Search found 175 matches
- Mon Dec 16, 2013 12:49 am
- Forum: Journals: Log Your Ski Building Progress
- Topic: Section8 2013-2014
- Replies: 44
- Views: 24815
If you wanna have a less stiff ski without sacrificing strength you can make the ud bottom laminate lighter than the one above. Makes quite a big difference in stiffness. And I might help you out with the composite calculations to get exactly the same flex as one of your fg boards. If you're interes...
- Mon Dec 16, 2013 12:35 am
- Forum: Journals: Log Your Ski Building Progress
- Topic: FFC winter log
- Replies: 43
- Views: 26150
- Sun Dec 15, 2013 3:22 am
- Forum: Journals: Log Your Ski Building Progress
- Topic: Section8 2013-2014
- Replies: 44
- Views: 24815
- Sat Dec 14, 2013 2:12 am
- Forum: Journals: Log Your Ski Building Progress
- Topic: Section8 2013-2014
- Replies: 44
- Views: 24815
Not sure if i get that right or not, but you planed to use just the biax flax as reinforcement without a uni layer? Because the biax is usually used to control torsional stiffness, and with 350gsm flax it will be already stiff with a single layer (one above, one below the core - obviously)... I woul...
- Sun Nov 24, 2013 1:42 pm
- Forum: Journals: Log Your Ski Building Progress
- Topic: FFC winter log
- Replies: 43
- Views: 26150
So, cores are milled In the making: http://home.rega-sense.ch/arnold.aebischer/nit_swisskiters/reto/Ski/018.jpg Tip spacer: http://home.rega-sense.ch/arnold.aebischer/nit_swisskiters/reto/Ski/019.jpg Hardpoint for the binding: http://home.rega-sense.ch/arnold.aebischer/nit_swisskiters/reto/Ski/020.j...
- Sat Nov 16, 2013 2:02 am
- Forum: Materials and Supplies
- Topic: Flax - Fiberglass replacement
- Replies: 14
- Views: 11765
The main advantage of flax is its ratio stiffness per weight. As stiffness is about the same as glass fiber, but at half the density, its about double as good as glass. So I would use flax where ever a ski is designed for rigidity - so for torsion then. And basalt is as natural as fiber glass. They ...
- Thu Nov 14, 2013 4:25 am
- Forum: Journals: Log Your Ski Building Progress
- Topic: Origin Skis- 'bout time I share
- Replies: 11
- Views: 9384
- Mon Nov 11, 2013 11:23 pm
- Forum: Journals: Log Your Ski Building Progress
- Topic: Bent Green Things 13/14
- Replies: 146
- Views: 70259
1) According composite theory it is better to put the biax layer on the core. Like that you have a smoother transition in the stiffness of each layer. And if your core is too thin then this is another reason to do so, because the fibers at 0° will be further away from each other. 2) Rubber on UHMWPE...
- Mon Nov 11, 2013 5:19 am
- Forum: Journals: Log Your Ski Building Progress
- Topic: FFC winter log
- Replies: 43
- Views: 26150
You can get the cores directly via Bcomp. These cores are test planks which can be ordered without any minimum quantities. They cost around 15€ a piece (piece, not pair). These cores make quite a difference in weight but they are a little tricky to machine... And thanks for the remark with the base....
- Sun Nov 10, 2013 4:17 am
- Forum: Journals: Log Your Ski Building Progress
- Topic: FFC winter log
- Replies: 43
- Views: 26150
- Sun Nov 10, 2013 4:03 am
- Forum: Journals: Log Your Ski Building Progress
- Topic: FFC winter log
- Replies: 43
- Views: 26150
so my thread was already quite far down, time to show some progress. But things go on slowly because my shop is not where I live... But I managed to make all the templates for my fatties: http://home.rega-sense.ch/arnold.aebischer/nit_swisskiters/reto/Ski/013.jpg Cut out one base: http://home.rega-s...
- Fri Nov 08, 2013 6:58 am
- Forum: Journals: Log Your Ski Building Progress
- Topic: Bent Green Things 13/14
- Replies: 146
- Views: 70259
- Thu Nov 07, 2013 1:50 pm
- Forum: Journals: Log Your Ski Building Progress
- Topic: Bent Green Things 13/14
- Replies: 146
- Views: 70259
This is pretty standard in ski industry to have cores made of about 3mm wide strips! I guess it is easier to produce - like that they can use veneers instead of planks, so they can produce much bigger blocks without having troubles of putting one plank next to the other in order to get the with need...
- Wed Oct 23, 2013 12:55 am
- Forum: Journals: Log Your Ski Building Progress
- Topic: FFC winter log
- Replies: 43
- Views: 26150
I think what Twizz wanted to know is what type of topsheet material you're using (i.e. manufacturer and model). And I kinda want to know that too ;) Ah sry, I didn't get that. Honestly I have no clue what kind of top sheet that is. Its just something which was laying around here... For me it feels ...
- Tue Oct 22, 2013 12:02 pm
- Forum: Journals: Log Your Ski Building Progress
- Topic: FFC winter log
- Replies: 43
- Views: 26150
its the layup I planed for the ski, I'm not even sure if I mentioned it before: Topsheet epoxy paint UD Fiberglass Biax flax fiber then the core and flax and fiberglass again. Flax is a natural fiber with more or less the same stiffness as fiberglass at half the density. I probably going to produce ...