Neb Powshape

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Buckow
Posts: 7
Joined: Mon Dec 30, 2019 8:55 pm
Location: Switzerland

Neb Powshape

Post by Buckow » Sun Feb 09, 2020 8:34 pm

Hey Builders,
I made my first board a few weeks ago and I can’t believe how good it rides! It’s all thanks to you guys and the heaps of great info you’ve shared.
I went for a vacuum bagged board with cap construction to start and now i’m working on sandwich/sidewall construction for the second one. I wanted to keep the first one simple and get it out in the snow. Now, I’m completely hooked and there are 3 more boards on the way.
Here are some pics of the board and the first few powder days on it.


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I’ll post the build photos in the next post.

Buckow
Posts: 7
Joined: Mon Dec 30, 2019 8:55 pm
Location: Switzerland

Re: Neb Powshape

Post by Buckow » Mon Feb 10, 2020 8:52 pm

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I started out by tracing a nose rocker to make a mold out of MDF
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Then I got some 3mm thick aluminum and glued an Alirubber heat blanket between the mdf mold and the aluminum sheet. The 3mm aluminum is probably overkill for a vacuum bag setup but I figured if I really get into building then I’d like to bring the aluminum sheets over to a pneumatic press. Also, I thought it might not suck down into the mold properly so with a buddy we slowly bent the aluminum sheet into the exact shape of the mold. I asked a metal worker buddy because I screwed up the first one I tried to do myself and I didn’t want to see those kinks in the bases. He whispered to the aluminum and somehow managed to get it perfect with some plastic pipes and clamps. It now sits in the form perfectly!
In addition, I had to use the router to create a depression in the mdf mold for the cables from the heat blanket to lay flat. So far so good!
Attachments
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Buckow
Posts: 7
Joined: Mon Dec 30, 2019 8:55 pm
Location: Switzerland

Re: Neb Powshape

Post by Buckow » Mon Feb 10, 2020 9:51 pm

The next step was to get the cores down to the right thickness. I made an adjustable planer bed and used double stick tape to attach the core. A friend had a wide enough planer for my 35cm wide core so I traded him some beers.
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Then I made a pattern using a copying bit for the router and carefully borrowed the side cut, nose and tail shapes from a few different boards I like. I made it much wider than anything I’ve ridden to date. I wanted to make something with 5cm of taper, really wide, normal camber, low rise nose rocker, shorter effective edge and the stiffest part of the board around the front foot. I wanted to create good grip on the hard pack but still float really well. I’m very happy with this one! I made a new shape yesterday but I’ll get to that in a bit.
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Attachments
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Hannes
Posts: 89
Joined: Wed Nov 09, 2011 2:20 am
Location: NRW, Germany

Re: Neb Powshape

Post by Hannes » Wed Feb 12, 2020 8:48 am

You will never forget your first ride on your very own board. And once you´re hooked...

Good job, keep building:-)

Hannes

Buckow
Posts: 7
Joined: Mon Dec 30, 2019 8:55 pm
Location: Switzerland

Re: Neb Powshape

Post by Buckow » Thu Feb 13, 2020 9:11 pm

Thanks Hannes!

Yeah, I’m totally hooked now and really enjoying it. I made another board last weekend but I went a bit overboard on the carbon... I think I learned something? The board is too stiff and edge high. When it cooled down I felt like it was cupping visibly. I put a straight edge on the base and it was very edge high. Too stiff and edge high on a 29cm waist width was really edge catchy.

I put an extra layer of 300g triax carbon on top of the top 750g triax fiberglass. I heated the bottom at 80* and the top at 70*. I thought the base side needed to be hotter to compensate for the base material since I didn’t have a top sheet. That seemed to work well on the first board so I think for the third one I will go back to a symmetrical layup with the glass and a 10*c difference.

Did it cup because I had a thicker laminate layer on the top which got 70*c of heat versus the bottom that got 80*c of heat so the bottom expanded more and therefore contracted more creating the edge high base? I’m not too sure so I think I will try and tune the core thickness better rather than add to the laminate layers. That seems like an easier way to get the flex I’m looking for.

Does any of this make sense or am I misunderstanding things? Here are some pics of the second board.
The second one is a 157 with 34cm - 29cm - 31cm and normal camber. The first one is a 160 it’s 34cm - 29cm - 31cm. I think I like the 5cm of taper more in the powder and less on the hard pack. For the third one I think I’ll do the first shape but with abs sidewalls. The flame treat is just 2 quick passes with a torch? Alcohol wipe before the torch or after? Any advice would be appreciated.
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So now I made a router sled and profiled 2 more cores. Those will be getting sidewalls.

Buckow
Posts: 7
Joined: Mon Dec 30, 2019 8:55 pm
Location: Switzerland

Re: Neb Powshape

Post by Buckow » Thu Feb 13, 2020 10:29 pm

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I am thinking about trying this method at 1:28 with the sidewalls and planer. Anybody done something similar?

Buckow
Posts: 7
Joined: Mon Dec 30, 2019 8:55 pm
Location: Switzerland

Re: Neb Powshape

Post by Buckow » Fri Feb 14, 2020 9:02 pm

The binding inserts on my first 2 boards were laughably far from ideal. I asked a friend with a CNC machine to make me a jig. I think my next board should line up much better.
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I also welded up an edge bender and it seemed like a good idea but it’s pretty useless, haha. Learning by it’s finest....
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User avatar
chrismp
Posts: 1310
Joined: Fri Feb 13, 2009 9:00 am
Location: Vienna, Austria

Re: Neb Powshape

Post by chrismp » Sat Feb 15, 2020 11:09 am

For bending edges I prefer to use the modified tile nippers. You can buy them here (or just make your own with tile nippers from the hardware store): https://www.skibaumarkt.de/produkt/kantenbiegezange/

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