Search found 103 matches

by tufty
Sat Apr 17, 2010 12:17 am
Forum: Yard Sale (non commercial)
Topic: CNC Template Service
Replies: 25
Views: 14590

i got my last one cnc'd for under 200 bucks, i'd rather have that option available again ;) Even if i got one piece as a cnc'd template, I'd still probably spend half that money on the MDF itself, then hoping and praying that I line each piece up EXACT and to drill the holes exact? If this were sti...
by tufty
Fri Apr 16, 2010 12:34 pm
Forum: Yard Sale (non commercial)
Topic: CNC Template Service
Replies: 25
Views: 14590

My camera's on the fritz, so I can't post photos, but my camber mould was routered direct with no need for a template , as it consists solely of arcs - one for the mould itself, a pair for the tip block, and another pair for the tail block. The mould itself is cut from 18mm MDF (the thickest I can r...
by tufty
Mon Apr 12, 2010 3:30 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Serif Draw Plus 8
Replies: 11
Views: 4979

Well, I'm a mac-head, but I come from a unix background. There's binaries on inkscape.org for mac and windows, and most linuxes have it in their repositories. It's mainly intended for artistic stuff, not as a CAD tool, but it doubles pretty well. If you want full open source CAD, qcad community edit...
by tufty
Sun Apr 11, 2010 10:18 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Serif Draw Plus 8
Replies: 11
Views: 4979

Personally, I use Inkscape for all my vector stuff. It's free, and it imports / exports all major vector formats.
by tufty
Thu Apr 08, 2010 11:54 am
Forum: Ski/Snowboard Design and Layup
Topic: precambered core
Replies: 12
Views: 8971

But I can see it becoming a hassle for any company, large or small, where time is money, and then have to store the boards in a form somewhere to dry until they reach the proper moisture content. Once you've let what you've steamed cool down, it goes back to being rigid (if a little moist). You'd p...
by tufty
Thu Apr 08, 2010 10:39 am
Forum: Ski/Snowboard Design and Layup
Topic: precambered core
Replies: 12
Views: 8971

What would be the difference between steam bending and heat pressing? Steam bending would just stretch the wood fibers before the heat press, as opposed to during the heated-press operation. Simply heating and bending a piece of wood won't create a permanent bend unless the wood is already very hum...
by tufty
Tue Mar 30, 2010 11:36 am
Forum: Materials and Supplies
Topic: glass layers don t bond
Replies: 4
Views: 2524

According to the datasheet, Sicomin 8200 with 8203 requires a minimum post-cook at 60c for 16 hours, with the recommended cycle being 12h at 20c, then 6h at 40c, 6h at 60c and finally 8h at 80c, changing temperature at 10c/hr between stages. If you're pulling it straight out of the vacuum bag withou...
by tufty
Sat Mar 27, 2010 12:49 am
Forum: Aprés Ski Building
Topic: What do you possibly think is going on here
Replies: 14
Views: 10585

tutfy - Thanks for the added info. The Klothoid design sounds like a blended sidecut cut to me. And there's nothing wrong with that. Borrowing technology from other industries, nothing wrong with that either. But can it do what it claims? The skier/boarder makes the ski/board turn, not the other wa...
by tufty
Thu Mar 25, 2010 11:30 pm
Forum: Aprés Ski Building
Topic: What do you possibly think is going on here
Replies: 14
Views: 10585

More info on Klothoid (I guess it is a real word, I'll have to add it to spell check :) ) http://homepage.mac.com/cbakken/cga/curriculum/klothoid.html It's a pismelling, the term generally used is "Clothoid" or "Cornu Spiral". In engineering terms, it can be very useful (loops i...
by tufty
Wed Mar 17, 2010 12:17 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Please critique my profiler design
Replies: 17
Views: 9377

I've been playing with a method for building the camber into horizontally laminated cores, it involves steaming and laminating the core onto the press blank, attaching accurately cut profile guides to the sides of the blank, then using the tip of a 30€ belt sander fitted with guide bars to profile. ...
by tufty
Tue Mar 16, 2010 12:17 am
Forum: Ski/Snowboard Design and Layup
Topic: why route the sidewalls?
Replies: 16
Views: 11622

The main reason is for edge sharpening and bevelling. When you do your edges, you add a base and side bevel based on usage (I do my slalom board at .5° base, 3° edge, which is, to be honest, "quite extreme") - if you're adding any side bevel and you haven't pulled your sidewalls back, you'...
by tufty
Sat Mar 13, 2010 9:27 am
Forum: Materials and Supplies
Topic: Materials in the Mont Blanc area
Replies: 3
Views: 2068

ben_mtl wrote:Salut Simon,

Va faire un tour sur ce site...
Merci Ben. Super, ce site, en effet, et pas mal de liens interessants.
by tufty
Fri Mar 12, 2010 10:34 pm
Forum: Materials and Supplies
Topic: Materials in the Mont Blanc area
Replies: 3
Views: 2068

Materials in the Mont Blanc area

Hi all Been lurking for a while, finally made the plunge to register. I'm going to make a skwal and a GS/SG snowboard. I've decided to go for full bamboo construction, horizontally laminated for various reasons, and maybe (but not certain yet) hemp layup, but I would be grateful if anyone in the are...