Search found 102 matches

by 24Dave
Fri Dec 11, 2015 3:25 pm
Forum: Journals: Log Your Ski Building Progress
Topic: The next one will be better...
Replies: 26
Views: 12026

Hey probs are you going to laminate that core in two steps to keep the resin out of the honeycomb cells? There is a type of fiberglass/pp veil layer that keep resin from filling in the cells from the top for one step laminating but I haven't found it anywhere. see http://www.compositesworld.com/arti...
by 24Dave
Tue Nov 17, 2015 9:39 am
Forum: Ski/Snowboard Design and Layup
Topic: veneer top sheet cap
Replies: 4
Views: 2938

By masking tape do you mean the tape used to join sheets of veneer? I have never used it but you put the side with the veneer joint tape facing down. Otherwise don't use masking tape it absorbs resin and becomes part of the laminate. Flash tape can be used in a lay up and removes well without absorb...
by 24Dave
Fri Nov 06, 2015 8:55 am
Forum: Journals: Log Your Ski Building Progress
Topic: Through the thorns to the stars
Replies: 128
Views: 42185

a type of tape called flash tape or flash release tape (it is usually blue, sometimes green) for use in composite work seals the top of an insert off really well. The tape releases clean even after heat cure and doesn't let resin in at all. Put the tape on the insert then cut around it with a sharp ...
by 24Dave
Thu Oct 22, 2015 1:33 pm
Forum: Materials and Supplies
Topic: Where we can find spread tow carbon fiber in America?
Replies: 8
Views: 4274

thanks for chiming in, It looks like the huntsman brand is a good one, I'm going to try and find that one here in the US. I did learn that millipascals per second are the same unit as centipoise, good fun. Rhyme, It looks like the TAP has a viscosity of 450-550 depending on the hardener used. That's...
by 24Dave
Tue Oct 20, 2015 8:44 am
Forum: Materials and Supplies
Topic: Where we can find spread tow carbon fiber in America?
Replies: 8
Views: 4274

FYI on textreme: it presses great at higher psi's with even thicker low viscosity resins, but if you are vacuum bagging, you need a high viscosity resin and need to ensure that you have scraped and then rolled any excess resin out from under the laminate. It really doesn't let resin through the fabr...
by 24Dave
Mon Oct 19, 2015 8:43 am
Forum: Materials and Supplies
Topic: Canadian composite suppliers?
Replies: 10
Views: 3831

I imagine you are trying to shop in CA to avoid the conversion rate. That said I have found the best deals and awesome service from Soller Composites here in the US and their prices might overcome the exchange rate. Just wanted to plug them here for the great deals over the years.
by 24Dave
Mon Oct 19, 2015 7:57 am
Forum: Ski/Snowboard Design and Layup
Topic: Rubber up
Replies: 3
Views: 2335

Glissade snowboards used to do that. Their boards did seem damp, but I pretty much only rode them in pow and a 185cm at that so hard to say what the effect really was.
by 24Dave
Tue Sep 15, 2015 9:54 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: makeshift hotbox
Replies: 16
Views: 7178

third, I use the one inch thick pink rigid insulation panels from Home depot, but use 3 inch wood screws they pull the pieces together snug, hold pretty well and you can lift the box off and put it over your working surface. I just made the sides and a top piece. I just let the lid sit on top with s...
by 24Dave
Mon Sep 14, 2015 3:11 pm
Forum: Materials and Supplies
Topic: Snowboard inserts
Replies: 3
Views: 2497

If you cant find the magnetic version, or you are filing down longer versions, you can also peel the cap off with a sharp blade, drop a cut section of a finish nail in there and the put the cap back on, the little cylindrical strong magnets (from home depot) lock right on to the insert then.
by 24Dave
Mon Sep 14, 2015 11:29 am
Forum: Materials and Supplies
Topic: why Paulownia?
Replies: 12
Views: 8684

some pics of resin flowing through paulownia. Have another board coming through where I press the base then profile and vacuum the top laminates on later. In this first photo you can see how resin flowed up through a 9mm portion of the core. https://farm6.staticflickr.com/5697/20763816294_d45c862105...
by 24Dave
Tue Sep 08, 2015 11:48 am
Forum: Materials and Supplies
Topic: Where we can find spread tow carbon fiber in America?
Replies: 8
Views: 4274

I second composite envisions for good buying experience. This fabric is so easy to work with, you can cut the exact outline of your board/ski. The binder keeps it together almost like a sheet of paper. I feel like you have to work resin into it from both sides and scrape the excess off both sides to...
by 24Dave
Mon Jun 15, 2015 10:47 am
Forum: Ski/Snowboard Design and Layup
Topic: Foam Cores?
Replies: 7
Views: 4360

yep, but Jamestown prices on everything are a bit silly. Try http://fiberglasssupply.com/Product_Cat ... rials.html
by 24Dave
Thu Jun 11, 2015 10:32 am
Forum: Ski/Snowboard Design and Layup
Topic: Foam Cores?
Replies: 7
Views: 4360

CHris, It's too heavy at 10lbs, balsa can be lighter and is much stronger. start googling Divinycell, last a foam, these are lighter 2 to 4, 6 pounds a cubic foot, well known about in the composites industry and probably what rossignol has used for so long. Sign foam is probably not engineered for b...
by 24Dave
Mon Apr 27, 2015 7:52 am
Forum: Ski/Snowboard Design and Layup
Topic: splitboard hardware
Replies: 13
Views: 7514

https://farm8.staticflickr.com/7702/17264883745_2af64e572c.jpg I filed these out a bit of 1/8th thick 7075 alu from Macmaster-Carr. It helps to make the shape curved instead of straight lines in case they end up lining up not exactly parallel. I start by drilling 1/4 inch holes in the alu to make t...
by 24Dave
Fri Apr 24, 2015 2:01 pm
Forum: Ski/Snowboard Design and Layup
Topic: Thin white layer to stop carbon showing through?
Replies: 9
Views: 4954

good to know it is still a pain to finish clean like kevlar, thanks for posting!