Search found 29 matches

by ruudsjoukes
Mon Feb 21, 2011 9:06 am
Forum: Ski/Snowboard Design and Layup
Topic: my press
Replies: 23
Views: 15768

Looking at the design I would say; make the gap between your top mold and your bottom mold at the tips smaller. This will reduce the area which has to be filled with air along comes pressure.

Removing the elastic cords when pressing or reducing them to 1-2 may also help a bit..

My thoughts..
by ruudsjoukes
Mon Nov 15, 2010 8:08 am
Forum: Ski/Snowboard Design and Layup
Topic: 2.5mm edges
Replies: 10
Views: 6508

Just standard edge, the 2,5 by 2,5mm
by ruudsjoukes
Wed Nov 10, 2010 10:41 pm
Forum: Ski/Snowboard Design and Layup
Topic: core design
Replies: 41
Views: 18958

Just a little adding, can't reply on the core profile question. A flat section underfoot is important if you're using bindings that request that. The smaller your arc will be, the more your centers of the 2 bindings (if you're using nose and rears) will be outlined and therefore less stable and more...
by ruudsjoukes
Wed Nov 10, 2010 4:46 pm
Forum: Ski/Snowboard Design and Layup
Topic: 2.5mm edges
Replies: 10
Views: 6508

Contact Mark Zajac, he's doing sales at CDW edges. mark@cdw-db.com The edges available are in the last post of this thread, click and download the file: http://www.skibuilders.com/phpBB2/viewtopic.php?t=2586&start=30 I sorted out the info and asked him for a total package price included the ship...
by ruudsjoukes
Wed Nov 10, 2010 11:18 am
Forum: Ski/Snowboard Design and Layup
Topic: 2.5mm edges
Replies: 10
Views: 6508

CDW has them.
by ruudsjoukes
Wed Oct 20, 2010 1:29 pm
Forum: Ski/Snowboard Design and Layup
Topic: Metal edges for freestyle ski: What kind of steel?
Replies: 39
Views: 21428

Edge Datasheet from CDW https://docs.google.com/fileview?id=0BzurHbe73BbFOWY0NWU2NGUtNGUxZi00MjViLTgxODMtYzcwYWM1ZjMzNzkz&hl=en&authkey=COu-19EC The guys were only able to make different edges starting at 2500lbs. Research still going, going to figure it out in the end. Heard nothing back fr...
by ruudsjoukes
Wed Oct 20, 2010 11:38 am
Forum: Ski/Snowboard Design and Layup
Topic: Need help
Replies: 8
Views: 3812

Based on epoxy specs it should be possible. There is one big BUT... .. you need to dry the leaves before you put them in between. Put them between sheets of paper, press it down by a couple of books to let all the juice of the leaves get out. Otherwise your epoxy will never stick. That's as far as k...
by ruudsjoukes
Wed Oct 20, 2010 10:00 am
Forum: Ski/Snowboard Design and Layup
Topic: my press
Replies: 23
Views: 15768

To share with everyone the data: When putting 50psi on a HEA 160 steel 37-2 you will get a deflection on a length of 2 meters of 1,245mm maximum. This is on the 'high and safe' side. If you put the beams that hold the 3 next to each other, about 300mm to the inside instead of at the end of the beams...
by ruudsjoukes
Tue Oct 19, 2010 6:48 am
Forum: Ski/Snowboard Design and Layup
Topic: my press
Replies: 23
Views: 15768

I could do the calculation for you if you want to.

Will take me after work so will be tonight.

guess this works at least. What materials are the beams made off?
by ruudsjoukes
Tue Oct 19, 2010 6:48 am
Forum: Ski/Snowboard Design and Layup
Topic: my press
Replies: 23
Views: 15768

I could do the calculation for you if you want to.

Will take me after work so will be tonight.

guess this works at least. What materials are the beams made off?
by ruudsjoukes
Mon Oct 18, 2010 1:35 pm
Forum: Ski/Snowboard Design and Layup
Topic: my press
Replies: 23
Views: 15768

The gab will be a problem since you won't be able to transfer energy in that space. As well you don't want to put the Lowest I beam on it's side, it will deflect the upper I beam in the middle. You can just leave that one out. Like you did with the upper one. I'd rather mount 3 I beams next to each ...
by ruudsjoukes
Thu Oct 07, 2010 7:11 am
Forum: Ski/Snowboard Design and Layup
Topic: Metal edges for freestyle ski: What kind of steel?
Replies: 39
Views: 21428

@falls: thank you. The machine I used to use back in the Netherlands were based on 'time' spend. The time you need to make a stamping pattern with a CNC machine with the length skibuilders would be able to sell them, would be as profitable as the 'regular' edges I think. Have to look into that but I...
by ruudsjoukes
Wed Oct 06, 2010 9:06 pm
Forum: Ski/Snowboard Design and Layup
Topic: Metal edges for freestyle ski: What kind of steel?
Replies: 39
Views: 21428

Info has been forwarded, now that's just waiting. Didn't anyone just make 20 diff types of edges and hit them with a hammer to see whatever cracked first? I know there are a lot of people building skiis that have their own cnc machine, you can easily make edge patterns with it. Basically what I get ...
by ruudsjoukes
Tue Oct 05, 2010 10:12 pm
Forum: Ski/Snowboard Design and Layup
Topic: Metal edges for freestyle ski: What kind of steel?
Replies: 39
Views: 21428

So basically what you say is there is a need of thinner material of polyurethane or of a different material? I can do research on the bonding materials but need to get it down a little specific. If you are willing to supply me with min/max thicknesses and width then I'll get a man doing the material...
by ruudsjoukes
Tue Oct 05, 2010 10:01 pm
Forum: Ski/Snowboard Design and Layup
Topic: Metal edges for freestyle ski: What kind of steel?
Replies: 39
Views: 21428

Sorry about my spelling, yes it is. I'm dutch. Let me come back to you on the slimewall and polyurathane, it's being quoted and it will be cheap, probably even cheaper than $2/meter. I work at a company with good contacts within the business so we'll find more on that. Just give me a chance on it. I...