Search found 447 matches

by mammuth
Fri Jan 16, 2015 2:23 am
Forum: Ski/Snowboard Design and Layup
Topic: core profile simulation
Replies: 7
Views: 6475

core profile simulation

Is there an easy program to simulate bending of profiles (core profile)? Would like to experiment a little bit with different profiles /trapez/concave/convex) without cutting up too much material (other problem is my limited access to the profiler i use). I know theres stuff like mathlab and so on ....
by mammuth
Mon Jan 12, 2015 3:04 pm
Forum: Materials and Supplies
Topic: Poor customer service Sawgrass
Replies: 9
Views: 7216

Maybe J-Teck (J-Next ink) is more friendly ;)
by mammuth
Sun Jan 11, 2015 10:43 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Quality heat blankets found/cheap!!!!
Replies: 45
Views: 51935

2 channel controller (w. 2 sensors & relays) is a good idea ... if you have different heat sink top/bottom it ensures a nice balanced heatup (gray theory, only from my experience in other applications)
by mammuth
Thu Jan 08, 2015 3:47 am
Forum: Ski/Snowboard Design and Layup
Topic: Edge / ABS
Replies: 12
Views: 9607

aiming for 10-15degrees
by mammuth
Thu Jan 08, 2015 2:12 am
Forum: Ski/Snowboard Design and Layup
Topic: Edge / ABS
Replies: 12
Views: 9607

So generally speaking for a nice carving ski with good grip on ice a smaller abs is better (lets ignore the ski flex now, just edge related) but for a more forgiving / easier to repair edge a wider abs is a good idea (powder ski). The ABS breaks on high impact, but its easier to replace then a smash...
by mammuth
Wed Jan 07, 2015 3:09 am
Forum: Journals: Log Your Ski Building Progress
Topic: Skibuilding in Copenhagen
Replies: 10
Views: 7937

Really nice vid :)

Btw. use nitril gloves, not vinyl (or latex) for epoxy ... these are useless regarding the chemicals (except for keeping ur hands visually clean)
by mammuth
Tue Jan 06, 2015 11:31 am
Forum: Ski/Snowboard Design and Layup
Topic: Edge / ABS
Replies: 12
Views: 9607

@ben: I will rabbet, so this will be no factor for me. Just thinking if there will be a difference in strength / durability ... im known for skiing on stones ;)

This was the 4mm sidewall i mentioned above:

Image
by mammuth
Tue Jan 06, 2015 11:28 am
Forum: Ski/Snowboard Design and Layup
Topic: Edge / ABS
Replies: 12
Views: 9607

I did cut up the destroyed ski right now (a production model), the sidewall was only 4mm wide so the edge material was halfway above the wood core (which was badly damaged too). So there are 3 ways to do the sidewalls / edges ... Just a matter of taste or do you see any advantages / disadvantages? h...
by mammuth
Tue Jan 06, 2015 4:22 am
Forum: Ski/Snowboard Design and Layup
Topic: Edge / ABS
Replies: 12
Views: 9607

Image

Ahhhh :)
by mammuth
Tue Jan 06, 2015 4:22 am
Forum: Ski/Snowboard Design and Layup
Topic: Edge / ABS
Replies: 12
Views: 9607

Hmm, posting the image doesnt work.... Still not allowed
by mammuth
Tue Jan 06, 2015 4:19 am
Forum: Ski/Snowboard Design and Layup
Topic: Edge / ABS
Replies: 12
Views: 9607

Edge / ABS

Thinking about the width of the sidewall. Many people here seem to make it 8-10mm wide. On some skis where i destroyed the edge i could see that the ABS was the same width like the edge (see upper drawing). Sometimes the core gets a hit too... Im not sure if its preferable to make the ABS a little b...
by mammuth
Sun Dec 28, 2014 10:05 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: DIY Silicone Heat Blanket
Replies: 332
Views: 203540

@chrismp: Which wattage did you order? still thinking if its usefull to use a 4kw blanket for sublimation AND pressing. With a good controller and enough heatsink it should be possible. One the other hand ... with these prices... But maybe we should continue in a new thread ;) P.s. first post and ha...