You never win friends with salad!

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windsurfer
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You never win friends with salad!

Post by windsurfer »

Hi!

Finally I have all the materials I need to build a ski. Thanks to all of you that helped me!

Now I started to build the press. A vacuum press is too expensive for me. I'm going to build a press of wood with 10 threaded bolts on each side. I hope that works.

I have some air-dried ash shelves. do I have to build the ski out of strips? The problem is, if i cut them into strips, i will not have enough material! The ski will not be wide enough.

I already have a name for my skies:
"You'll never find friends with salad."
It's a quote of a Simpsons episode.


karsten
Last edited by windsurfer on Tue Mar 07, 2006 11:35 am, edited 1 time in total.
davide
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Post by davide »

I like the wood press, but I suppose you must really design it carefully, to be sure to have a uniform and sufficient pressure along the whole ski. I did some trails oressing longboards.
I would use three rows of bolts (10 or more per row) to press a pair of skis.
Maybe I will send you some drawings.
möp
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Post by möp »

hmm i don't think that vacuum presses are expensive and its easier tio build

i payed 0$ for it ;)

the press don't need to be that robust as if your use a fire-hose press so its enough if you use about 5 ribs of wood and one sheet of plywood over the ribs
Greg
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Post by Greg »

I have been thinking about making a pair of skis without cutting strips for the core. I am curious how they would turn out. As for the ash, I have a couple cores set up that are made of ash, and they are really stiff and pretty springy (which is a good thing). One thing you might do if you make solid cores, is to use extra layers of fiberglass. This would give you a little extra strength. The only worry I would have about a solid core is that it might warp significantly when you profile the core. But then again, it is hard to tell how a piece of wood will move around when it is shaped.
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windsurfer
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Post by windsurfer »

the press is nearly done.

i'd like to insert a pic... how does that work?
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windsurfer
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Post by windsurfer »

check out my photos:


http://www.stud.uni-karlsruhe.de/~uryo/karsten/


In the middle i used a plastik plate. every 10cm there are two threaded bolts (8mm). at the ends of the press i will use the cut-out from the lower part of the press.

I wanted to use the whole cut-out, but i think its very difficult to make it accurately, because the thickness of the ski varies.

I hope that you understand what i want to say....
Do you think it could work like that?
davide
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Post by davide »

It looks nice. I suppose it should work.
Maybe just do some tests, like laminating some glass on a wood board, to be sure that you manage the whole process.

It is very nice that you are trying something different.

Good luck.
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littleKam
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Post by littleKam »

i think it may work. maybe try using a torque wrench to get all the nuts tightened down somewhat uniformly? how do you plan on pressing the tip and tail sections? i like the simplicity of the press.
- Kam S Leang (aka Little Kam)
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windsurfer
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Post by windsurfer »

thanks for your feedback! now i am more confident.

@ littleKam: i think its a great idea with the torque wrench!

I will continue with the press in a few weeks after returning from france (les Arcs) :-P
then i will show you the whole press with the tip and tail section. i tried to explain it, but it seams to be too difficult...

cu in a few weeks!

karsten
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windsurfer
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Post by windsurfer »

My press is ready!
But building the ski takes a lot of time. An i have several problems:

1. How can I bend the edges, so that they fit EXACTLY to the base?
I put the ends of the edges into our fireplace and they started to glow. Check out a picture (its not exactly!!) http://www.stud.uni-karlsruhe.de/~uryo/ ... 20edge.JPG

2. Before I cut the base, I taped it with double-side tape at the template. Afterwards, it was very difficult to take off the tape! Next time I will use another one. With which kind of cleaner can I clean the base from the rest of the glue?

3. My old planer broke! The bearing became to hot... damn.

more pictures:
http://www.stud.uni-karlsruhe.de/~uryo/karsten/

rock on,
karsten
Lennart
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Post by Lennart »

I hope you don´t try to press the skis with the base turned the way it is on picture 4. The rough side is the one treated for bonding to epoxy.
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windsurfer
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Post by windsurfer »

are the sides really different? i thought bouth sides would be the same. thank you for the hint!
davide
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Post by davide »

I sold you the base, right? That one has both sides rough. so it does not matter which side you put up.

Where are you building the skis? I will visit a friend in Koeln next week (Karneval...), so I can maybe come to have a look at your skis...
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windsurfer
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Post by windsurfer »

hi davide!

i'm building the skis in Ulm. but next week i will go skiing in austria.
How did you bend the edges?
davide
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Post by davide »

Usually I do not put edges at tip and tail.
Image

Here I flame treated the edges, to make them softer, then I bent them by hand. But they did not fit perfectly.
Image
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