Search found 105 matches

by 24Dave
Wed Dec 11, 2019 11:13 am
Forum: Ski/Snowboard Design and Layup
Topic: Snow Surf - Ptex to full wood core
Replies: 2
Views: 229

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: 229

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: 109

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: 896

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: 2
Views: 575

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: 15
Views: 1667

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: 3871

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: 3871

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: 3871

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: 61
Views: 15662

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: 2754

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.
by 24Dave
Fri Mar 23, 2018 7:59 am
Forum: Ski/Snowboard Design and Layup
Topic: Why not completely replace fiberglass with carbon?
Replies: 7
Views: 2861

I think an interesting all conditions upgrade to the 19 or 21 ounce triax might be like a layer of 4.7 ounce HS (high strength, not high modulus) Textreme carbon at 45/45 or 0/90 next to the core and 6 ounce unidirectional S glass or basalt lengthwise outside of that. Still might explode, but that's...
by 24Dave
Fri Mar 23, 2018 7:45 am
Forum: Ski/Snowboard Design and Layup
Topic: Why not completely replace fiberglass with carbon?
Replies: 7
Views: 2861

I've made heaps of powder boards in all carbon, but usually with stiff cores and tons of rocker. I love them. But I pick my days here in Utah, pretty much just riding fantastic backcountry conditions. On a normal profile core one problem that you may encounter is compressive failure of carbon on the...
by 24Dave
Thu Feb 08, 2018 10:39 am
Forum: Journals: Log Your Ski Building Progress
Topic: HB (Hansen Boards) 2018
Replies: 5
Views: 2066

really good looking topsheet work Akiwi, touring skis are really classy looking!
by 24Dave
Thu Dec 21, 2017 3:21 pm
Forum: Ski/Snowboard Design and Layup
Topic: soak in colour to/etch/stain/colour/dye veneer under vacuum
Replies: 6
Views: 1781

Dyed veneers shouldn't be too hard to find. I have some 36" long pieces from here http://www.dyed-veneer.com/dyed_veneers.aspx haven't used them yet but they look very nice, I have the blue, light blue and blue green colors, and some black to make pinlines. the grain on the koto wood looks great, si...