Search found 124 matches

by 24Dave
Tue May 04, 2021 7:43 am
Forum: Materials and Supplies
Topic: Low Density Sidewalls
Replies: 4
Views: 4206

Re: Low Density Sidewalls

I think about this a fair bit. Cap construction with a thin strip of harder wood on the edge to resist edge compression from impacts is definitely the lighter & functional way to go. However most approaches for small scale building require a lot more work in tooling. Plastic sidewalls really mak...
by 24Dave
Fri Oct 23, 2020 10:40 am
Forum: Ski/Snowboard Design and Layup
Topic: Which fiber is best at retaining screws
Replies: 5
Views: 2347

Re: Which fiber is best at retaining screws

I believe Trab uses a carbon fiber plate, which is numerous layers of carbon pressed with a very high density. Vinman is right, if you have a Nomex core under the bindings and have laminated the ski already, you should probably router out some channels and epoxy in some hardwood strips, then cover t...
by 24Dave
Tue Oct 06, 2020 3:32 pm
Forum: Ski/Snowboard Design and Layup
Topic: Splitboard "tounge and groove" concept
Replies: 11
Views: 3128

Re: Splitboard "tounge and groove" concept

personally, I think this is a solution for which there was not a problem. If you are riding a lot on hardpack with a split (why?), overlapping pucks and maybe an extra overlapping clip in between the feet are probably more than enough to keep the halves in alignment. Look at the overlapping metal pi...
by 24Dave
Tue May 05, 2020 9:53 am
Forum: Ski/Snowboard Design and Layup
Topic: UD Carbon strings on a carrier foil
Replies: 5
Views: 3856

Re: UD Carbon strings on a carrier foil

I have found this product really nice to work with. The 2.9 oz weight is super thin and you can cut any width or shapes you like for targeted reinforcement https://store.acpsales.com/products/2382/carbon-fiber-uni-web-unidirectional-fiber the 4.1 oz uni from Soller composites is also a great product...
by 24Dave
Wed Dec 11, 2019 11:13 am
Forum: Ski/Snowboard Design and Layup
Topic: Snow Surf - Ptex to full wood core
Replies: 3
Views: 3782

Re: Snow Surf - Ptex to full wood core

hmmm, If you are making a mold to shape a wet piece of wood with convcave areas, my thoughts are that you might also want to try laminating some fiberglass between the ptex and a flexible 1/8 veneer sheet of wood or two into that same mold. It might be easier and a better bond between your ptex and ...
by 24Dave
Mon Dec 09, 2019 9:50 am
Forum: Ski/Snowboard Design and Layup
Topic: Hollow P-Tex
Replies: 3
Views: 3033

Re: Hollow P-Tex

Hannes,
I had a similar issue when my vacuum hose partially collapsed since it was not able to withstand the heat in a curing oven.
by 24Dave
Fri Dec 06, 2019 10:51 am
Forum: Ski/Snowboard Design and Layup
Topic: FYI Innegra shrinkage in heat cure
Replies: 0
Views: 4304

FYI Innegra shrinkage in heat cure

I have started to experiment with various Innegra fabrics that I have. One thing I have learned is that while you can add a 1 or 1.5 inch strip of 2 ounce plain weave under your edges only without incident, if you are covering an entire board/ski, you have to have a symmetrical layup for higher heat...
by 24Dave
Mon Aug 26, 2019 11:07 am
Forum: Journals: Log Your Ski Building Progress
Topic: Prototype 1
Replies: 4
Views: 5785

Re: Prototype 1

Nice one Hoops! Wait, you have a CNC machine, but a trash can for a workbench, hilarious, and I love it! An easy solution for getting a stronger epoxy cure would be to get some foam paneling, screw the panels together in a box just a little bigger than your press. Blow heat in at about 300F with two...
by 24Dave
Mon May 06, 2019 6:55 pm
Forum: Yard Sale (non commercial)
Topic: Hypothetical: paulownia lumber
Replies: 4
Views: 4564

Re: Hypothetical: paulownia lumber

Seems like there might be a retail market. Since Paulownia barn closed, what 10, 15 years ago, it's been a struggle to find a steady but small supply that is good quality. I think the market price went through the floor with factories that use it buying it by the container load from China. There is ...
by 24Dave
Mon May 06, 2019 6:36 pm
Forum: Ski/Snowboard Design and Layup
Topic: Pre-treating paulownia or balsa core
Replies: 21
Views: 12670

Re: Pre-treating paulownia or balsa core

I've seen average viscosity resin move through 8-10mm of paulownia when cured at 140 F. End grain balsa is commonly sealed in commercial applications, I've never used it. I have also sealed cores to keep them light. Nothing technical to it. Use a squigee, spread resin across part of your core then s...
by 24Dave
Thu Aug 23, 2018 7:07 am
Forum: Ski/Snowboard Design and Layup
Topic: Cutting out flesh on tip/tail with no edge
Replies: 21
Views: 12146

Huh, I haven't noticed that at all with the belts I have been using. There are probably better belts out there with smoother joints than what you have right now.
by 24Dave
Wed Aug 15, 2018 10:59 am
Forum: Ski/Snowboard Design and Layup
Topic: Cutting out flesh on tip/tail with no edge
Replies: 21
Views: 12146

yep SHIF discontinued, but still widely available.

mammuth, I have large Triton planer, it is a beast, runs smooth and has had no issues so far.
by 24Dave
Fri Aug 10, 2018 8:18 am
Forum: Ski/Snowboard Design and Layup
Topic: Cutting out flesh on tip/tail with no edge
Replies: 21
Views: 12146

I like to use this little hand held belt sander for any situation like sanding a little flash off. You can hold this sander on edge pretty easily in one hand. I use it quite a bit and it is more compact and cheaper than a larger tool on a floor stand. https://www.homedepot.com/p/Porter-Cable-371-Ser...
by 24Dave
Wed Jun 27, 2018 8:33 am
Forum: Journals: Log Your Ski Building Progress
Topic: WRONG 2017
Replies: 63
Views: 44913

hey Gav, the red board looks great! Regarding approach skis, We rode every approach ski - snowshoe variation we could think of for the decade before splits came out here in Utah in the mid 90s. If you are climbing and breaking trail in good snow they really make little sense. It is just too redundan...
by 24Dave
Fri Mar 23, 2018 8:05 am
Forum: Ski/Snowboard Design and Layup
Topic: Spoon bases?
Replies: 9
Views: 6897

2mm on a board, that's about perfect. My old mold made that, new one doesn't so base prep is easier. But that series of boards were all great.