Contact   Imprint   Advertising   Guidelines

Search found 125 matches

Go to advanced search

by RalfsB
Thu Jan 12, 2017 8:12 am
Forum: Hydrofoil Builders
Topic: Bomb proof board from XPs insulation foam
Replies: 26
Views: 1294

Re: Bomb proof board from XPs insulation foam

Last winter I built my bombproof foilboard using the xps core (2 cm thick) and 3mm plywood on both sides plus wooden reinforcements inside. Works fine but is quite heavy.

foil-in-making.png
by RalfsB
Tue Jan 10, 2017 10:16 am
Forum: Kitesurfing
Topic: Line extensions, brands, lengths?
Replies: 5
Views: 431

Re: Line extensions, brands, lengths?

For light winds I am using 15m extensions on my 18m kite, that makes a significant difference.
by RalfsB
Mon Jan 09, 2017 11:19 am
Forum: Kitesurfing
Topic: Sector 60
Replies: 9
Views: 633

Re: Sector 60

On Sector 54 I have M6 screws (6mm metric), thread length 20mm, screw head diameter 10mm (heads are the ones with the Phillips round-pan / mushroom shape), can't see the washer.
by RalfsB
Mon Jan 02, 2017 8:00 pm
Forum: Board Builders
Topic: Hydrofoil board layup
Replies: 14
Views: 1226

Re: Hydrofoil board layup

You may want to re-consider your core material. A closed cell pvc foam should virtually eliminate water uptake even if you do ding the skin. Useful for both rails and also the bolt through for the foil mount. To toughen up the rails you can just add a few layers of fiberglass tape. Either just plai...
by RalfsB
Fri Dec 23, 2016 9:00 am
Forum: Hydrofoil Builders
Topic: G10 wings DIY
Replies: 17
Views: 1322

Re: G10 wings DIY

Making wings is not really hard, if you have some experience with fiberglass and epoxy. I have never used a ready-made G10, usually make what I need on my own. The basic steps are as follows: Make a mold (make sure it is somewhat heat-resistant because epoxy heats up quite a bit when curing), cover ...
by RalfsB
Tue Oct 25, 2016 8:01 am
Forum: Board Builders
Topic: Surfboard deck softened, no cracks, what's the best way to repair it (change the foam or inject polyester resin)?
Replies: 4
Views: 485

Re: Surfboard deck softened, no cracks, what's the best way to repair it (change the foam or inject polyester resin)?

I would just glass it without cutting. Probably 2 layers of 200 gram fiberglass cloth in the stress areas.
by RalfsB
Fri Oct 21, 2016 12:43 pm
Forum: Board Builders
Topic: My first Alaia
Replies: 30
Views: 2477

Re: My first Alaia

Do you mask just the edge and sand the excess off along the top and bottom corner (it helps to have a sharp edge), or do you also mask a narrow area of the bottom and top surface? For an alaia I would mask right on the edge (or a sharp curve, whatever happens to be there) so that glassing and sandi...
by RalfsB
Fri Oct 21, 2016 7:49 am
Forum: Board Builders
Topic: My first Alaia
Replies: 30
Views: 2477

Re: My first Alaia

... if you only do a piece in the middle, you will most probably mess up the edges of the FG fabric when applying epoxy (and the edge on the cloth is far from perfect), leaving a lot of mess and sanding work for you. And although just around 0,3mm thick, it leaves an edge on the surface with some h...
by RalfsB
Thu Oct 20, 2016 7:42 am
Forum: Board Builders
Topic: My first Alaia
Replies: 30
Views: 2477

Re: My first Alaia

So you think one layer of 100-120g of FG will be enough? The board is 18mm thick max. I think it's too weak and I really don't want to break it. I've looked up some tutorials over the net on how to glass it. Seems quite easy. Just wondering how to dispose properly the FG on the round sections (tail...
by RalfsB
Wed Oct 19, 2016 2:08 pm
Forum: Board Builders
Topic: My first Alaia
Replies: 30
Views: 2477

Re: My first Alaia

I think you'll need to glass it. Top and bottom with some light FG, duno 120grams? Less? More? I really think I have to glass it! Do you think one layer of FG will be enough? Why not simple epoxy resin? I have glassed mine with one layer 100g fiberglass cloth / epoxy on both sides; has been strong ...

Go to advanced search