did that just for the fun). Chinook tracks. Deck is exposed cork, hoping the grip will be good enough

Looks cool . . . any chance of some construction details?

XPS core. Epoxy resin from Kinetix.
Tracks inserted prior to lamination (can be left til final stage)
Sandwich 125g Plain weave Glass cloth with Corecork 2mm (Amorim). Relief cuts to wrap the rails. Vacuum bagged
Feather down Cork to prepare for the deck.
Repeat for the deck with 200g Plain weave cloth patch under foot.
Feather down the rails until getting a seamless junction.
Open up the tracks
Final 125g Plain weave Glass cloth for the bottom with rail wrap.
Flood coat with epoxy
Final sanding + wet sanding @ 150-400-600-1200 grit
Acrylic clear coat
Light polish + light sanding at 1200 grit for matte finish.

Hey Livit,


Nice done, I want to learn how to start shaping my own boards.

where you get your foam from? Is it all XPS?

Is that strong enough to hold the foil?


Cheers

Mark _australia said..
^^^ XPS is not your friend, it delaminates terribly due to gases coming out, needs to be treated right and still not exposed to heat. Do a lot of reading first if u want to use it.
VH grade EPS is a lot easier, and put divinycell blocks in for your tracks (or at least 6mm ply stringers around boxes like old school windsurf board.

IE- first board should be a simple surfboard, not something taking the loads of a foil

You are right Mark, I might start with a simple surfboard.

What about EPS Blocks where is the best place to buy?

Another


5'3" x 18.75 - 24L

Mark _australia said..
^^^ XPS is not your friend, it delaminates terribly due to gases coming out, needs to be treated right and still not exposed to heat. Do a lot of reading first if u want to use it.
VH grade EPS is a lot easier, and put divinycell blocks in for your tracks (or at least 6mm ply stringers around boxes like old school windsurf board.

IE- first board should be a simple surfboard, not something taking the loads of a foil

I have a very different experience on that one. I have had only positive experience XPS so far, all the boards I made are used in WA and none have delaminated in 3 years... I found sanding it rough before laminating (100 grit) or crusting it up with a mix of resin and Qcell seems to reduce the risk of delam. I think it works very good for a foilboard.

As for building a surfboard first, what's the point? With a foilboard there is nothing very technical apart from reinforcing around the mounting system. If using a KF box or a tuttle then more reinforcement is required but the load from a plate system is way less than the other 2 and construction requirements can be lighter.

When I started shaping around 3 years ago, I had no previous experience and got all the required information from various forums and websites ... Ended up vacuum bagging on my first board which was a bit scary on a 30 degree day.

It can be done with patience and motivation