Search found 1344 matches

by vinman
Wed Oct 25, 2017 4:57 pm
Forum: Ski/Snowboard Design and Layup
Topic: Methods to keep core/ base still during press.
Replies: 27
Views: 12815

I've now eliminated base pins for core/base alignment. Just a note. I never had a failure of the core with base pins but it was one of those things that I never really liked but was easy to use. I now use a external "lock and key" method. I think a couple other guys use this, Montucky maybe... So I ...
by vinman
Sun Oct 01, 2017 4:37 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Differential heating
Replies: 8
Views: 2315

As far as glass goes, if you heat the bottom more than the top you will increase camber. I can see changes with 5-7 deg F differential. I have a fixed camber mold with mix and match tip and tail molds with a running length board. Example: If I get 6 mm of camber on on a 183 cm ski, if I shorten the ...
by vinman
Mon Jun 05, 2017 5:20 pm
Forum: Materials and Supplies
Topic: Entropy CLR clear coat
Replies: 10
Views: 2768

I don't bother saving brushes when using epoxy. I just buy cheap brushes, which might be more work in the long run because of loose bristles, dirt and stay fibers that end up in the finish no matter how well I clean them before using them... I've tried vacuuming them, using a fan while combing the b...
by vinman
Sat Jun 03, 2017 1:29 pm
Forum: Materials and Supplies
Topic: Entropy CLR clear coat
Replies: 10
Views: 2768

Entropy CLR is UV stablized.

Parchment paper works great but use spray adhesive to attach it to your top aluminum layer. It will get pulled tight as you apply pressure and minimize bubbles/wrinkles/voids.
by vinman
Sun Apr 30, 2017 1:15 pm
Forum: Materials and Supplies
Topic: Entropy CLR clear coat
Replies: 10
Views: 2768

Just one coat. If you do it right, it should be nice, even and glossy.

Also I find it chips less if you do a shoulder bevel. I use 15 deg sidewall bevel and a 45 deg shoulder bevel. Along that top edge of the sidewall.
by vinman
Sat Apr 29, 2017 5:52 pm
Forum: Materials and Supplies
Topic: Entropy CLR clear coat
Replies: 10
Views: 2768

copied from an older post in another thread Things I've learned about using an epoxy top over wood veneer after about 80 pair or so. Skim coat your veneer with epoxy during pressing to get a consistent color and improve durability. Epoxy your inlays on the backside of the topsheet to decrease the ch...
by vinman
Thu Mar 30, 2017 4:51 pm
Forum: Ski/Snowboard Design and Layup
Topic: Exact center of the ski question for shaping skis
Replies: 11
Views: 3140

To be more clear. I make the center of the sidecut and the height of the camber line up in the same location. I place a line at this point. Folks can use that as a reference for where they want to mount their ski in relation to that mark. If they mount on the line then the boot sole center will be a...
by vinman
Wed Mar 29, 2017 5:54 am
Forum: Ski/Snowboard Design and Layup
Topic: Graphics dilemma
Replies: 26
Views: 6247

In my experience,

Sharpie will run under clear coat epoxy and maybe poly.

The leafing marker might repel epoxy also.
by vinman
Mon Mar 27, 2017 5:40 pm
Forum: Ski/Snowboard Design and Layup
Topic: Graphics dilemma
Replies: 26
Views: 6247

I just need to get a drag knife set up for my cnc......
by vinman
Mon Mar 27, 2017 4:37 pm
Forum: Ski/Snowboard Design and Layup
Topic: Graphics dilemma
Replies: 26
Views: 6247

I make a mask for every gold/silver/copper leaf application.....time consuming...I need a way to cut that time down
by vinman
Mon Mar 27, 2017 2:23 pm
Forum: Ski/Snowboard Design and Layup
Topic: Graphics dilemma
Replies: 26
Views: 6247

I use gold leaf, works well but time consuming.
by vinman
Thu Mar 23, 2017 9:49 am
Forum: Ski/Snowboard Design and Layup
Topic: Ski design discussion
Replies: 24
Views: 6861

The disadvantage to that is if you are a skier with a very narrow stance or build skis for people that tend to ski with a narrow stance, you'll begin to wear thru your veneer and fiberglass and end up with exposed core wood. Having tip spacer there adds a bit more protection to the core in this way....
by vinman
Wed Mar 22, 2017 8:18 am
Forum: Ski/Snowboard Design and Layup
Topic: Ski design discussion
Replies: 24
Views: 6861

I think having wood extend into the tipbwith an interlock style shape on the tip assists in making the ski more stiff in the tip vs. having only tip spacer. The wood in the tip is better able to transfer force into the rest of the core instead of having a tip made of only spacer and FG. Saying this,...
by vinman
Tue Mar 21, 2017 3:17 pm
Forum: Ski/Snowboard Design and Layup
Topic: Exact center of the ski question for shaping skis
Replies: 11
Views: 3140

I measure this on my initial CAD drawing, so this is from a flat plan view reference. If I am designing a freeride/BC/powder ski I tend to set the waist back at least to the 55% measurement when measured as described above to give the ski a bit more float on powder. If I want a ski that is more on-p...
by vinman
Tue Mar 21, 2017 8:44 am
Forum: Ski/Snowboard Design and Layup
Topic: Exact center of the ski question for shaping skis
Replies: 11
Views: 3140

Those are some good threads. I typically place the waist of the ski somewhere between 53%-56% of the ski when measured from the tip. This depends a lot on what type of ski I'm designing. For powder and freerode umm make the tip a bit longer 54-56% range and for all mountain or carving designs I'll m...