Search found 57 matches

by pavelbozak
Mon Nov 17, 2014 2:08 am
Forum: Journals: Log Your Ski Building Progress
Topic: Crisp Customs 2014
Replies: 45
Views: 33482

thank you so much for your tips and photos, falls! :) To use adhesive spray to attache bases looks fine. But do you spray the whole bases or only for example 3 places to attache it? I looked up the spray and it is pretty expensive in here. If spraying it only on few spots, it will last for several l...
by pavelbozak
Sun Nov 16, 2014 8:23 am
Forum: Journals: Log Your Ski Building Progress
Topic: Crisp Customs 2014
Replies: 45
Views: 33482

Hi! Nice job :) I have just seen the new pairs above and the video. I like the minimalistic tools! it is very familiar to me :D ! And the best about it is that the result looks absolutely perfect! Do u use core exactly cut to dimensions of basese with edges? It could be fine for core centering from ...
by pavelbozak
Fri Oct 24, 2014 12:32 am
Forum: Journals: Log Your Ski Building Progress
Topic: Detailed documentation of my next build
Replies: 78
Views: 70793

And yes, I am crazy :) Had to dry test them: Nice, I always have to dry test my new pairs too..... not crazy alone.....:D I have seen the weather forecast for austria... so much snowfall, My legs are impatient but I should wait for the second or third snowfall. Cause of my impatient there are alway...
by pavelbozak
Wed Oct 22, 2014 8:25 am
Forum: Journals: Log Your Ski Building Progress
Topic: Detailed documentation of my next build
Replies: 78
Views: 70793

My tips rise slowlier up under bigger radius which is connected with a wealthier rocker and there is almost no tension... about the carbon.... I know it must be stiff enaugh but I should maybe use term "fragile" without glass... friend of mine from lamination industry adviced me not to use...
by pavelbozak
Wed Oct 22, 2014 1:58 am
Forum: Journals: Log Your Ski Building Progress
Topic: Detailed documentation of my next build
Replies: 78
Views: 70793

Hi pmq! nice documentation and nice features. It is possible to see the passion you get from skibuilding which is i think the best about it. the tips. I don t think it is because of vertical tension... Amount of vertical tension must be minimal in contrary with some stress for example while flexing ...
by pavelbozak
Wed Sep 24, 2014 3:15 am
Forum: Ski/Snowboard Design and Layup
Topic: The pouring urethane sidewall thread
Replies: 288
Views: 204121

pmg PostPosted: Mon Sep 22, 2014 3:44 pm Post subject: Ok, a video of my Task 12 test piece, directly out of the freezer after being in there for 16 hours. The video quality sucks, but you can see enough - especially me making a little hole in the kitchen working space :) http://www.spame.de/skibau...
by pavelbozak
Sat Sep 20, 2014 1:38 pm
Forum: Ski/Snowboard Design and Layup
Topic: Wood sidewall preference
Replies: 28
Views: 23317

Pmq, i do it exactly like you. But for example the difference between ash and black locust is huge. I have no burned places when i am routering ash, even if i slow down... But routering real hardwood needs to be very exact and quite quick... Now i am able to do edge for example with "only"...
by pavelbozak
Fri Sep 19, 2014 2:23 pm
Forum: Ski/Snowboard Design and Layup
Topic: Wood sidewall preference
Replies: 28
Views: 23317

I ve tested bangkirai, it will be very similiar to ipe, not oily and a bit cheaper. This summer i am putting black locust. Cutting out theese hard wood destroys plates of my jigsaw, one plate for one and half pair of skis aproximately. But now i ve tried some very raugh plate designed for epoxy comp...
by pavelbozak
Tue Sep 16, 2014 3:10 am
Forum: Ski/Snowboard Design and Layup
Topic: binding reinforcement
Replies: 16
Views: 12764

well, the skis are almost ready, just waiting for polyurethane coat and base grindindg. finally after doing a bit stiffer core than I expected, I realized to give the longtitudal carbon stringers out... Not sure if it was good idea. Yes the ski is quite stiff even without it but I wanted them a bit ...
by pavelbozak
Fri Sep 12, 2014 1:14 am
Forum: Journals: Log Your Ski Building Progress
Topic: Detailed documentation of my next build
Replies: 78
Views: 70793

I also agree with consistent wood stripes above the edges.... Additionally ,my opinion is that there is no need for plastic sidewalls if you have nice stripes of wood to place them above your edges. I have not tried ash for sidewalls yet but my girlfriend´s dad has a pair of really oldschool ash ski...
by pavelbozak
Sun Aug 31, 2014 10:51 pm
Forum: Journals: Log Your Ski Building Progress
Topic: Summer skibuilding 2014
Replies: 22
Views: 19549

oh vinman, I also know the sound !!! :)))
by pavelbozak
Sun Aug 31, 2014 10:48 pm
Forum: Journals: Log Your Ski Building Progress
Topic: Summer skibuilding 2014
Replies: 22
Views: 19549

from characteristics above, I think, you can see that BL is harder and more elastic.... The ratio of Elastic modulus: crushing strength is in those characteristics better for BL.... twists as hell... well if you look at the BL how it grows.... the tree is not straight (like poplar, ash for example o...
by pavelbozak
Sun Aug 31, 2014 9:59 pm
Forum: Ski/Snowboard Design and Layup
Topic: binding reinforcement
Replies: 16
Views: 12764

jono: thanks, that was my idea. To put little reverse camber to improve handling even in smaller speed... How much have you overrockered your rocker shape bottom mold to get nice small rocker underfoot? I am not sure how much it will decrease. But i suppose it will be very similiar to camber deceeas...
by pavelbozak
Sun Aug 31, 2014 4:13 am
Forum: Ski/Snowboard Design and Layup
Topic: binding reinforcement
Replies: 16
Views: 12764

Well, just almost finished my cores... It is made out of siberian cedar, black locust sidewalls and "little ash plywood reinforcement" under the binding I am pretty happy with the core flex - so stiff and light in the same time... (2.6 mm - 12.3 mm - 3.2 mm). There is no need for carbon st...
by pavelbozak
Sat Aug 30, 2014 11:28 pm
Forum: Journals: Log Your Ski Building Progress
Topic: Summer skibuilding 2014
Replies: 22
Views: 19549

Hi, i have already tried sidewalls from bangkirai wood. Durability is amazing and also the look. Someone says that wooden sidewalls increase the amount of vibration in skis but i dont think so... this summer i decided to go with black locust sidewalls. BL is very hard but in the same time flexible w...