my DIY swallow tail burton supermodel 172 - Page 7 - Snowboarding Forum - Snowboard Enthusiast Forums
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post #61 of 174 (permalink) Old 12-05-2012, 01:07 AM
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Looks great ETM

Starting mine now
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post #62 of 174 (permalink) Old 12-05-2012, 03:00 AM
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ETM all the cutting is done, I have to remove the 5mm off wood. You said that you used a grider. Everytime I have used a grinder near wood it burns the wood and smokes badly. How did you avoid this? And how close were you removing the wood from the board base and top? There isn't any room for error especially with a grinder!

Last edited by Sim79; 12-05-2012 at 04:50 AM.
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post #63 of 174 (permalink) Old 12-05-2012, 03:02 AM Thread Starter
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Blast from the past LOL

When I got back from Japan I decided I was going to build my own boards from scratch, well Im about a week out from pressing my first one. Its been a long road but Im almost there!

Where it all started, drawing it out on CAD (thanks Dad!)


The CNC cut template


Channel routed in the core for pouring 360 degree urethane sidewalls


urethane sidewalls poured into the channel


Sintered base laying over the profiled core


You can see the camber profile here. Rocker between the feet and camber outside with a big rocker nose


#1 core with veneer top sheet


some more veneers I made for top sheets


Testing the press with 60psi in it



The next pics will either be a finished board or a massive fail LOL
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post #64 of 174 (permalink) Old 12-05-2012, 03:06 AM Thread Starter
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Originally Posted by Sim79 View Post
ETM all the cutting is done, I have to remove the 5mm off wood. You said that you used a grider. Everytime I have used a grinder near wood it burns the wood and smokes badly. How did you avoid this? And close were you removing the wood from the board base and top? There isn't any room for error especially with a grinder!
I did use a grinder with a 1mm cutting disc taking off very small amounts at a time, yeah it will smoke a bit but thats ok. You need to get all the wood out, go till you see the fibreglass layer under the top sheet and the base (wear a dust mask and safety glasses obviously)

If you are worried just use a spar urethane and paint it on the wood like people do with splitboards

Last edited by ETM; 12-05-2012 at 03:08 AM.
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post #65 of 174 (permalink) Old 12-05-2012, 05:14 AM
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Few crap phone pics, needs a little more shaping, wood removed and seal up.







Less than 2 months till Japan, can't wait to test this out.
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post #66 of 174 (permalink) Old 12-06-2012, 01:45 AM
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Grinding done, turned out a easier than expected.

I have the first section of urethane drying.

Last edited by Sim79; 12-06-2012 at 06:20 AM.
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post #67 of 174 (permalink) Old 12-06-2012, 05:52 PM Thread Starter
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Now the waiting game.
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post #68 of 174 (permalink) Old 12-06-2012, 08:11 PM
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Good news,

we are having one of the best years ever for snow in Japan,

I am off to Nagano on Monday..

I should get to test out my swallowtail.
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post #69 of 174 (permalink) Old 12-06-2012, 08:40 PM Thread Starter
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Good news,

we are having one of the best years ever for snow in Japan,

.
Fantastic news
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post #70 of 174 (permalink) Old 12-11-2012, 01:51 AM
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. I ended up doing about 3 layers and grinding it back once dried using a flap disc/angle grinder.
Please do the above ^^^

I didn't and it caused the urethane to bubble a bit.
I just got carried away and made the urethane one thick layer straight away. Which caused it to bubble when I sanded it back it looked crap due to the smooth urethane surface having bubbles in it, I went to dig the urethane out with sharp flat tip and thought it would come out easy. As it come off very easy from the base and the top, but its tough as between the base and the top, so I just left it and ran a thin layer of urethane to seal the small bubbles on the surface.
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