“My recommendation would be to laminate, then rout the holes, then
insert, then shape down, then patch, just as if you were putting
fin-area reinforcement down anyway. Guaranteed cleaner job in the end.
That need not be difficult.”
hi josh, i set the boxes, plugs as well before i patch. you save a step. i ripped 2 fins out but never a plug.
salu2
uzzi
hey kyle
heres an old video to how to make the cannon flat board in under 8 hours
http://www.youtube.com/watch?v=fmKwJwAjXdo&feature=channel
and the updated information since the video was done, system is far more refined now
http://paulgcannon.blogspot.com
i use fusion boxes as well
nope not from BC but spent 1974-1990 living and working in seattle skiing whistler alot before it was re-made by the Aspen group into a tourist heaven.
good times and memories of those vancouver/victoria visits..
I asked because I have several boxes of precut rectangles of 6lb precision board for inserts for probox, futures, fusion and ofishl's.
I bought a 4'8' sheet of the stuff awhile back to try instead of airex.
here's the write up on the stuff:
http://www.precisionboard.com/pbht-6.pdf
not sure about the cost of mailing stuff to BC from hawaii but it was a thought that crossed my mind..
I've put 30,000 fin boxes into EPS with no inserts. Mostly O Fish L and some Futures. I've seen maybe two come back. In 1# .... for sure you need it. But 1.5 up, IMO no way. Those fin systems are capped. They don't leak unless you crack the box. Very hard to do when the box is supported by epoxy resin.
Awesome, thanks for the input greg; I’m stoked to use RR. Hopefully the lams go smoothly. I’ve only ever used epoxy for small repairs and one FCS plug replacement. I’m psyched!
I’ve gotta second what GL is saying here. We put a lot of 10" fin boxes into 1 and 1.5 lb EPS for sailboards…talk about a lot of side torque. We used balsa (great compression), high density PU, and one team rider getting major air but still learning how to land ended up with Doug Fir!
But the EPS now is so good compared to the old Western Insulfoam…I use 1.o to 2.5 and do them all the same…Fusion glassed under bottom laminates using Q cell & milled fibers. The flange is strong, light and handles everything thrown at it. The FCS roud plugs suck, are an engineering compromise and demand a lot of extra time and labor that reminds me of banging your head against the walling unnecessarily. If you want to be part of the ‘reinvent the wheel gang’ X2 plugs are your product. If you want to do it once, clean and quickly…Fusion works.
I know the spiel of thru the deck vs. flange, but I’ve repaired too many round plugs punching thru the deck, cracking at the slot corners, and having the plug punch down or rotate from the minimal amount the reinforcing ring provides. I could spend a lot of my time making their system hold up better, but why bother? Life is too short.
GL is right. I would clarify and say that pre-glass, cap-over-flange fin systems (and leash plugs) are the best for for EPS. If you're using Probox, IMO do the install normally but definitely patch over at the end. The Probox route is sufficiently close-tolerance that exotherm shouldn't be a problem.
In 1.5 lb and up, inserts were really only needed when doing the ''normal'' FCS plugs. The Fusion system moves us past that.
MD is right on.
My apologies for not making the distinction between vac bagging a skin onto the core versus hand laminations. Even the round FCS plugs become noticeably stronger when sunk into a high strength exteior skin, however they still can be punched down, crack a deck skin, and are inherently weak at the corner of the slot receptacle where material is minimal.
MD and DS, thanks for all the further clarification! I’m going mostly probox, with one 10.5" box going in also and I’m trying one board with david blake’s surftrux system in it. I’d planned on glassing over the proboxes to be safe, and I’ve got slow hardener to make it a safer install too. I have a board with the fusion system in it and I’m totally happy with those boxes so far; I will do everything I can to avoid the round plugs in the future as I’ve had nothing but headaches from them (often from poor installs on cheap indo boards etc, admittedly).
I’m stoked to not have to worry so much about the extra step in the construction. Now I just need to start cutting foam!
I'm famous for overkill...and I still say an insert will be worth the work, even if I can't argue with GL on the 2lb. core not requiring them.
Here's how I deal with the little round plugs. Thats D-cell H80, twice as dense as PU...AND lined with glass...
Josh
That has GOT to be bombproof. Great way to do it, spread the load..............
For FCS plugs I agree. But for EPS I'll use the FCS box. Then I don't have to insert.
Hey Greg, question...
I've been hesitant to try the Fusion system...I figure it might still be too shallow in 1lb foam...
What's been your experience?
Josh
