Search found 1323 matches

by chrismp
Fri Dec 04, 2009 9:15 am
Forum: Materials and Supplies
Topic: Epoxy
Replies: 18
Views: 5242

ok, that was just guesswork...i got the numbers of the single board kit (1kg) sold at snowboardmaterials. we havent pressed any boards yet, so i'll update those figures by the end of next week. but 330g sounds good...that'd cut the costs in half! (we'll be just using one layer of 21oz glass plus the...
by chrismp
Thu Dec 03, 2009 4:34 am
Forum: Materials and Supplies
Topic: Epoxy
Replies: 18
Views: 5242

assuming we use about 750grams of epoxy for one snowboard, we get 20 boards out of a 15kg package, which costs us about 260 EUR incl. shipping (200,- without shipping...mind that we bought quite a bit of fibreglass at the same time, so i guess shipping for just the epoxy would be cheaper). so the ep...
by chrismp
Tue Dec 01, 2009 3:25 pm
Forum: Materials and Supplies
Topic: Epoxy
Replies: 18
Views: 5242

same thing with the sicomin...but a single hotplate and some water in our shop take care of it (also eliminates all the bubbles!).
by chrismp
Tue Dec 01, 2009 1:23 am
Forum: Materials and Supplies
Topic: Epoxy
Replies: 18
Views: 5242

we're using Sicomin SR8500 resin with SZ8525 hardener. heated cures at 180F in about 20min.
by chrismp
Tue Dec 01, 2009 1:21 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: heating the press????
Replies: 12
Views: 5257

take a look at my last post in our journal: http://www.skibuilders.com/phpBB2/viewtopic.php?t=2044

i'll do an in depth description as soon as i find the time to do so...one thing i can tell you already is: they work! :) tested them on a ski and they heated the press to 180F in no time.
by chrismp
Tue Dec 01, 2009 1:16 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: My plan for cheap effective heat
Replies: 4
Views: 1701

i don't think the pressure would be a problem, but still the wattage is far too little.
we're using a pretty similar approach, but the heating elements we use are made for industrial applications, so they have enough power.
by chrismp
Sun Nov 29, 2009 1:56 pm
Forum: Journals: Log Your Ski Building Progress
Topic: Shopvac's Skis
Replies: 95
Views: 64560

that printer should be able to print a ski lenght at once no problem!
by chrismp
Sat Nov 21, 2009 11:30 am
Forum: Journals: Log Your Ski Building Progress
Topic: Shopvac's Skis
Replies: 95
Views: 64560

like he said he had it plotted. that means it was either printed by a large laser or inkjet printer. most copy shops have one of these to print large photos and most of them also offer an option to print with uv-resistant inks if you want to be on the safe side. still, using your printer at work sho...
by chrismp
Thu Nov 19, 2009 11:42 am
Forum: Journals: Log Your Ski Building Progress
Topic: Shopvac's Skis
Replies: 95
Views: 64560

did the paper turn a lot darker under the epoxy? im thinking about doing the same.
by chrismp
Tue Nov 17, 2009 2:39 am
Forum: Materials and Supplies
Topic: triaxial fibreglass fibre biases question
Replies: 3
Views: 1602

yep, the 0/+45/-45 is the stuff you want to use.
by chrismp
Wed Nov 11, 2009 11:16 am
Forum: Ski/Snowboard Design and Layup
Topic: Environmentally Friendly Snowboards and Skis
Replies: 40
Views: 15139

any plans on getting a distributor for europe?
by chrismp
Wed Nov 11, 2009 11:10 am
Forum: Ski/Snowboard Design and Layup
Topic: securing base material to the mold in a heated press?
Replies: 14
Views: 4324

thank you twizzstyle! will try the hotglue.

edit: just a thought, wouldnt it be good to put glue all around the edges? it could prevent epoxy from getting on the base.
by chrismp
Wed Nov 11, 2009 1:36 am
Forum: Ski/Snowboard Design and Layup
Topic: securing base material to the mold in a heated press?
Replies: 14
Views: 4324

thanks guys!
@hugo: the 100°C was just a figure...thats what we can go max. will be pressing between 70-80°C.
doesn't the tape leave imprints on the base?
by chrismp
Tue Nov 10, 2009 2:26 pm
Forum: Ski/Snowboard Design and Layup
Topic: securing base material to the mold in a heated press?
Replies: 14
Views: 4324

securing base material to the mold in a heated press?

sry if this question has already been asked, but i couldn't find an answer via the search function.

how do i prevent the base material from shifting in the aluminum casette in a heated press?
i guess hotglue or double sided tape wouldn't work too well at 100°C.