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Pocket board building

Here you can exchange your experience and datas about your home build boards
grandeand
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Re: Pocket board building

Postby grandeand » Fri May 07, 2021 10:19 am

guides and milling machine, and the boxes came out.
i used future us boxes.
Screenshot_2021-05-07-10-41-17-834_com.miui.gallery.jpg
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this is the build method recommended by the retailer manufacturer.
as also seen on this video.
https://youtu.be/0tehU7h0Vbk

Johnnyrotten204
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Re: Pocket board building

Postby Johnnyrotten204 » Tue Jul 06, 2021 12:06 am

v2.0

Good success with rice paper decal, 1.4cm total thickness (don't think I would go any thinner due strength and it would borderline float). Glued up the panels, made a more professional press out of 2x4's for future attempts.

Resawed the wood pieces in half for panel mirroring. 2.2 kg total weight.
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BalsaMichel
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Gear: FS Soul 2 8m + 10m, CAB Fusion DA foil, backyard built split-TTs, skimboards and foilboards
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Re: Pocket board building

Postby BalsaMichel » Sun Jul 25, 2021 5:40 pm

May I post this here although the board is 1.2m long? Maybe on the upper edge of pocketboards, but 78cm when I take the nose off :D .

Idea was to move the splitline as much as possible to the tip to get less strain on the split and a long base for UD reinforcement between split and foil mount.

9.5mm Balsa core and 15mm thickness in the stringer sections. Shells are just 300g/m² carbon triax as 70% of the lenghtwise stiffness comes from the UD fibre anyway. Edges (yellow) and connection profiles (grey) 3D-printed with PETG, anti slip patches printed with TPU. Stiffness of the foil section is really good, the nose might need some more UD carbon on both sides of the splitline.

Thinking already about a simplified version in Paulownia + Carbon without edges and anti slip pads.

Please don´t ask for the sense of splitting 1.2m boards, my press and CNC are only 0.9m long, I had no choice anyway :lol:

Micha

...Edit: Have been told this looks like a hybrid of a giraffe and a banana
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These users thanked the author BalsaMichel for the post:
JoãoSilva (Fri Dec 08, 2023 7:51 pm)
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GJibb
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Re: Pocket board building

Postby GJibb » Mon Jun 05, 2023 11:30 pm

First DIY board. Lots of mistakes and things to change if there are any other boards in the future.
Home Depot EPS/XPS/EPS sandwich
Stainless T nuts set in hardwood
Full carbon top, Fiberglass bottom with carbon stringers plus foil plate reinforcement.
123cm length, cant remember width.
Wish I fully carbon'd the bottom.
Took over a month, off work with fairly bad long covid
Nowhere near capable of riding it and honestly think this whole season will be a scrub for me
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rnelias
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Re: Pocket board building

Postby rnelias » Wed Oct 25, 2023 3:22 am

folks, is there any software for board modelling besides shape3d?

Something online like Karoro would be amazing

Windigo1
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Re: Pocket board building

Postby Windigo1 » Wed Oct 25, 2023 6:33 pm

BalsaMichel wrote:
Sun Jul 25, 2021 5:40 pm
May I post this here although the board is 1.2m long? Maybe on the upper edge of pocketboards, but 78cm when I take the nose off :D .

Idea was to move the splitline as much as possible to the tip to get less strain on the split and a long base for UD reinforcement between split and foil mount.

9.5mm Balsa core and 15mm thickness in the stringer sections. Shells are just 300g/m² carbon triax as 70% of the lenghtwise stiffness comes from the UD fibre anyway. Edges (yellow) and connection profiles (grey) 3D-printed with PETG, anti slip patches printed with TPU. Stiffness of the foil section is really good, the nose might need some more UD carbon on both sides of the splitline.

Thinking already about a simplified version in Paulownia + Carbon without edges and anti slip pads.

Please don´t ask for the sense of splitting 1.2m boards, my press and CNC are only 0.9m long, I had no choice anyway :lol:

Micha

...Edit: Have been told this looks like a hybrid of a giraffe and a banana
Wow that's next level in terms of skills for a DIY board! Great job!

Banjokite
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Slingshot H4 foil with 90cm mast, Naish surf thrust XL foil, with Axis tray 110cm.
Also various custom surfboards.
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Re: Pocket board building

Postby Banjokite » Fri Dec 08, 2023 12:32 pm

Banjokite wrote:
Sun Apr 11, 2021 3:39 am
Hi Builders, I’m part way through a solid balsa core board, its 90x41x3cm before shaping the rails and nose (pictured), the centre area has 3 layers - 0 degrees, 45 degrees and 45 degrees, then two lengths of 0 degrees Along the rails (this design is because I have used scrap wood of different thicknesses, and only hand saw tools).
The current weight of the balsa core only is 1.8kg, which I think would put the density of this particular balsa wood towards the stronger end of the range of Balsa densities (though this includes the weight of the PVA glue and I could tell from cutting it that some of it was less dense than other parts).

I have 4 ounce single bias Basalt fibre cloth, 4.5 ounce double bias basalt cloth, and 75mm uni basalt cloth for the lay up.

Interested in advice for the lamination schedule for the least extra weight to achieve the necessary strength and stiffness. 85kg rider, free ride foiling.
I’ll be looking to use big head inserts for the foil mounting, with chopped fibre 20mm drill-outs between the hull and deck.

Possibly might use exposed 2mm cork deck pads. I know this won’t be the most efficient material combination for weight-saving instead of foam/carbon, but this an eco build orientation so the gains in other areas are relevant.

Cheers- Banjo54A6E8FE-4A51-448D-B36F-60939180CCDC.jpeg5C09A819-1088-4D60-AF8B-C59575FA8984.jpeg
Went with basalt double uni strips on the deck then a layer of biax for foot area, and 0-90 to finish. Bottom double uni around the box but none to the nose, then just single 0-90.

I sealed the balsa with thickened epoxy before lamination but it didn’t soak up much because it is laid across the grain not end grain.
Reinforced the deck between the foil tracks with end grain to resist compression of the horizontal balsa here.

Board feels strong, no flex issues. I just sanded through a few spots cos of lazy faring but it the finish feels smooth enough.
Deck covered with wine cork slices.

Over all basalt fibre was easy to work with, slightly harder to cut and conform than glass but easier than carbon. I think it will be an increasingly popular material and it’s starting to be used in some major surfboard brands now.
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JoãoSilva
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Re: Pocket board building

Postby JoãoSilva » Fri Dec 08, 2023 7:49 pm

Wow. Only now found this tread... Some amazing work done here!


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