Search found 45 matches

by FlamingYeti
Tue Mar 10, 2015 7:06 am
Forum: Ski/Snowboard Design and Layup
Topic: wood/carbon core matrix
Replies: 6
Views: 6720

A while ago, we did this idea of vertical laminates between the core stringers and it worked out fairly well. For the process, we essentially did a pre-cure of the carbon. We put 12 K triax Carbon in the press with some epoxy and just cured a big sheet of it, then cut it up on the table saw and lami...
by FlamingYeti
Thu Dec 11, 2014 2:23 pm
Forum: Aprés Ski Building
Topic: Anniversary
Replies: 8
Views: 7561

Anniversary

Just wanted to point out that I noticed that today is the 10 year anniversary of this forum. The user "administrator" was registered on December 11, 2004. In that time, 44881 articles have been posted. Nice job everyone.
by FlamingYeti
Mon Sep 29, 2014 2:30 pm
Forum: Ski/Snowboard Design and Layup
Topic: Wood sidewall preference
Replies: 28
Views: 23081

Completely out of curiosity, has anybody ever looked into using Australian Buloke for sidewalls? Possibly some of you guys down under? In the US, it seems you can only buy it in chunks big enough for knife handles. I would imagine that full sidewalls would be hella expensive and you would need to re...
by FlamingYeti
Tue Sep 23, 2014 3:30 pm
Forum: Ski/Snowboard Design and Layup
Topic: Wood sidewall preference
Replies: 28
Views: 23081

"FY, that LL stuff isnt vert lamed is it?" No, I don't believe so. It's strange. As you can see in the picture on the Lumber Liquidators website, it is brown and yellowish. Each part that is yellow is a "chunk" of bamboo and each part that is brown is a "chunk." So it'...
by FlamingYeti
Mon Sep 22, 2014 8:59 am
Forum: Ski/Snowboard Design and Layup
Topic: Wood sidewall preference
Replies: 28
Views: 23081

Not technically "wood," but, we have been using strand woven bamboo for our sidewalls. In terms of the Janka hardness test, Ipe is about 3700. The bamboo we have been getting is about 2900 on the Janka (still pretty damn hard). It works fine in terms of tools and we can just buy it at Lumb...
by FlamingYeti
Fri May 16, 2014 7:39 am
Forum: Ski/Snowboard Design and Layup
Topic: Vertically Laminated Composites
Replies: 25
Views: 16952

Interesting. I tried putting one of the cores through the planer once, but it just made a terrifying noise, popped the circuit breaker, burnt the cores, and chipped and dulled the blades significantly.That might have been because of the heavy weight of the fiberglass, though. It could be worth anoth...
by FlamingYeti
Fri May 16, 2014 5:52 am
Forum: Ski/Snowboard Design and Layup
Topic: Vertically Laminated Composites
Replies: 25
Views: 16952

Dtrain, funny you say that now because profiling those cores was one of the biggest pains in the ass I've ever experienced. With the fiberglass, I was afraid it would break our planer or just go through like 4 sets of blades. So, I ended up using about 8 36 grit sanding belts on the belt sander per ...
by FlamingYeti
Wed May 14, 2014 10:41 am
Forum: Ski/Snowboard Design and Layup
Topic: Vertically Laminated Composites
Replies: 25
Views: 16952

Didn't really think about how different the homemade horizontal composite ones should have been. Strange. There must have been some problem with epoxy or hardener. We may have done uneven ratios or it might have been old. I'll look into that. I'm not sure what weight uni Icelantic uses. Like I said ...
by FlamingYeti
Tue May 13, 2014 1:06 pm
Forum: Ski/Snowboard Design and Layup
Topic: Vertically Laminated Composites
Replies: 25
Views: 16952

MM, Thanks for the questions. As for the first thing about isotropic-ness, that is actually a mistake. Totally screwed that up, but thanks for pointing it out. I left out a lot of things because I had a certain word limit for each category. I really wanted to include more on core thickness and desig...
by FlamingYeti
Tue May 13, 2014 5:55 am
Forum: Ski/Snowboard Design and Layup
Topic: Vertically Laminated Composites
Replies: 25
Views: 16952

Vertically Laminated Composites

So about two years ago, I posted an idea of laminating the composites vertically in between the core stringers. A few of you said you had always wanted to do it. Well, I finally did it with 22oz Triaxial Fiberglass. Also, since I am 16, I was eligible for signing up for the Google Science Fair. It i...
by FlamingYeti
Fri Apr 04, 2014 11:08 am
Forum: Ski/Snowboard Design and Layup
Topic: Question regarding base graphics
Replies: 12
Views: 9756

Thanks man. 1. When we epoxied the fabric to the base, essentially what I did was put a piece of sheet metal above and below the plastic, then just put everything in the garage I could find that was about the same length and was heavy on top of it all (probably ended up being 250 lbs in all). If I w...
by FlamingYeti
Wed Apr 02, 2014 4:02 pm
Forum: Ski/Snowboard Design and Layup
Topic: Question regarding base graphics
Replies: 12
Views: 9756

So after 15 days on the skis I did this with and one crash going 60 mph in which most of the energy was focused directly on the edge, these skis are still holding together quite nicely. It seems as if this experiment has miraculously worked. By the way, the last time I posted on this particular thre...
by FlamingYeti
Tue Feb 25, 2014 4:40 pm
Forum: Ski/Snowboard Design and Layup
Topic: GaryWayneSkis
Replies: 2
Views: 3316

I hate being that guy, but in terms of 3D base design:
http://www.skibuilders.com/phpBB2/viewtopic.php?t=4479
by FlamingYeti
Wed Nov 20, 2013 1:18 pm
Forum: Ski/Snowboard Design and Layup
Topic: Forward shift in camber
Replies: 15
Views: 11703

Is the thickest part of your core at the camber point? Yes. Or at least it is supposed to be. We ran out of belts for the belt sander part of the way through the final stages of profiling. So, near the tail, it's about .4 mm thicker than we designed it to be. At camber point, the profile is pretty ...
by FlamingYeti
Wed Nov 20, 2013 8:57 am
Forum: Ski/Snowboard Design and Layup
Topic: Forward shift in camber
Replies: 15
Views: 11703

So after we pressed an identical pair with symmetrical composites, the "creeping camber" definitely went down a bit. Instead of being 35 cm forward of centerline, it's now about 15-20 cm. We are now tossing out the core nails since that is just a bad idea. In this last pair, the nail decid...