Forum Index

 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Divide Rides
Goto page Previous  1, 2, 3, 4 ... 20, 21, 22  Next
 
Post new topic   Reply to topic     Forum Index -> Journals: Log Your Ski Building Progress
View previous topic :: View next topic  
Author Message
ben_mtl



Joined: 31 Mar 2008
Posts: 566
Location: Sherbrooke, Quebec

PostPosted: Fri Nov 02, 2012 3:27 am    Post subject: Reply with quote

Very nice ! can't wait to see it after it's flashed !
Don't you worry about it being stiff with a full carbon layer + basalt quadrax ?
_________________
A bad day skiing is always better than a good one at work...
Back to top
View user's profile Send private message Visit poster's website
skidesmond



Joined: 07 Apr 2009
Posts: 2283
Location: Western Mass, USA

PostPosted: Fri Nov 02, 2012 4:55 am    Post subject: Reply with quote

Great idea w/ the leaves! I think it maybe too late now for me to gather leaves as most have fallen and may be to dry now. Damn! There's always next year.

Lookin' great.
Back to top
View user's profile Send private message Visit poster's website
Dtrain



Joined: 18 May 2011
Posts: 528
Location: Prince Rupert/Terrace B.C.

PostPosted: Fri Nov 02, 2012 6:24 am    Post subject: Reply with quote

Yes ben, I want it stiff. It wont be too stiff. the uni carbon is full length but only one inch width per "ski" above and below core. More of a stringer than a layer.

I also compensated by not making the core thicker. most splitboards have a thicker core than a reg. board ive found.

But........ Im still new to this building game, so I guess we will see when I cut it out tonight. Very Happy
Back to top
View user's profile Send private message
twizzstyle



Joined: 07 Mar 2006
Posts: 2198
Location: Kenmore, Wa USA

PostPosted: Fri Nov 02, 2012 11:35 am    Post subject: Reply with quote

I wonder if you could use one of those little magnetic nail finders to find the inserts?
Back to top
View user's profile Send private message
twizzstyle



Joined: 07 Mar 2006
Posts: 2198
Location: Kenmore, Wa USA

PostPosted: Fri Nov 02, 2012 11:38 am    Post subject: Reply with quote

http://www.amazon.com/Stanley-47-400-Magnetic-Stud-Finder/dp/B0000BYD3K/ref=sr_1_4?ie=UTF8&qid=1351885048&sr=8-4&keywords=Nail+finder
Back to top
View user's profile Send private message
Dtrain



Joined: 18 May 2011
Posts: 528
Location: Prince Rupert/Terrace B.C.

PostPosted: Fri Nov 02, 2012 12:00 pm    Post subject: Reply with quote

Nice idea twizz. I found a great method though. Earth magnets. Cilinder shape.same diameter as the insert. You can pretty much throw it at the board and it sticks directly ontop of an insert.
Back to top
View user's profile Send private message
Dtrain



Joined: 18 May 2011
Posts: 528
Location: Prince Rupert/Terrace B.C.

PostPosted: Sun Nov 04, 2012 9:46 pm    Post subject: Reply with quote

got this one cut out.

[/img]

[img]

NOSE
[/img]

TAIL
[/img][/url]
Back to top
View user's profile Send private message
Smiley



Joined: 05 Feb 2006
Posts: 14
Location: Switzerland

PostPosted: Wed Nov 07, 2012 12:56 am    Post subject: Reply with quote

Lookin awesome DTrain!!!! Very Happy
_________________
Not All Who Wander Are Lost
Back to top
View user's profile Send private message
Dtrain



Joined: 18 May 2011
Posts: 528
Location: Prince Rupert/Terrace B.C.

PostPosted: Mon Nov 12, 2012 9:34 pm    Post subject: Reply with quote

Got another splitboard pressed.

this time went with 19oz triax on top, 19.9 ounce quadaxial basalt on bottom. The full bamboo core with carbonized bamboo sidewalls.

I have stopped my core shift issues. 4 wood blocks glued to the sides of the core. they contain holes in them for inserts, spray glue bases to cassette, super glue the 4 inserts to cassette. No shift, no dowells or inserts in final product. Stoke is high.

I am now officialy done with tip spacer. nothing about it rubs me right. I bought a couple tubs of smooth-on 790 poly-u. I have 2 buddies that have a cnc shop that are starting to give me great pricing as I am A repeat customer.

I will pour channel walls/spacer and have cores cnc profiled from now on. Our Delta planer has worked alright for profiling, but our patience, time, and blades have wore thin.

a couple pics of the rough flashed board. not chopped yet.

