Search found 18 matches

by Upper Left Coast
Mon Apr 06, 2015 10:05 pm
Forum: Ski/Snowboard Design and Layup
Topic: Veneer Thickness
Replies: 14
Views: 12326

medipore tape

Be careful using that medipore tape for keeping inlay pieces together, we have noticed major bonding issues. We thought it was porous enough to be negligible but it creates a bit of an impenetrable layer. Use little bits of it instead of taping across letters or whatever. Otherwise agree with how ve...
by Upper Left Coast
Wed Dec 18, 2013 10:51 am
Forum: Ski/Snowboard Design and Layup
Topic: Spooning
Replies: 16
Views: 11960

We got a whole snowboard to have a 3d convex base by putting triax basalt on top and biax (0-90) carbon on bottom (or was it the other way around?) I've thought maybe we could spoon out a ski tip by tapering out the triax used for the whole ski, so that it comes to a point just above the bindings, a...
by Upper Left Coast
Fri Nov 22, 2013 12:31 pm
Forum: Journals: Log Your Ski Building Progress
Topic: Divide Rides
Replies: 332
Views: 207160

195cms
by Upper Left Coast
Mon Mar 11, 2013 12:37 am
Forum: Ski/Snowboard Design and Layup
Topic: The pouring urethane sidewall thread
Replies: 288
Views: 193194

Lesson learned: Don't try tinting poly with acrylic paint, stick to pigments suited for the purpose. "only a couple drops" is enough to turn your polyurethane into spray foam. oops.
by Upper Left Coast
Tue Mar 05, 2013 2:07 pm
Forum: Ski/Snowboard Design and Layup
Topic: WEIGHT REDUCTION
Replies: 8
Views: 7203

powder fattys

sounds like a reasonable weight for such a big ski, i got excited on my first couple pairs with full length bamboo and no sidewalls because they were quite light. now we use a full wrap liquid polyurethane rubber sidewall and it adds a few ounces but i think it's worth it for durability and dampenin...
by Upper Left Coast
Wed Feb 27, 2013 10:27 am
Forum: Journals: Log Your Ski Building Progress
Topic: Divide Rides
Replies: 332
Views: 207160

We got the basalt from basaltex. The minimum is 50m of 50 inch. Cost us 549euros for the roll and 333euros for shipping from belgium. Expensive but worth it. I've used quadax in snowboards. Stuff ruled so we pulled the plug and ordered the triaxial. skis rode amazing. They even carve decent on the g...
by Upper Left Coast
Mon Dec 03, 2012 5:38 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Bending base with edges
Replies: 61
Views: 50499

good thread, excellent ghetto style roller pics. we do 3/4 edge wrap except for split boards, the inside edge goes all the way. i think taking the board out of the press while still hot made the edge relax from the base since the epoxy was still a little pliable so we'll be leaving it in the press u...
by Upper Left Coast
Mon Nov 19, 2012 12:51 pm
Forum: Ski/Snowboard Design and Layup
Topic: Pure carbon skis?
Replies: 48
Views: 31814

yeah so i thought i found some triaxial carbon fiber on ebay and it says its 3k triax and doesnt give a weight. turns out its only 3.8 oz fabric or something. i guess the lower the modulus, the lighter the fabric will be in most cases so the 50k stuff from hp is probably sweet.
by Upper Left Coast
Mon Nov 19, 2012 12:40 pm
Forum: Ski/Snowboard Design and Layup
Topic: Bamboo tip fill?
Replies: 22
Views: 12389

i would prefer to bring the bamboo right to my tips because i have a pretty mellow tip curve (with enough rocker i get away with it) so i dont have to worry about what will bend and retain shape as much. however, my bamboo blanks are 183 cm (6ft) and my ski is 191cm so i used plastic tip spacer, whi...
by Upper Left Coast
Sat Nov 17, 2012 3:34 pm
Forum: Ski/Snowboard Design and Layup
Topic: A question about sno-cad
Replies: 10
Views: 7957

yeah the skis i just pressed are pretty close to a 5 dimension ski which i created by lengthening the tip and tail like you mentioned. seven point spline helps add some versatility as well, i think thats in the rail shaper option. i didn't know about the convex box, i'll try it out. thanks!
by Upper Left Coast
Sat Nov 17, 2012 12:01 pm
Forum: Journals: Log Your Ski Building Progress
Topic: Divide Rides
Replies: 332
Views: 207160

How about filling it with a paste epoxy, repressing and giving them a go anyway? When I screw up sidewall I use JB WELD or PC 7 paste epoxy. I guess it depends on how far I that delam propagates and it you think it would pretty much be a total failure with any sort of force on it. word vinman, i th...
by Upper Left Coast
Sat Nov 17, 2012 11:23 am
Forum: Ski/Snowboard Design and Layup
Topic: A question about sno-cad
Replies: 10
Views: 7957

word, sorry for being patronizing, i forgot it moves with the ratio of tip to tail widths. but yeah it definitely has limitations, i dont think it will do reverse sidecut shapes.
by Upper Left Coast
Fri Nov 16, 2012 1:49 pm
Forum: Journals: Log Your Ski Building Progress
Topic: Divide Rides
Replies: 332
Views: 207160

heart breaking tragedy

i've already got some input from a thread in the ski design/layup forum but here are some pics of our first ski. one of them delaminated right out of the press probably due to the fact that i didn't remove all the spray glue that was used to hold the cores down to the cnc table. oops! really heart b...
by Upper Left Coast
Fri Nov 16, 2012 1:13 pm
Forum: Ski/Snowboard Design and Layup
Topic: A question about sno-cad
Replies: 10
Views: 7957

hm, the waist width measurement is the narrowest point. moving your 'sidecut radius/bias' will move your narrowest point front or back of the middle of your running length. i.e. +10mm of bias would move your narrowest point of sidecut to 10mm back from the running length middle. i usually have to wo...
by Upper Left Coast
Fri Nov 16, 2012 12:59 pm
Forum: Ski/Snowboard Design and Layup
Topic: Fiber glass-woodcore delam.
Replies: 29
Views: 12436

yeah i feel silly for not being prudent enough to remove the spray adhesive since i was so meticulous on everything else, oh well, at least i know how to adjust my profile to optimize the flex pattern for my next pair. i was just helping my friends build a vacuum table for their cnc gantry that will...