Search found 243 matches

by motoman
Tue Dec 13, 2016 4:08 am
Forum: Ski/Snowboard Design and Layup
Topic: Sublimation on veneer
Replies: 9
Views: 3778

Sublimation on veneer

Hello, has anybody tried to sublimate on veneer? With or without coating. The guys from sublimation companies say that it is virtually impossible to sublimate without polymer coat. I did some test with veneer, but without any polymers applied. I do not know what the result has to be but it is less b...
by motoman
Thu Dec 01, 2016 11:37 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Going to make sublimation press
Replies: 15
Views: 10023

Here is the picture of our heater construction
Image
by motoman
Wed Nov 30, 2016 12:58 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Problems with sidewalls beveling?
Replies: 17
Views: 7339

The file seems to be a useful tool. I guess my friends from the ski shop have such things.
But at the beginning I have to fix my router.
as the saying goes, first thing first
Dear pmg, thank you for good advice, I will definitely try bridge and shear the result after a while.
by motoman
Wed Nov 30, 2016 12:25 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Problems with sidewalls beveling?
Replies: 17
Views: 7339

pmg wrote: Yes, but not neccessarily handmade. Its a standard thing with most routers, e.g. mine:
https://images.bosch-professional.com/d ... -24345.jpg
Are there any problems on the places of transition curve? Dovetail might get dipper on the border of tip and tail if to be inattentive.
by motoman
Wed Nov 30, 2016 12:12 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Problems with sidewalls beveling?
Replies: 17
Views: 7339

And you do not need a dovetail with bearing when using the upside down method. just a normal fence on the router to limit the routing depth. Like this you can rout in several passes if needed. Hope you get what I mean. I might understand you. This is handmade accessory that copy the curve of sidecu...
by motoman
Wed Nov 30, 2016 12:03 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Problems with sidewalls beveling?
Replies: 17
Views: 7339

skidesmond wrote: Motoman, Maybe you need a better router. Y
You are probably right. The reason lies in in our router.
But now I am filled with a sense of confusion. I'm right afraid to touch the router and understand that I do not have a choice))
by motoman
Wed Nov 30, 2016 11:41 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Problems with sidewalls beveling?
Replies: 17
Views: 7339

Hi, i think the dovetail is the easiest way. tilting the whole board on the table might lead to problems with the sidecut of the board, as the board is wider near the tail and tip. Afaik most people here just turn the ski/board upside down when routing the sidewalls, seems the easiest way. Hello, u...
by motoman
Wed Nov 30, 2016 8:50 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Problems with sidewalls beveling?
Replies: 17
Views: 7339

Basically think of it as a board with an angle that is as long as the ski. Put the ski on the board. Hold it in place by hand or clamp. Then slide the board with the ski on it along the router. The router is mounted in the table just as you have it but do not tilt the router. Does this help? I can ...
by motoman
Wed Nov 30, 2016 8:17 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Problems with sidewalls beveling?
Replies: 17
Views: 7339

But I was thinking of having the router mounted underneath as you have it with a straight cutting bit. Instead of tilting the router make a sled at your desired angle for the ski to sit on. You can hold the ski in place or make some kind of attachment to hold it in place. Thoughts? Excuse me, what ...
by motoman
Wed Nov 30, 2016 7:21 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Problems with sidewalls beveling?
Replies: 17
Views: 7339

What do you mean by the router armature? And where does it break? Based on the pic, the top part of the setup needs to be able to follow the contour of the ski. I see that there is a spring there so looks like that's will allow it to flex up and down. Dear Skidesmond, by the router armature I meant...
by motoman
Tue Nov 29, 2016 12:56 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Problems with sidewalls beveling?
Replies: 17
Views: 7339

Problems with sidewalls beveling?

Hello, just build a device for sidewalls beveling but immediately faced the problem with router. It is second time when router armature breaks. I don't know what the reason... https://s15.postimg.org/domkduyyv/WP_20161025_22_41_39_Pro.jpg The guys from repair shop say that there might be to big pres...
by motoman
Tue Nov 22, 2016 11:17 pm
Forum: Ski/Snowboard Design and Layup
Topic: Stiffness Calculation
Replies: 18
Views: 10639

If you are talking about retailing a model of snowboard with different lengths then yes I think the smaller sizes need to be just a little bit softer than the bigger sizes as bigger people weigh more. You are right. Bigger people weight more. That is why I was confused when did practical measuremen...
by motoman
Tue Nov 22, 2016 1:04 am
Forum: Ski/Snowboard Design and Layup
Topic: Stiffness Calculation
Replies: 18
Views: 10639

I have a question for forum users. Lets observe two snowboards or skis of one model. What do you think, has the smaller ski or snowboard be softer then bigger? Or they have to be the same stiff? By the stiffness I do not mean the stiffness of cross section ( The bigger the product the bigger the sti...
by motoman
Fri Nov 18, 2016 12:12 pm
Forum: Ski/Snowboard Design and Layup
Topic: Stiffness Calculation
Replies: 18
Views: 10639

Thank you for good advice. Now I am working of FEM modeling and analysis hope soon I will get some interesting results which may be will post here.
by motoman
Thu Nov 17, 2016 6:36 am
Forum: Ski/Snowboard Design and Layup
Topic: Stiffness Calculation
Replies: 18
Views: 10639

Just try to go deep in calculation of stiffness. I am stuck in calculation of torsional stiffness. The calculation of bending stiffness if simple because of relative material uniformity along main axis. But in case of fiberglass it has to be take into account orthotropy. Has anybody the experience f...