[/img]

[img]

can the other channel pouring poly-u snowboard crew (ya you) give me some advice on these pesky bubbles Ive read about, and some facts about using a tourch, etc. to try and remove them?[/img]
Back to top
View user's profile Send private message
chrismp



Joined: 13 Feb 2009
Posts: 1258
Location: Vienna, Austria

PostPosted: Tue Nov 13, 2012 12:37 am    Post subject: Reply with quote

if you have a vacuum pump that reaches 28-29"hg you can easily build a degassing chamber. i used an old pressure cooking pot as a chamber. just bought a thick sheet of lexan as a lid, routered a channel with the same diameter as the rim of the pot into the lid and filled that up with some silicone (the stuff you use for tile joints). added a connector to the sheet and connected the vacuum pump. it reaches full vacuum within a couple of seconds (mind you i have quite an expensive vacuum pump).

with the adiprene lf950a / ethacure 300 combo i use bubbles aren't that big of an issue even if you don't degas. just pass a torch over the sidewalls as long as they're still liquid.

only downer for me with PU is the short working times. sometimes this stuff hardens as you pour the last bits into the through and i'd rather have a little more working time...maybe i'll just mix two separate cups and degas the second one while pouring the first.
Back to top
View user's profile Send private message
vinman



Joined: 09 Nov 2007
Posts: 1301
Location: The tin foil isle

PostPosted: Tue Nov 13, 2012 2:20 am    Post subject: Reply with quote

Where did you get your basalt fiber?
_________________
Fighting gravity on a daily basis
www.Whiteroomcustomskis.com
Back to top
View user's profile Send private message Visit poster's website
Dtrain



Joined: 18 May 2011
Posts: 528
Location: Prince Rupert/Terrace B.C.

PostPosted: Tue Nov 13, 2012 6:51 am    Post subject: Reply with quote

Thanks Chris.

Vinman:I bought from sudaglass because they have no minimum order. Unfortunately there triax is a 28 ounce. The do have bias and uni that could be stacked, but though I have not tryed that method, I'd think it sucks up a lot of resin. Basaltex has the good triax, but they have a 50m minimum of 50 inch wide. About 700 bucks. maybe next year for me. Shipping the roll to Canada is about 250 bucks.
Back to top
View user's profile Send private message
Upper Left Coast



Joined: 14 Oct 2012
Posts: 18

PostPosted: Fri Nov 16, 2012 1:49 pm    Post subject: heart breaking tragedy Reply with quote

i've already got some input from a thread in the ski design/layup forum but here are some pics of our first ski. one of them delaminated right out of the press probably due to the fact that i didn't remove all the spray glue that was used to hold the cores down to the cnc table. oops! really heart breaking since they would have been really sweet otherwise.

2.5mm - 12.6mm-3.0mm bamboo core
22oz triax fiber glass top and bottom with a piece of 9oz uni for binding area.
143-123-127 dimensions 191cm length. 500mm tip rocker, 250mm tail. 4mm camber underfoot.
then this happened...







you're looking at a gaping hole between the core and the fiber glass on the base side. one ski bonded well, the other did not. can i get some reassuring statements about perseverance please? also, maybe 60psi is a little too high?
Back to top
View user's profile Send private message
twizzstyle



Joined: 07 Mar 2006
Posts: 2198
Location: Kenmore, Wa USA

PostPosted: Fri Nov 16, 2012 2:26 pm    Post subject: Reply with quote

60psi is not too high, and certainly won't cause delam issues. 50-80psi seems to be the most common range for folks with pneumatic presses, although some press even higher than that (I'd worry about squeezing out too much epoxy that high).

That delam is a major bummer, I was envisioning a small crack or something, that's huge! Sad

Perseverance is the name of the game with this hobby. This might be your first major heart brake building skis/snowboards, but it won't be your last, and don't fool yourself into thinking you'll learn from every mistake you make! Smile On every pair I've built there is always something that I forget, or get careless/rushed about. The perseverance comes when you're standing at the bottom of a great run on your own handmade gear with a huge grin Very Happy
Back to top
View user's profile Send private message
vinman



Joined: 09 Nov 2007
Posts: 1301
Location: The tin foil isle

PostPosted: Fri Nov 16, 2012 3:24 pm    Post subject: Reply with quote

How about filling it with a paste epoxy, repressing and giving them a go anyway? When I screw up sidewall I use JB WELD or PC 7 paste epoxy.

I guess it depends on how far I that delam propagates and it you think it would pretty much be a total failure with any sort of force on it.
_________________
Fighting gravity on a daily basis
www.Whiteroomcustomskis.com
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic     Forum Index -> Journals: Log Your Ski Building Progress All times are GMT - 8 Hours
Goto page Previous  1, 2, 3, 4 ... 20, 21, 22  Next
Page 3 of 22

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group