What do you guys use as a through bag connector? The best through bag connector is a tire valve for a mag wheel which are about 5.00 at a Napa auto parts store. They are a threaded fitting which get sealed by silicon and big washers on either surface of the bag. With a tiny set of pliers extract th...

[quote="Would this "hobby" kevlar provide the strength of fiberglass or does it look too thin and/or cheap?[/quote] I don't think it would be too useful, there is only enough to put one layer on each side of the skis and it is very expensive, even with the higher strength of the kevla...

Also, this might be a dumb question but, if the vacuum bag was completely sealed, would you have to keep the pump running? I don't really know much about how these vacuums work and was just wondering. If you use the air powered vacuum generator then there is already a hole in the bag unless you use...

I have looked into vaccum presses but they are a bit expensive Google "build your own vacuum pump" for a cheap and reliable pump made out of fridge components or go to joewoodworker.com for a pump that cost less than 300.00 complete. A good vacuum set up works great at a fraction of the c...

Tore wrote:I thought of making a new topic on this subject. We're having a hard time finding ou how much 22 oz is in gr/m2. If it's convertible. If somebody can help us that would be great!

If I did my math right 22oz/sq.yd=744gms/m^2

A quick conversion is to multiply by 34 to get gm/m^2

Tony

info on deriving beam stiffness/strength when comprised of different materials at different orientations One of the suppliers of fabrics in the US uses this program to analyze its fabrics. It is very good and allows a whole bunch of different combinations of core and types of materials as well as c...

Please tell me what you think about it! That is really nice, I guess youve linked the 3d drawing to the spreadsheet so it draws automatically as you change the parameters? I was interested in your stress analysis on the press since the results seemed a bit odd to me. If you have a constant pressure...

What do I need to know to choose the pump?? I think almost any fridge compressor will work but here is a link to show how to make a vacuum pump out of a fridge compressor and they talk a bit about the requirements. Mine is just an old piston compressor that I replumbed to get to the intake(vacuum) ...

I think pretty much everyone uses epoxy resins, most of the poly and vinyl ester resins do not work really well with the different materials in a ski. You need to glue the core with epoxy since polyesters will not bond well enough. Polyester resins can not be used over epoxy resins because they will...

does it have different physical properties? Where did you get it? -kelvin The Texalium is used in a lot of commercial skis because it covers up the cores and provides a nice surface, I decided to use it because the triaxial glass that I have access to is 18oz. I noticed that the +/- 45 fabrics were...

kelvin wrote:Nice! I'd like to see pics too.

Here are a couple of pictures,





Tony[/url]

Did I read that correctly, $230 for shipping? That hurts. If that is the case, it's outta my price range. Yea it was out of my price range too and negated any benefit of the "good" price on the base material. Ask them to mail it to you it will cost under 20.00 and you won't pay any Canadi...

3) If I can not use the local Poly, is there any out there? that I could get in non ridiculous amounts, preferably in Canada? Mac Mac Durasurf will sell you material from their overstock inventory a 2.00/ metre. you have to buy 10 metres but that is only 20.00 regular price is 6.00/meter. There is ...

I tried out my new home builts this past weekend and was very pleased with the results. First some details 125-92-115 with 8mm camber, they are a 21metre radius ski. The core is 9mm thick at the center and tapers to 2mm at the tip and tail, they are fairly flexible but not dissimilar to my Dynastar ...

is it acceptable for snowboards and skis up to 185 cm? It is probably overkill, even the smallest unit will be acceptable. The only advantage of the big units is the time it takes to draw the vacuum. With the smallest pump this might take 1 minute which gives you lots of time to smooth out wrinkles...