Search found 21 matches

by kipi
Mon Mar 21, 2011 3:24 am
Forum: Ski/Snowboard Design and Layup
Topic: Edges twist -_-
Replies: 5
Views: 2720

Edges twist -_-

Hello, Did anyone had a problem with edges getting a twist (like a Fusilli pasta shape) after bending? Im using the skibuilders bender and i succeed to get to almost prefect shape of the edges to match the outline of the base. so after layup the edges has no chance to pop out or something, they are ...
by kipi
Thu Feb 10, 2011 1:30 pm
Forum: Ski/Snowboard Design and Layup
Topic: When topsheets fail.. Help solve the mystery!
Replies: 32
Views: 17495

thanks for the answers

im not using heat O_o

is it good to put a heat blanket only on one side of the board during layup?
(im using vaccum so i cant have blanket on both sides)

kipi
by kipi
Mon Feb 07, 2011 2:28 am
Forum: Ski/Snowboard Design and Layup
Topic: When topsheets fail.. Help solve the mystery!
Replies: 32
Views: 17495

I have some questions about the polyurethane... 1. do i need to abrade the fiberglass/epoxy before coating with the polyurethane? 2. if i do abrade it, the epoxy loses his clearness and it turns dull... does it get clear again after wetted with the polyurethane? 3. if i brush the polyurethane, will ...
by kipi
Thu Feb 03, 2011 3:02 am
Forum: Ski/Snowboard Design and Layup
Topic: When topsheets fail.. Help solve the mystery!
Replies: 32
Views: 17495

ok maybe I will try it

how many layers should i do??
what are the characteristics of this material ? why not just do a layer of epoxy for example?
how is it compared to p-tex TS??

does it get strached? what happens if it gets a strong hit?

some more ideas?!
Kipi
by kipi
Thu Feb 03, 2011 3:02 am
Forum: Ski/Snowboard Design and Layup
Topic: When topsheets fail.. Help solve the mystery!
Replies: 32
Views: 17495

ok maybe I will try it

how many layers should i do??
what are the characteristics of this material ? why not just do a layer of epoxy for example?
how is it compared to p-tex TS??

does it get strached? what happens if it gets a strong hit?

some more ideas?!
Kipi
by kipi
Wed Feb 02, 2011 5:54 pm
Forum: Ski/Snowboard Design and Layup
Topic: When topsheets fail.. Help solve the mystery!
Replies: 32
Views: 17495

Thanks for all the answers

The polyurethane sounds interasting.. I have never used it b4
How do yo apply it as a topsheet?? can i have some information?

thx
by kipi
Sun Jan 30, 2011 1:04 am
Forum: Ski/Snowboard Design and Layup
Topic: When topsheets fail.. Help solve the mystery!
Replies: 32
Views: 17495

I dont know whats wrong with the google doc link, i will try to upload it again. anyway, there is a problem with the epoxy and with the topsheet, thats for sure. it doesnt matter now. I still need to find a solution, cos for now my board has no TS. and there are also 3 more cores waiting to get in t...
by kipi
Tue Jan 25, 2011 5:24 pm
Forum: Ski/Snowboard Design and Layup
Topic: When topsheets fail.. Help solve the mystery!
Replies: 32
Views: 17495

some pictures to illustrate: http://i1179.photobucket.com/albums/x383/kipisheos/Picture515.jpg b4 the layup http://i1179.photobucket.com/albums/x383/kipisheos/Picture516.jpg in the mold http://i1179.photobucket.com/albums/x383/kipisheos/Picture527.jpg board is ready, topsheet got peeled off http://i...
by kipi
Tue Jan 25, 2011 4:18 pm
Forum: Ski/Snowboard Design and Layup
Topic: When topsheets fail.. Help solve the mystery!
Replies: 32
Views: 17495

Ok! I have the test results.. quite confusing i must say. There were 2 factors that had chaged in the new board from the previous boards, the epoxy & topsheet. So thats what i checked. The test: 4 materials- A- old epoxy (used on previous boards, i have some leftovers) B- old topsheet (used on p...
by kipi
Sun Jan 23, 2011 1:56 am
Forum: Ski/Snowboard Design and Layup
Topic: When topsheets fail.. Help solve the mystery!
Replies: 32
Views: 17495

https://docs.google.com/viewer?a=v&pid=gmail&attid=0.1&thid=12db23bea27b30ef&mt=image/tiff&url=https://mail.google.com/mail/?ui%3D2%26ik%3D7fa2b7a402%26view%3Datt%26th%3D12db23bea27b30ef%26attid%3D0.1%26disp%3Dattd%26zw&sig=AHIEtbS4e6q-LySx9hl8EUxwhBkvlryuIA&pli=1 i aske...
by kipi
Sun Jan 23, 2011 1:13 am
Forum: Ski/Snowboard Design and Layup
Topic: When topsheets fail.. Help solve the mystery!
Replies: 32
Views: 17495

to be more accurate..
it did stick a lil, but i almost didnt use any power inorder to peel it off.
and another wierd thing is that the peeled topsheet have small spots of epoxy all over it. so it did stick to the topsheet but it didnt stick both layers together.
by kipi
Sun Jan 23, 2011 1:02 am
Forum: Ski/Snowboard Design and Layup
Topic: When topsheets fail.. Help solve the mystery!
Replies: 32
Views: 17495

I bought the topsheet from skibuilders shop. i already used their topsheet in my previous boards. this new one had a protective tape on one side. (the old version TS didnt) i assumed the treated side isnt the one with the tape right? if so, then it was on the right side. the one with the tape is muc...
by kipi
Sat Jan 22, 2011 6:27 pm
Forum: Ski/Snowboard Design and Layup
Topic: When topsheets fail.. Help solve the mystery!
Replies: 32
Views: 17495

When topsheets fail.. Help solve the mystery!

Hello skibuilders, Today i took out my board from my vaccum press and the topsheet just peeled off. as if the epoxy didnt glue the TS what so ever.. What can be the reason???? The rest of the board seems very good... I made some gluing test today, i will have the results tomorrow. (and how do i uplo...
by kipi
Thu Sep 24, 2009 3:31 am
Forum: Materials and Supplies
Topic: fiberglass and carbon proportions O_O!
Replies: 66
Views: 55304

Thanks a lot for the answers^_^! btw im building snowboards not skis.. my conclusions and questions: 1. carbon at top only is useless bocs it will be under compression and not tesion. in that case the only good thing about it is the looks. 2. uni is best? that sounds odd.. are you sure it will be go...
by kipi
Wed Sep 23, 2009 1:50 am
Forum: Materials and Supplies
Topic: fiberglass and carbon proportions O_O!
Replies: 66
Views: 55304

so you are saying that 744g/m fiberglass = 250~g/m carbon??

what is uni ?? some kind of a weaveO_o?

and how come it wont improve preformance, isnt carbon much more strong/tough/cool/durable/sexy?