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GB70 course racing board

here you can exchange your experience and datas about your home build boards


gbleck
Very Frequent Poster
Posts: 546
Joined: Mon Oct 08, 2007 4:39 am

Re: GB70 course racing board

Postby gbleck » Tue May 01, 2012 12:16 am

Techtonics Talons, 38cm rear with 42 fronts at a 4 deg cant angle. The gybe is much simpler then the little 2008 north ltd. If it's not t-storming on Wednesday the temp should be in the 80s. Even with 40is water no boots should be possible. So much better riding barefoot.

sledrat
Rare Poster
Posts: 20
Joined: Mon Jul 20, 2009 6:30 pm
Kiting since: 2009
Local Beach: Keho
Gear: Cabrinha switchblade/omega HD/Griffin 08
Brand Affiliation: None

Re: GB70 course racing board

Postby sledrat » Mon May 07, 2012 5:56 pm

Did I read that correctly on the video that you used Type F in your epoxy resin?

gbleck
Very Frequent Poster
Posts: 546
Joined: Mon Oct 08, 2007 4:39 am

Re: GB70 course racing board

Postby gbleck » Mon May 07, 2012 8:20 pm

Additive F. It helps reduce blush, increasing the bond between sucesive coats. Also helps it flow out nicely. Makes for easy hot coats. Great stuff. The Resign Research epoxy is so the best stuff for surfboard and kiteboards. Tried west system, system 3, MAS and a few others. Love the RR epoxy and I'm just going to stick with it from now on. You can find the right speed, flow and flex in his line somewhere no matter what your application be it hand layup, vac bagging or infusion.

sledrat
Rare Poster
Posts: 20
Joined: Mon Jul 20, 2009 6:30 pm
Kiting since: 2009
Local Beach: Keho
Gear: Cabrinha switchblade/omega HD/Griffin 08
Brand Affiliation: None

Re: GB70 course racing board

Postby sledrat » Mon May 07, 2012 8:43 pm

Thanks, I know additive F will damage EPS - I see now that you used it after your first coat. I'm not quite at the resin stage on my board, just starting the shaping process...

gbleck
Very Frequent Poster
Posts: 546
Joined: Mon Oct 08, 2007 4:39 am

Re: GB70 course racing board

Postby gbleck » Wed May 09, 2012 4:06 pm

I used it on all the coats. It's safe for EPS use. I didn't use any when put the boxes and inserts in but I will on the next board. You can use it at any stage.

WjM
Medium Poster
Posts: 72
Joined: Sun Sep 12, 2010 5:21 pm
Kiting since: 2009
Local Beach: Castelldefelds Barcelona, Spain.
Malgrat de Mar, Barcelona, Spain.
Favorite Beaches: Delta del Ebro, Trabucador, Spain.
Leucate, La Franqui, France.
Dumps, Brandon Bay, Kerry, Ireland.
Style: Race board / Wave board
Gear: 2013,17,13,11,9,7m edge
2011 8m & 5m C4
Mikes lab race board, hydrofoil & 2010 kipuna
10´6 SUP (loving it on no wind days)
Brand Affiliation: None
Location: Barcelona, España.

Re: GB70 course racing board

Postby WjM » Wed Jun 06, 2012 10:54 am

Hi Gary, check your pm. :D

Johnny Rotten
Frequent Poster
Posts: 443
Joined: Thu Dec 04, 2008 1:50 am
Kiting since: 2006
Style: Surf and wake
Gear: Vegas
Torch
Neo's
Hand made boards of pure excellence
Brand Affiliation: None
Location: No fixed address

Re: GB70 course racing board

Postby Johnny Rotten » Fri Jun 22, 2012 9:05 pm

So dude now that you've had some ride time, what's the verdict?
Does she go like hell?
What would you do differently?
Next board?
Most important lessons learned?

gbleck
Very Frequent Poster
Posts: 546
Joined: Mon Oct 08, 2007 4:39 am

Re: GB70 course racing board

Postby gbleck » Sun Jun 24, 2012 8:31 pm

I am a kook so hard to say. I think the next one will be more light wind specific with slightly less rocker and slightly gentler rails. Removing the second set of straps forward. Next one will be lighter core with v bagged divinycell sandwich for lighter weight. I love the forward fixed go pro mount. Moving the center back strap forward one foot strap width for light wind starts. Not as hard to ride as I thought it would be but not as easy as a twin tip.

zmax
Rare Poster
Posts: 42
Joined: Thu Apr 15, 2010 10:51 pm
Kiting since: 0
Local Beach: Belmont Shores
Style: Freeride
Gear: North rebel '09 14m or 9m
homemade surfboard and twintip
Brand Affiliation: None

Re: GB70 course racing board

Postby zmax » Fri Aug 03, 2012 6:12 am

I like to thank gbleck for posting his Build. I've shaped surfboards, surfboards for Kiting and a couple of twin tips, and I'd have to say these course race board are a little more time consuming to build. Some guys locally have started to show more interest in racing, so I thought it's time for me to give it a go with my own build. Many of my questions about fin boxes were answered in this post. Thanks again gbleck!!
Build is as follows: from deck to bottom
Vacuum bagged in two different pulls. Bottom first and then deck in rocker table.
6oz e glass RR epoxy
3mm paulownia
4oz e glass
1lb eps foam core
4oz E glass
3mm cork skin/rails
6oz E glass

double 6oz patches around footstraps and finboxes.
tuttle boxes wrapped in 1/4" divinycell

Hopefully it will stay together under the stress of racing and the abuse of me learning to race :)
Attachments
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photo 1.JPG (87.56 KiB) Viewed 1806 times
photo 4.JPG
photo 4.JPG (99.4 KiB) Viewed 1806 times

Kainiu
Rare Poster
Posts: 1
Joined: Sun Jun 17, 2012 6:30 pm
Local Beach: O'ahu
Favorite Beaches: O'ahu
Style: R
Brand Affiliation: Own

Re: GB70 course racing board

Postby Kainiu » Fri Aug 03, 2012 7:07 pm

Nice build and great video. Thank you gbleck!
1st post here. :bye:
gbleck, What was the weight of your board?
Have you started your next board yet?

I haven't gotten the chance to ride a raceboard yet. Just started kiting last summer, and finally realized it was easier for me to ride my surfboard then a tt. So I have been practicing on my surfboard till I can build my own raceboard. I will definitely be hitting up this thread and watching the videos again!! Very cool!

So zmax, interesting combination of materials.
Did you get to weigh the board before you put all the grip ,straps, and fins on? Do you have a final weight?

Keep us posted on the rides and how they hold up as well, both you guys!!
Bitchin!!

K out!


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