Search found 491 matches

by pmg
Fri Mar 07, 2025 7:29 am
Forum: Journals: Log Your Ski Building Progress
Topic: Round Top skis 19/20
Replies: 79
Views: 103829

Re: Round Top skis 19/20

Regarding "too soft": this is less a camber issue than your layup. Camber more changes how actively the ski engages into the new turn, but hardly changes how soft or hard a ski feels. My skis were always hard enough but sometimes lacked edge grip in icy conditions. I fixed this by reducing...
by pmg
Sun Feb 02, 2025 6:54 am
Forum: Ski/Snowboard Design and Layup
Topic: De-camber Ski by adding uni in full rocker mould
Replies: 2
Views: 6587

De-camber Ski by adding uni in full rocker mould

Hi, unfortunately, my new touring ski has way too much camber. But they are pretty soft. So I came up with an Idea: I could make my mould have full rocker shape, and then press some additional uni carbon on top. This would mean that this additional layer tries to "pull" up the ski into a f...
by pmg
Thu Jan 09, 2025 11:14 am
Forum: Ski/Snowboard Design and Layup
Topic: Flex stiffness increase Uni vs. Biax. Experiences?
Replies: 1
Views: 3080

Flex stiffness increase Uni vs. Biax. Experiences?

Hi, after achieving good results with more Biax ( http://www.skibuilders.com/phpBB2/viewtopic.php?t=6264 ) to achieve more edge grip on icy conditions, I want to further increase Biax and reduce Uni fibres. As I want to keep the stiffness about the same, it would be very interesting to know how much...
by pmg
Sat Jan 04, 2025 11:59 am
Forum: Journals: Log Your Ski Building Progress
Topic: Round Top skis 19/20
Replies: 79
Views: 103829

Re: Round Top skis 19/20

There is also skibaumarkt.de - a german supplier offering Bcmop flax products. I use them im all my skis and love the dampening they add.
by pmg
Sat Jan 04, 2025 11:57 am
Forum: Ski/Snowboard Design and Layup
Topic: Achieve extreme edge grip that race skis have
Replies: 7
Views: 12095

Re: Achieve extreme edge grip that race skis have

After building the ski with additional 320g/m² Biax glass, there definitely is a good improvement to the edge grip. Even in icy conditions, I really like how the edges grip. So for me, more Biax (and hence increased torsional stiffness) did the job!
by pmg
Fri Jun 21, 2024 11:14 am
Forum: Ski/Snowboard Design and Layup
Topic: Camber centering
Replies: 4
Views: 6456

Re: Camber centering

Hi, as the tip section is longer than the tail section, taking the real middle isn't sensible - the center of the camber will be way too much forward. If you want a "centered" camber, use contact point to contact point (the points where the ski "lay" on a flat surface). Most skis...
by pmg
Wed Jun 19, 2024 10:43 am
Forum: Ski/Snowboard Design and Layup
Topic: About edges, veneer and core
Replies: 4
Views: 6208

Re: About edges, veneer and core

Hi, if you want an egde around the tip, it will be easier to make this way. As I said, bending a single edge around the tip is really hard. Usually, the edge twists a bit when its bent, meaning that the teeth of the edge are not "flat" with the tip, As you are starting to build skis: just ...
by pmg
Wed Jun 19, 2024 10:38 am
Forum: Ski/Snowboard Design and Layup
Topic: Camber centering
Replies: 4
Views: 6456

Re: Camber centering

Hi,

what do you mean with "true center"?

best regards
by pmg
Sat Jun 15, 2024 3:44 am
Forum: Ski/Snowboard Design and Layup
Topic: About edges, veneer and core
Replies: 4
Views: 6208

Re: About edges, veneer and core

Hi, Edges around the tip: Almost everyone here only partly wraps the edges around the tip, because bending them precisely around the tip is very difficult indeed. I would "stop" the edge quite close to the tip, before the real narrow bend around the tip would be. Veneer: thicker veneer add...
by pmg
Mon May 13, 2024 10:10 am
Forum: Journals: Log Your Ski Building Progress
Topic: Round Top skis 19/20
Replies: 79
Views: 103829

Re: Round Top skis 19/20

Hi, I am always using a single layer of 300g/m² uni flax directly below the top sheet - this is how bcomp (the manufacturer of the flax fabrics I use) recommends it. It really has a great dampening effect like this. The carbon I am using is differently from ski to ski, but mostly 300g/m³ triax with ...
by pmg
Thu May 09, 2024 8:16 pm
Forum: Journals: Log Your Ski Building Progress
Topic: Round Top skis 19/20
Replies: 79
Views: 103829

Re: Round Top skis 19/20

Hi, some things come to my mind regarding the weight: I don't think your skis are heavy regarding their surface area. if you want to use it as touring skis, then yes, they are a bit heavy. You could try to add some lighter wood (e.g. paulownia) to your wood mix. Poplar soaks liquids quite well. In y...
by pmg
Thu May 09, 2024 8:39 am
Forum: Ski/Snowboard Design and Layup
Topic: Extra Biax in Tip Area for increased torsional stiffness?
Replies: 3
Views: 8179

Re: Extra Biax in Tip Area for increased torsional stiffness?

Yes, thats a different way to do this. But what I am wondering: Did some of you do this? If so, did you like the result?
by pmg
Sun May 05, 2024 10:28 am
Forum: Ski/Snowboard Design and Layup
Topic: Extra Biax in Tip Area for increased torsional stiffness?
Replies: 3
Views: 8179

Extra Biax in Tip Area for increased torsional stiffness?

Hello Skibuilders, I am starting to build some pairs for next winter. Mostly, they are very sportive on-piste skis (66mm underfoot, 72mm underfoot, 84mm underfoot). I tested previous builds as well as serveral factory skis on my workbench. One thing I noticed: When taking the foot area as "zero...
by pmg
Sun Apr 28, 2024 7:49 am
Forum: Ski/Snowboard Design and Layup
Topic: Grinding Stone tick marks
Replies: 2
Views: 12037

Re: Grinding Stone tick marks

When I worked in a ski service, we used a plastic ski wax scraper and ran it over the stone after re-structuring with the diamond. You feel "leftover" stone at once with the scraper, and with modest pressure you can take the "leftover" off. This helped, but it does not guarantee ...
by pmg
Thu Apr 11, 2024 4:24 am
Forum: Aprés Ski Building
Topic: Twisted race ski
Replies: 1
Views: 7848

Re: Twisted race ski

Hello Alan, a 1.5mm gap is definitely way too much, especially for a race ski. It seems the one ski is either a faulty production or it was damaged somehow. I would definitely send the skis back to the reseller and get your money back. I am pretty sure Atomic will back up this opinion. I would not t...