horizontal "skateboard" lamination ski

a.badner · Post by **a.badner** » Sat Jan 22, 2011 12:52 pm

trying this.

but do they taper the veneers?

skidesmond · Post by **skidesmond** » Sat Jan 22, 2011 4:24 pm

It has to be tapered at some point along the way. In the graphic it looks like the veneer is tapered before the layup.

twizzstyle · Post by **twizzstyle** » Sun Jan 23, 2011 6:10 am

I bought a bunch of veneer a year ago to do this, but then I found bamboo and got distracted

My whole idea was I could pre-taper the core with smaller and smaller layers of veneer before running it through the planer just for less waste (seems like half the core goes away into sawdust on the planer, huge waste in materials).

skidesmond · Post by **skidesmond** » Sun Jan 23, 2011 6:39 am

Twizz, had similar thoughts. Ideally a wide belt sanding machine would be perfect for something like that. Pass a horizontal core layup on a planer crib through a sanding machine. Some many ideas.... so little $$$

a.badner · Post by **a.badner** » Sun Jan 23, 2011 10:23 am

so i did a little research about this. ( my friend has the afterbangs.)

-theres only five veneers, about 2mm thick

-only the top veneer is tapered. ( they lie in the video )

-there is like a mm thick black vds in the tips.

- there is epoxy inbetween the veneers ( visible epoxy, but very thin ) which means they lay up the core before pressing.

I decided to make some veneers for a skateboard-o-ski.

it really does barely use any wood.
to make enough veneers for a core, it only took on2 1/2 inch plank of wood. (poplar specifically, only wood i had a my house at the time)
cut the veneers with a bandsaw, they were up to 0.1mm accurate.

i tapered the top veneer with a belt sander. and i hope to press a ski with this lamination after final exams this week.

AND

can any one help me with the theory with magnetism for physics, i was a way on a ski trip and dont really understand the concept.

windego · Post by **windego** » Sun Jan 23, 2011 2:24 pm

I did a couple boards 4 layer maple skateboard veneer like this. Little sanding to smooth out the transition. Rode them now 10 times and all good.
http://windego.files.wordpress.com/2010 ... =614&h=460

More pics on http://windego.ca

Cheers
Stan

jiri23 · Post by **jiri23** » Mon Jan 24, 2011 2:09 am

I think the Line afterbang use 7 layers of vaneer. Two full lenght right over the base then one crossed, lengthwise, crossed, lengthwise and again one full length as a top sheet.

I also want to try to build a ski like that but it takes me much too long. At least I have the bases cut out now.

How are you going to glue the vaneers together? Epoxy? Could PU-glue work?

What about the sidewalls? Will they be the same as on the afterbangs?

Cheers

Jiri

Richuk · Post by **Richuk** » Mon Jan 24, 2011 2:22 am

Have you guys checked out the work completed by 'plywood' and 'davide', might give you a few ideas.

a.badner · Post by **a.badner** » Mon Jan 24, 2011 1:24 pm

[quote="jiri23"]I think the Line afterbang use 7 layers of vaneer. Two full lenght right over the base then one crossed, lengthwise, crossed, lengthwise and again one full length as a top sheet.

I also want to try to build a ski like that but it takes me much too long. At least I have the bases cut out now.

How are you going to glue the vaneers together? Epoxy? Could PU-glue work?

What about the sidewalls? Will they be the same as on the afterbangs?

Cheers

Jiri[/quote]

[quote]

so i did a little research about this. ( my friend has the afterbangs.)

-theres only five veneers, about 2mm thick

-only the top veneer is tapered. ( they lie in the video )

-there is like a mm thick black vds in the tips.

- there is epoxy inbetween the veneers ( visible epoxy, but very thin ) which means they lay up the core with the rest of the ski.)

[/quote]

windego · Post by **windego** » Mon Jan 24, 2011 3:17 pm

I layed up my veneer first with epoxy in the press. Then sanded a bit the transitions before treating it like a normal core. The 4 layers added up to exactly 7mm in my case which was perfect for a snowboard. I left the core as sidewall so using epoxy was a must.

Stan

doughboyshredder · Post by **doughboyshredder** » Mon Jan 24, 2011 3:55 pm

a.badner wrote:
- there is epoxy inbetween the veneers ( visible epoxy, but very thin ) which means they lay up the core with the rest of the ski.)

a.badner wrote:
- there is epoxy inbetween the veneers ( visible epoxy, but very thin ) which means they lay up the core before pressing.

LOL.

What does it mean again?

Seems you really don't know.

windego · Post by **windego** » Mon Jan 24, 2011 4:43 pm

If you try to lay up 4 layers of veneer and all the rest of the stuff at once good bloody luck! The maple veneer I had was hard to handle because of the natural curl. Doing the core press first is the way to go in this application.

Not sure if it is the best way to anyway as the weight is up a bit from a solid vertical core.

Stan

a.badner · Post by **a.badner** » Mon Jan 24, 2011 5:59 pm

to be honest i dont really know,
but
it looks like they lay up the veneers when they do the layup.

and there is only five veneers

a.badner · Post by **a.badner** » Mon Jan 24, 2011 6:01 pm

plus the veneers arent the super thin ones. ill take some pictures of my friends skis.

they are about 2mm thick and they dont really curl

falls · Post by **falls** » Tue Jan 25, 2011 12:05 am

Not to throw fuel on the fire, but that video you linked shows the construction using 7 veneers.
Base and edges
Triax glass
Full length veneer
Tip and tail rubber
Full length veneer
4 progressively shorter veneers.
Triax glass
Carbon ollie band
Wood veneer topsheet

........

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horizontal "skateboard" lamination ski

horizontal "skateboard" lamination ski