Search found 260 matches
- Mon Apr 12, 2010 4:33 pm
- Forum: Ski/Snowboard Design and Layup
- Topic: Carbon Fiber?
- Replies: 18
- Views: 11933
Re: Carbon Fiber?
Glass is not so good in compression which is what I assume the top sheet is under when the ski bends. Is it there just to sandwich the core and protect it? Any advise on carbon and the type, plain, 90 degree or whatever weave? What weight of cloth etc? Thanks for the help. Actually in compression g...
- Wed Apr 07, 2010 12:55 am
- Forum: Ski/Snowboard Design and Layup
- Topic: How to make fish scales
- Replies: 2
- Views: 4502
- Wed Apr 07, 2010 12:46 am
- Forum: Ski/Snowboard Design and Layup
- Topic: Heat and concave bases
- Replies: 16
- Views: 10809
I have built the same exact ski both ways. With and without heat with the same epoxy. I am sorry that you wasted time and material to find out that hot curing resin should not be cured at room temperature: you could just read the documentation coming with the resin, or prepare short samples of resi...
- Mon Mar 29, 2010 1:25 am
- Forum: Ski/Snowboard Design and Layup
- Topic: Experimental Ideas
- Replies: 18
- Views: 11354
I am a bit skeptical about concave base, but skis without edges may be interesting on soft snow: http://www.skibuilders.com/phpBB2/viewtopic.php?t=2306
- Mon Mar 29, 2010 1:21 am
- Forum: Ski/Snowboard Design and Layup
- Topic: Heat and concave bases
- Replies: 16
- Views: 10809
Well, the 787 is going to be very expensive and is a more than a year in late... I do not want to convince to use room temperature curing epoxy, if you like hot pressing just do it, but I think you understood my point: if room temperature curing is good enough for gliders, then it is good for skis t...
- Tue Mar 16, 2010 5:47 pm
- Forum: Ski/Snowboard Design and Layup
- Topic: Heat and concave bases
- Replies: 16
- Views: 10809
...I think people are experiencing a number of problems with this type of method. One being to hot and the other being to hot to fast. You have allot of different materials all expanding and contracting at different rates. I know, that is why I would suggest to press at room temperature, but I unde...
- Mon Mar 15, 2010 4:11 pm
- Forum: Ski/Snowboard Design and Layup
- Topic: Heat and concave bases
- Replies: 16
- Views: 10809
- Mon Mar 15, 2010 1:11 am
- Forum: Ski/Snowboard Design and Layup
- Topic: skis without base and edges
- Replies: 4
- Views: 4726
skis without base and edges
Recently I had the occasion to join a telemark festival here in Japan: http://www.telemakuri.com/ Pictures can be found here: http://www.skiforum.it/forum/showthread.php?t=40623 It was great fun even if the snow was wet (raining the first day, 15 cm of powder on the second day). During the festival ...
- Mon Mar 15, 2010 12:50 am
- Forum: Ski/Snowboard Design and Layup
- Topic: Heat and concave bases
- Replies: 16
- Views: 10809
- Sun Jan 10, 2010 9:25 pm
- Forum: Ski/Snowboard Design and Layup
- Topic: lightest glass that is safe to build with?
- Replies: 60
- Views: 28746
In the first skis I made (in 2004) I used a very thick plywood core (4 mm at tip and tail and 16 mm in the middle), and I used 400 g/m2 UD plus 300g/m2 biax glass below the core and nothing above the core (or only biax above the core in some other pairs). It is clear that the weight of the glass wil...
- Mon Dec 21, 2009 8:55 pm
- Forum: Ski/Snowboard Design and Layup
- Topic: Epoxy squeeze out in a vacuum - does it happen
- Replies: 12
- Views: 8318
Here you can find few pictures about vacuum pressing: http://www.skibuilders.com/cpg/thumbnails.php?album=8 http://www.skibuilders.com/cpg/thumbnails.php?album=6 I used a MDF mold; I used no topsheet, but I put a plastic film above the last glass layer (I will remove the film after curing) and a lay...
- Mon Dec 21, 2009 8:44 pm
- Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
- Topic: heating the press????
- Replies: 12
- Views: 8401
SHIF wrote:I guess durability and strength are more important for a glider than for a pair of skis. Epoxy resins for gliders are cured at room temperature, then annealed at 55 degree centigrades...thefreshpimpofbigair wrote:...
Read question #1 in the Ski
Builders article:
http://www.skibuilders.com/articles/epoxy.shtml
-S
- Mon Dec 21, 2009 8:29 pm
- Forum: Ski/Snowboard Design and Layup
- Topic: simmer down now
- Replies: 8
- Views: 6512
- Mon Dec 21, 2009 8:17 pm
- Forum: Journals: Log Your Ski Building Progress
- Topic: Leaf Skis
- Replies: 71
- Views: 57590
- Sat Nov 07, 2009 8:05 pm
- Forum: Journals: Log Your Ski Building Progress
- Topic: full manufacturing process: from the wood to the snow
- Replies: 20
- Views: 29741
1) To make the camber, I put a wood block under the mid-ski and weights over tip and tail. Check in my gallery, under Davos. 2) I think steps are not good: mechanical stresses would concentrate there and it may break. At least you should smooth the steps. 3) I made my first pair of plywood skis befo...