Did any one ever thought in chambering a regular blank??
What i’m thinking is skinning the blank,cut the outline and then cut chambers in the both sides (like the pic in the attachment) and then glue wooden skins like regular HWS in the deck and bottom then shape the rails and glass normally!
What do you think??Good idea, not so good idea or stupid idea??I think that it can improve the flex and reduce height…
Thank you all,sorry about my englis
Looks like another way to skin the cat. No reason not to do it. Give a report if you do.
Howzit romeublue, I don’t think it’s such a good idea since it will weaken the core strength and with no outer skin strength like balsa added you are asking for some horrendous denting or possiblly goimg through the deck if to much pressure is applied. Aloha,Kokua
kind of similar to what daniel hess is doing in san francisco, with an eps interior frame and wood on the outside and rails. here is a thread he started
the daniel’s board its beautiful…i realy love to try this method but with PU foam and no wooden rails, just foam…
I guess that the fragility of the board depends of the size and quantity of the chambers…
Here’s a hollow foam board I built…
Leftover foam from a boat project…
(above) Nose detail…
(above) Tail detail with fin box in place…
(above) Laminating the bottom…
(above) Ready for hot coat…
More at:
that’s unreal , Paul !!
…how does it ride , is it strong enough ??
cheers !
Ben
Paul, my gosh, that’s beautiful! Do you call it the Paulomon?
Was that a recent project? Are the skins flat panels of CF & glass or is there a core (wood, thin foam, etc.) to the skins? Did you make the skin panels first & then attach them after they’d cured? I’d really apreciate some words about the process…
Thanks for posting that 
Back in the late 80s or early 90s at the glass shop I was working at, somebody brought in some shaped blanks that had cylindrical chambers cut perpendicular to the stick filled with of all things-ping pong balls for strength. The blanks where defintely lighter. I think they where glassed with that M2 cloth that was the happening new thing at the time. I never heard on how the boards worked.
Looks like canoe strip planking fused with aerospace engineering. I checked out your website. I think I got to play my “coolest yet” card on this one.
That board was made 2 years ago…An experiment…
The materials are cheap blue and pink foam from Home Depot, laminated with Epoxy and Carbon Fiber cloth…
The board shape is a “pig”…The bottom is a full “hull” rolled bottom…Very flat rocker…All designed that way…Eccentric yes, but it meets some of my needs…
The skins are foam planed to 1/8", laminated in & out with CF…The skins are first laminated on the inside then applied to the frame the next day…After both skins are on, the rails were built out with foam…Shaping the rails comes next with just a brief sweep with sandpaper over the deck & bottom…The CF exterior glassing makes it very stiff and strong…The way I like 'em…
The board is very fun to ride…The wide tail picks up waves easy…The flat rocker goes fast and the rolled bottom keeps it all loose…Ask Kirk Putnam…
damn, Paul, is there anything you haven’t made one of that’s hollow? You are amazing.
and do you have a job? a wife? how do you find the time?
Thanks, Paul. You resawed XPS & then put it through the thickness planer? - brilliant. Has to be 1/10 the cost of d-cell and 1/5 the cost of balsa. Hell on blades, I bet. Its a great board & a wonderful exercise. I’ve been thinking of how to do the hollow carbon deal and you’ve helped me along quite a bit today I like the shape too, I’m a Velzy fan, so thin, flat, smooth round bottom, and hips all work for me (dang, that could describe a surfboard or my wife!) Looks like about a 9’2"? What fin do you have in it?
Paul’s stuff is killer…yeah, you bet…so is his wood work,check it out.
years ago about 1980 i picked up a board at a garage sale that was hollow. it was a single fin about 6ft 4 orange on top and green on bottom made by hollow wave.it had a small plug in the nose and was made of a honeycomb constuction you could take out to drain the water out of it.the thing was tough as nails used to take it to surferspoint in ventura and toss it on the rocks made one hell of a noise but wouldn`t even scratch it . the cool thing was if it was a big day and take off was a problem you could pull the plug suck in a couple of gallons of water and when you were taking off the water would rush to the nose a give it an extra push when you were paddling.i used it primarily as a back up board when the line up was gettin fierce. you have more fun if your board cant get hurt
a job?
Remodeling finish carpenter / contractor…
a wife?
22 years and going strong…
how do you find the time?
Establish priorities…
Thanks, Paul. You resawed XPS & then put it through the thickness planer? - brilliant. Has to be 1/10 the cost of d-cell and 1/5 the cost of balsa. Hell on blades, I bet. Its a great board & a wonderful exercise. I’ve been thinking of how to do the hollow carbon deal and you’ve helped me along quite a bit today
I like the shape too, I’m a Velzy fan, so thin, flat, smooth round bottom, and hips all work for me (dang, that could describe a surfboard or my wife!) Looks like about a 9’2"? What fin do you have in it?
Planing foam on a surfacing planer is easy on blades…after all, it’s only foam…
I’m glad that helped with you prospective hollow foam board…
Beware that the frame and skins are maleable until the outside is glassed…
Alignment is critical, more-so than with wood…
Don’t let it twist on you…
I had a mutated Liddle / Velzy combo in mind when I designed it…
The board does have very thin, eggy rails…
It finished out at 9’2"…
I run it with a stock 9" TrueAmes flex fin that I re-foiled…
Painted with Imron…
Did any one ever thought in chambering a regular blank??
Lance Collins at Wave Tools did it way back in the early eighties. He would cut the blank in half along the stringer and remove the stringer. Then he would bore holes horizontally through the blank, and through the stringer. These were pretty big holes, some seemed 2" in diameter. Then he would glue everything back up. So essentially, he had a horizontally chambered blank.
They were super light…way ahead of there time. But I heard that they weren’t too durable. All the Wave Tools guys tried them out — Danny Kwock, Preston Murray, Jeff Parker, etc.
