Balsa Twin Fin

What works and what doesn't. Share design ideas, references and contacts for paipo board builders.

Balsa Twin Fin

Unread postby Uncle Grumpy » Mon Aug 20, 2012 8:16 pm

This project has taken much longer then it should have but after months of trials, tribulations, deaths and disasters, it finally lacks just a coat of paste wax for the hull and surf wax for the deck.
Balsa, Redwood Stringers, Plywood Fins, 6 oz.top and bottom, glassed with epoxy resin.
I'll post the process in a series.

Balsa left over from another project

IMGP3497.JPG


Much easier to glue up in sections than to try and do it all at once.
Notice the stringer glued up using just tape. Epoxy rocks.

IMGP3498.JPG


A little shorter than I prefer but I'm working with what I have.
The blank is less than 45"

IMGP3516.JPG
Last edited by Uncle Grumpy on Tue Aug 21, 2012 11:19 am, edited 1 time in total.
Paipo surfer in repose,
Nose on the nose,
No grunting he-man pose.
See how fast he goes!
What is it he knows?
User avatar
Uncle Grumpy
Big Wave Charger
 
Posts: 374
Joined: Mon Sep 19, 2011 12:57 pm
City: San Clemente
State or Province: California
Country: USA

Re: Balsa Twin Fin

Unread postby Uncle Grumpy » Mon Aug 20, 2012 8:34 pm

Plan shape.
This board will be a little Greenough, a little Goddard and a bit 'o Simmons.

IMGP3646.JPG


When I'm working on surfboards I shove my work bench over, cover the skylight and lower my shoplights for the groovy shaping room effect.
You can see my Bosch planer hooked up to the shopvac on the bench at left.

IMGP3693.JPG


After a bit of shaping...
When I glued up the blank there were a couple small checks on the end of two of the boards that ended up being big voids that I had to deal with....

IMGP3724.JPG
Last edited by Uncle Grumpy on Mon Aug 20, 2012 10:18 pm, edited 1 time in total.
Paipo surfer in repose,
Nose on the nose,
No grunting he-man pose.
See how fast he goes!
What is it he knows?
User avatar
Uncle Grumpy
Big Wave Charger
 
Posts: 374
Joined: Mon Sep 19, 2011 12:57 pm
City: San Clemente
State or Province: California
Country: USA

Re: Balsa Twin Fin

Unread postby Uncle Grumpy » Mon Aug 20, 2012 8:52 pm

Thick in the back, thin in the front.
Concave Deck+Parallel Rails+Wide Tail = Fast & Fun

IMGP3727.JPG


The dark line on this side of the right stringer is part of the void I had to fill....

IMGP3729.JPG


I didn't get any pictures during the glassing, my camera went haywire and it's so messy anyway..
This shot's after the intial lamination.
IMGP4063.JPG
Paipo surfer in repose,
Nose on the nose,
No grunting he-man pose.
See how fast he goes!
What is it he knows?
User avatar
Uncle Grumpy
Big Wave Charger
 
Posts: 374
Joined: Mon Sep 19, 2011 12:57 pm
City: San Clemente
State or Province: California
Country: USA

Re: Balsa Twin Fin

Unread postby Uncle Grumpy » Mon Aug 20, 2012 8:58 pm

I never got to take pics of the fin shaping, due to the camera gone wonky but here's a shot of the initial fin glass job.

IMGP4065.JPG


My SWIMPAL has run off with my new camera so I'll finish this tomorrow with shots of the completed board.........
Paipo surfer in repose,
Nose on the nose,
No grunting he-man pose.
See how fast he goes!
What is it he knows?
User avatar
Uncle Grumpy
Big Wave Charger
 
Posts: 374
Joined: Mon Sep 19, 2011 12:57 pm
City: San Clemente
State or Province: California
Country: USA

Re: Balsa Twin Fin

Unread postby GeoffreyLevens » Tue Aug 21, 2012 10:16 am

Looking good! Very interested in getting your ride report since you usually ride alaia type boards yes? so you have a particular perspective and a feeling/response you are used to that is different from most. Maybe kind of funny to say "most" in terms of paipo riders since the entire world crew isn't really that big of a sample (omitting standard bodyboards as they are just that, standard and dime a dozen)
GeoffreyLevens
Big Wave Charger
 
Posts: 324
Joined: Sat Sep 17, 2011 9:58 am
Location: Paonia, Colorado
City: Paonia
State or Province: Colorado
Country: USA

Re: Balsa Twin Fin

Unread postby Uncle Grumpy » Tue Aug 21, 2012 10:43 am

Yeah the alaia' s are my go to boards because they work so well in our typical small waves.
I'll be using this board for the days when it gets too big or grindy for me to ride an alaia, so you might have to wait a while for a ride report.
Finished pics to follow.
Paipo surfer in repose,
Nose on the nose,
No grunting he-man pose.
See how fast he goes!
What is it he knows?
User avatar
Uncle Grumpy
Big Wave Charger
 
Posts: 374
Joined: Mon Sep 19, 2011 12:57 pm
City: San Clemente
State or Province: California
Country: USA

Re: Balsa Twin Fin

Unread postby GeoffreyLevens » Tue Aug 21, 2012 10:50 am

Just for fun sometime though you might get inspired (ya never know) to take it out on a smaller, "more typical" day, just to see.... ;)
GeoffreyLevens
Big Wave Charger
 
Posts: 324
Joined: Sat Sep 17, 2011 9:58 am
Location: Paonia, Colorado
City: Paonia
State or Province: Colorado
Country: USA

Re: Balsa Twin Fin

Unread postby Uncle Grumpy » Tue Aug 21, 2012 11:09 am

Finished.
Picture 036.jpg


Picture 039.jpg


43.25" X 18.25" X 1.25"

Picture 040.jpg
Last edited by Uncle Grumpy on Tue Aug 21, 2012 11:18 am, edited 1 time in total.
Paipo surfer in repose,
Nose on the nose,
No grunting he-man pose.
See how fast he goes!
What is it he knows?
User avatar
Uncle Grumpy
Big Wave Charger
 
Posts: 374
Joined: Mon Sep 19, 2011 12:57 pm
City: San Clemente
State or Province: California
Country: USA

Re: Balsa Twin Fin

Unread postby Uncle Grumpy » Tue Aug 21, 2012 11:16 am

Details.
Brownie Points to all those who can identify the logo.

Picture 042.jpg


Glassed on leash loop.

Picture 043.jpg


Ready to ride.

Picture 044.jpg
Paipo surfer in repose,
Nose on the nose,
No grunting he-man pose.
See how fast he goes!
What is it he knows?
User avatar
Uncle Grumpy
Big Wave Charger
 
Posts: 374
Joined: Mon Sep 19, 2011 12:57 pm
City: San Clemente
State or Province: California
Country: USA

Re: Balsa Twin Fin

Unread postby Uncle Grumpy » Thu Aug 23, 2012 5:10 pm

A couple more pictures.
Shot under the lights of SHF

DSCF1047.jpg


DSCF1051.jpg
Last edited by Uncle Grumpy on Fri Aug 24, 2012 11:42 am, edited 1 time in total.
Paipo surfer in repose,
Nose on the nose,
No grunting he-man pose.
See how fast he goes!
What is it he knows?
User avatar
Uncle Grumpy
Big Wave Charger
 
Posts: 374
Joined: Mon Sep 19, 2011 12:57 pm
City: San Clemente
State or Province: California
Country: USA

Next

Return to Paipo Board Design & Building

Who is online

Users browsing this forum: No registered users and 1 guest

cron