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Hoff CC136 - Transparent wakeboard

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rynhardt
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Hoff CC136 - Transparent wakeboard

Postby rynhardt » Wed Nov 25, 2015 8:46 pm

My next project is to build a transparent wakeboard, based on the same principles as my transparent kiteboard.

It will feature the following:
  • * Progressive 3 stage rocker, flat centre, flat tips, 6cm rocker (static)
    * Length: 136cm, width: 48cm, straight mid-section, tucked in tips
I've finished the moulds, and will be starting the actual build in the next few weeks.
I'm making videos this time around, hope you find them interesting :D

Attachments
frontview.png
topview.png
beam3d.png

KerryBara
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Re: Hoff CC136 - Transparent wakeboard

Postby KerryBara » Wed Nov 25, 2015 9:31 pm

Looks like awesome work you are doing there!!!

Keep the idea and vids coming.

Im also thinking moulds are the way to go to be able to build more complex surfaces.

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rynhardt
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Local Beach: Leeupan
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Style: Freeride
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Re: Hoff CC136 - Transparent wakeboard

Postby rynhardt » Mon Nov 28, 2016 11:19 pm

Sjoe. It's been a year since I started this post. Unbelievable. :o

I've been having huge amounts of fun collaborating with KerryBara doing the infusion boards, but it's time to finish this project.

Having recently gotten into wakeskating I've decided to bastardize this project a bit and cut off the ends of the beam to make a shorter wakeskate instead of a wakeboard.
The plan is to literally just saw off the excess and seal the beam ends with resin, before sticking them onto a piece of polycarb.

I finished the first beam in the last week or so, and made a short video about it. Hope you like it!


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rynhardt
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Posts: 454
Joined: Wed Sep 11, 2013 3:51 pm
Kiting since: 2010
Local Beach: Leeupan
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Style: Freeride
Gear: GK vSonic 6 & 11
Cloud C2 17
Progeni Mutare
Xelerator door
Hoff DD140
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Location: Johannesburg, South Africa

Re: Hoff CC136 - Transparent wakeboard

Postby rynhardt » Wed Dec 14, 2016 4:17 pm

Here's a little video showing the final assembly.
The magic ingredient is the industrial strength methacrylate structural adhesive.


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rynhardt
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Posts: 454
Joined: Wed Sep 11, 2013 3:51 pm
Kiting since: 2010
Local Beach: Leeupan
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Style: Freeride
Gear: GK vSonic 6 & 11
Cloud C2 17
Progeni Mutare
Xelerator door
Hoff DD140
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Location: Johannesburg, South Africa

Re: Hoff CC136 - Transparent wakeboard

Postby rynhardt » Wed Dec 14, 2016 4:29 pm

Final specs on the wakeskate:
  • size: 110cm x 50cm
    rocker: 5cm static rocker (blended 3-stage)
    weight: 5kg - it barely floats :o
I took it for a spin at the cable park, and I am very happy with the results. :D
The grip tape works brilliantly even though it doesn't cover the entire surface.
I think I will add some 0.7" wake fins as it is a bit slippery.
I thought the weight would be a problem, but it is actually a non-issue. If anything, it seems to be more tolerant of off-axis landings.

I'm dubbing it the Disco Tank :lol:
Attachments
DSC_0068.JPG
DSC_0067.JPG

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rynhardt
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Local Beach: Leeupan
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Style: Freeride
Gear: GK vSonic 6 & 11
Cloud C2 17
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Xelerator door
Hoff DD140
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Location: Johannesburg, South Africa

Re: Hoff CC136 - Transparent wakeboard

Postby rynhardt » Wed Feb 01, 2017 6:01 pm

Well I found the next weak spot. :o
This happened on a fairly hard landing. Snapped clean through.
Attachments
DSC_0013.JPG

Blackrat
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Re: Hoff CC136 - Transparent wakeboard

Postby Blackrat » Wed Feb 01, 2017 6:39 pm

I don't feel so bad for breaking my foil now :-) hehe
How many layers cf did it shear thru ?

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rynhardt
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Local Beach: Leeupan
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Style: Freeride
Gear: GK vSonic 6 & 11
Cloud C2 17
Progeni Mutare
Xelerator door
Hoff DD140
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Location: Johannesburg, South Africa

Re: Hoff CC136 - Transparent wakeboard

Postby rynhardt » Wed Feb 01, 2017 6:55 pm

Blackrat wrote:I don't feel so bad for breaking my foil now :-) hehe
How many layers cf did it shear thru ?
Ditto now I also don't feel so bad :-?
At the break it was approx 200gsm glass running down the length of the beam (0deg).
I think the layup was 220gsm 0/90 + another layer of 150gsm 0/90, so only in the 0 deg direction is 110+75, ok so actually 185gsm glass.

Obviously not enough. For glass.


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