Search found 370 matches

by Akiwi
Sat Oct 17, 2015 12:38 am
Forum: Journals: Log Your Ski Building Progress
Topic: HB (Hansen Boards)
Replies: 224
Views: 63763

Good tips.
I sealed the inside of the vacuum box by mixing wood glue and water and painting that over the MDF. I will do the same on the top and sides.

I'm off to get some Plywood to do a test run.

I'll let you know.
by Akiwi
Fri Oct 16, 2015 3:18 pm
Forum: Ski/Snowboard Design and Layup
Topic: Beginners Questions
Replies: 75
Views: 28572

I have just finished my table and the planner bridge. Phew.. was a lot of work. I'll test it tomorrow. I'll also picl up some ply tomorrow to see what it looks like.
by Akiwi
Fri Oct 16, 2015 10:11 am
Forum: Journals: Log Your Ski Building Progress
Topic: HB (Hansen Boards)
Replies: 224
Views: 63763

Ok, Table is nearly finished.
I tested it and it holds quite well. Maybe I need a little more powerfull vacuum
Image

Image
by Akiwi
Fri Oct 16, 2015 3:44 am
Forum: Ski/Snowboard Design and Layup
Topic: Beginners Questions
Replies: 75
Views: 28572

Realy nice looking skis Gilo.
I think I will start off with ply cores.. As a learning experience.. and for my first pairs of ski / snowboard they say K.I.S.S.

In the "Community skis" video where I got the idea from, he was saying that the plywood cores give more torsional rigidity.
by Akiwi
Fri Oct 16, 2015 1:31 am
Forum: Ski/Snowboard Design and Layup
Topic: Beginners Questions
Replies: 75
Views: 28572

The bCores look nice, but you will have less wood to hold your screws in than using multiplex. They recommend either using inserts, or adding a binding reinforcement plate as indicated here: http://www.bcomp.ch/files/bcoresd200_process-guidelines-en-orange.pdf I am surprised you were worried about y...
by Akiwi
Thu Oct 15, 2015 2:13 pm
Forum: Ski/Snowboard Design and Layup
Topic: Beginners Questions
Replies: 75
Views: 28572

This might be due to half the layers being cross grain which does nothing in terms of longitudinal stiffness in a ski, and you don't really need side to side stiffness. In a proper ski core the grain runs along the length of the ski which helps to stiffen it a bit and probably also make it lighter ...
by Akiwi
Thu Oct 15, 2015 6:09 am
Forum: Ski/Snowboard Design and Layup
Topic: Beginners Questions
Replies: 75
Views: 28572

You reckon?. From my experience the plywoods I have used are pretty good. Probably depends on where you get them. I use Marine quality Birke Multiplex. OTOH I have never pulled a piece apart to see what exactly is inside. But I have never noticed any gaps or knots. I guess I will just have to try it...
by Akiwi
Thu Oct 15, 2015 12:16 am
Forum: Ski/Snowboard Design and Layup
Topic: Beginners Questions
Replies: 75
Views: 28572

Hi all. My Profile table is nearly finished, and I am trying to build some fake cores using pine, so I can polish my technique. I am concerned if I can get a flat surface without a plane.. I might take the bases to the local carpenter or wood seller to get them to make a flat surface for me. However...
by Akiwi
Wed Oct 14, 2015 11:35 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Vacuum Pump advice
Replies: 15
Views: 7392

Thanks for the advice, one more question. If I do buy the Thomas and need to recondition it how difficult a process is it? It's not too difficult. Though I messed up with mine. If you can get a reconditioned pump go for it. I had problems getting the screws open as they were so tight. I later heard...
by Akiwi
Wed Oct 14, 2015 7:27 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Vacuum Pump advice
Replies: 15
Views: 7392

I'm located in BC Canada... Hmm, that might be a bit far for a German handler. You need something like this. http://www.ebay.ca/itm/Thomas-2660CE35-111-Motor-600314D-Vacuum-Compressor-Pump-Tested-Working-/161841227417?hash=item25ae7d2699 But you have to find out how much vacuum it pulls. I bought a...
by Akiwi
Tue Oct 13, 2015 10:12 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Vacuum Pump advice
Replies: 15
Views: 7392

With regards to vacuum, you can't get more vacuum than -1 atmosphere for pressing things. I use a Thomas 2660 pump that I picked up on e-bay, for about €60, and reconditioned for another €60. Save the trouble and get a reconditioned one. Here in Europe you can pick them up for about €120. They have ...
by Akiwi
Mon Oct 12, 2015 10:27 pm
Forum: Ski/Snowboard Design and Layup
Topic: Camber centre under foot centre?
Replies: 6
Views: 3193

It might actually turn out to be a good thing. A breakthrough in ski technology!!! As you go into a carving turn with your weight forwards, you are using the ball of your foot for the ski pressure, therefore if the camber is located further forward, it will give a more even preasure on the snow. Min...
by Akiwi
Mon Oct 12, 2015 10:20 pm
Forum: Ski/Snowboard Design and Layup
Topic: Layup issues
Replies: 13
Views: 5614

Or add a layer of UD (Uni Dimensional)
or Un dead
or Utterly Dumb

Sorry, I see there is UD in there
by Akiwi
Mon Oct 12, 2015 10:17 pm
Forum: Ski/Snowboard Design and Layup
Topic: Beginners Questions
Replies: 75
Views: 28572

+Thanks for the answers guys. I know I won't get it right the first time, so yesterday i bought some Pine, in the dimensions I will using to make my Ash cores, so I can do a practice run. I am using the router to start with, and at some stage will get a Planer if I make it that far. But I want to st...
by Akiwi
Mon Oct 12, 2015 12:56 pm
Forum: Ski/Snowboard Design and Layup
Topic: Beginners Questions
Replies: 75
Views: 28572

Beginners Questions

Not sure where the best place is to put all these questions so I will start one thread for all sorts of beginner questions. Maybe others can use this as a general purpose questions thread. Question 1: Software. What software is the best to use. I have tried SnoCAD-X, and this looks pretty good, but ...