Search found 260 matches

by davide
Sun Sep 14, 2008 6:31 pm
Forum: Journals: Log Your Ski Building Progress
Topic: summer 08
Replies: 19
Views: 16655

Re: summer 08

i`ve built a slalomskateboard entirely out of 3mm aramid honeycomb in sandwich with 1mm plywood. it works surprisingly well!
Supergeil!!
by davide
Sun Sep 14, 2008 6:26 pm
Forum: Materials and Supplies
Topic: Goode Carbon Fiber Skis
Replies: 11
Views: 7744

The guy who broke the ski in the picture, got the ski stucked under a tree in the snow, fell forward and the binding did not release. Any other skis would have failed. I suppose carbon stingers resist to compressive and tensile forces from the top and bottom layers. Foam is used only as filling mate...
by davide
Sun Sep 14, 2008 6:13 pm
Forum: Ski/Snowboard Design and Layup
Topic: Why damping is so complicated -- WARNING: Physics!!!!!!!
Replies: 9
Views: 5741

To keep it simple: low frequency vibrations (20-60 Hz) are bad, because edges loose grip. High frequency vibrations (KHz) are good, because they give a lively feelings (but it is a matter of taste). To eliminate low frequency vibrations, the most effective way (used in World Cup downhill skis) is to...
by davide
Sun Sep 14, 2008 6:05 pm
Forum: Ski/Snowboard Design and Layup
Topic: vacuum bag + heat blanket
Replies: 3
Views: 2734

You do not need a heat source. Room temperature curing works well.
by davide
Sun Sep 14, 2008 5:59 pm
Forum: Ski/Snowboard Design and Layup
Topic: Tele mounting position with Rockered skis
Replies: 1
Views: 1581

I mounted the bindings so that the 3-pin line in the middle of the ski, as I do usually. On some skis I mount bindings a 2 or 3 cm on the back, mainly for powder. Rocker, fat skis are not done for hardpack. Forget about edges. http://www.skibuilders.com/cpg/albums/userpics/10012/TPX1.jpg http://www....
by davide
Sun Sep 14, 2008 5:51 pm
Forum: Ski/Snowboard Design and Layup
Topic: edges
Replies: 13
Views: 7657

Wait for new fresh snow. Ice skating is done on flat surface, not on slopes.
by davide
Fri May 23, 2008 1:12 am
Forum: Ski/Snowboard Design and Layup
Topic: duckstance!
Replies: 11
Views: 6960

plywood wrote:... i think duckstance doesn`t fit tele, ...
Yes, it does: skied the whole winter with these:
Image
by davide
Wed Mar 05, 2008 10:02 pm
Forum: Journals: Log Your Ski Building Progress
Topic: attila
Replies: 18
Views: 17542

Do you sand the base yourself? 55 mm is indeed not very much, 70 mm was safer. Did you pre-bent the core? I would like to have my equipment here, and try this basalt... Still snow in the Alps? Got a bit warm in the weeks right? In case, You can send them to me, and I will test them in Seki Onsen (ab...
by davide
Sun Feb 17, 2008 9:48 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Vacum press !HELP!
Replies: 8
Views: 5620

stenmark wrote:I have no idea why the pictures doesn't show...?
Copy the link and past it in a new browser window. It always work.

These are mines:
http://skibuilders.com/cpg/thumbnails.php?album=6
http://skibuilders.com/cpg/thumbnails.php?album=8
by davide
Sun Feb 17, 2008 9:44 pm
Forum: Ski/Snowboard Design and Layup
Topic: Epoxy Amounts, rule of thumb?
Replies: 3
Views: 3027

1 Kg (resin+hardener) is more than enough for one pair.
by davide
Sun Feb 17, 2008 9:43 pm
Forum: Materials and Supplies
Topic: Properties of reinforcement fibers
Replies: 21
Views: 22285

Re: fibers

teleman36 wrote:...the zylon under a natural topsheet looks just like the old Rossi Strato burgundy color...
Zylon does not like light, it deteriorates the mechanical properties... Better keep it in the dark.
In addition is not very strong in compression, so it is better to keep the bottom layer only.
by davide
Tue Feb 12, 2008 6:10 am
Forum: Aprés Ski Building
Topic: SIA (Snowsports Industry America) 2008 Report
Replies: 16
Views: 12964

Eh, Megawatts have really funny tips. Basically they have flat tips, like the Armada ARG, but the rocker is huge. The other companies make regular tips plus rocker, so the ski is bent twice. There is something I foget to post, since months. They told me that Salomon, and few other small manufactures...
by davide
Tue Feb 05, 2008 12:34 am
Forum: Test and Trip Reports: How Did They Work?
Topic: testride, babe!
Replies: 59
Views: 49023

plywood wrote:...i skied the gunnars ...
Still on duck stance?
by davide
Tue Feb 05, 2008 12:31 am
Forum: Journals: Log Your Ski Building Progress
Topic: Raven Arks
Replies: 4
Views: 4853

Re: Raven Arks

1. A small leak near one tail reduced my vacuum which may have resulted in the slight concave visible on the bases just inward from the tip and tail spacers. Possible solutions might be using a stethascope or plastic tube to listen for leaks. In addition would a pressure guage connected to the far ...
by davide
Sat Jan 12, 2008 12:03 am
Forum: Aprés Ski Building
Topic: Snowsports Industries of America Tradeshow
Replies: 12
Views: 8041

...The only real preview I've heard is that Rossi will be unveiling a new way of looking at topsheet art. Should definitely be an interesting show. Voila': http://www.skipass.com/articles/saison-07-08/21711-rossignol-sas-seven-artistic-sins.php Cool design and marketing sell more skis than tech and...