Ski Builders Forum

Vinman wrote:Not sure what the initial parameters do really but maybe try running the auto tune and see what happens.

I'll be interested to see what you come up with. I have these PIDs but I'm not done with my control box yet.

Maybe try the lightobject forums for more info as well.

Auto tune did not help.

Replace the thermocouple. Those buggers fail at the worst times...like now.

I've got a few. Swapped em all around no difference.

Thinking I just got a bad one. Gonna try and get lightobject to replace it.

Another convertible mono ski in the press. Went good this time. Fingers are crossed that it keeps up that way.

Hi doughboy
What are your dimensions on these monoskis?
Core thickness?
I've been talking with a guy who rides a sitski and he wants me to make him a powder ski that will give hime float. He reckons he has seen a video of someone in a sitski with a monoski strapped to the bottom floating around in deep pow like an able bodied skier. Any tips on this monoski building appreciated (a bit off topic sorry).

LOL.

Convertible mono ski. AKA split mono ski. AKA word play.
http://www.evo.com/snowboards/lib-tech- ... pingdotcom

Last one came out perfect, btw.

Ha
That's a strange way to describe a splitboard! i thought you had decided to bypass the whole learning to ski thing and decided to become a backcountry hiking monoskier!

Voile has the patent on splitboards. They do not hold a patent on convertible mono skis, which are built without inserts. Lib and Burton are now selling their splits without inserts. Lib is calling them convertible monoskis and I think it's funny, so I'm going with it. Not sure what Burton is calling theirs. Presumably they are building them without inserts because of Voiles licensing fees. If I sell any I will have to build them without inserts, since Voile won't license to small builders. (so I've been told).

Ah. Makes sense. Very reflective of the times that you can patent the pretty obvious idea of making a splitboard. Then again if I had of thought of it I would be sitting back on the royalties!!
Do you then have to buy the kit from voile for the bindings?

falls wrote:Ah. Makes sense. Very reflective of the times that you can patent the pretty obvious idea of making a splitboard. Then again if I had of thought of it I would be sitting back on the royalties!!
Do you then have to buy the kit from voile for the bindings?

Or Karakoram, which has new splitboard kit that works with the voile hole pattern. I am very surprised that they have not been sued by voile.

DBS here is some info from the lightobject forum. might help your problem, might not.

http://www.lightobject.info/viewtopic.php?f=5&t=320

I am very surprised that they have not been sued by voile

I guess it depends on whether their patent is for the split board idea or the split board idea and the binding mounts.
Building something to fit into a set of holes shouldn't be illegal. All the snowboard binding makers work off the same (usually) template of holes. I wish ski binding makers would follow suit. would make life a lot easier for adding inserts to a pair of skis.

I had a thought about the TC embedded within a heat blanket vs one on the cassette.
Two theories:

1. A material can become hotter than the apparent heat applied to it. For example a sheet of metal or some black plastic in the sun can become much hotter than the actual air temperature (I think this is pretty true).

2. Our heat blankets are made out of silicone that is an insulator.

So:
A TC embedded in a heat blanket is surrounded by an insulator therefore will likely read a lower temperature than the heat being eminated from the blanket (I think the embedded TCs are reading lower than the pressing temp that's why people cook boards/skis).
And this excess heat is then even further exaggerated by the ability of aluminium to heat up efficiently.

Bottom line is that the temperature you wish to control is that of the aluminium plates pressing the ski and therefore this is where you need to take the temperature measurement.
The TC embedded within the blanket is not necessarily displaying the wrong temperature it is just displaying the temperature it is experiencing. Unfortunatley this isn't the same as the temperature teh ski is experiencing.

Any comments/corrections?

Falls: nailed it. carry on....

Vinman wrote:DBS here is some info from the lightobject forum. might help your problem, might not.

http://www.lightobject.info/viewtopic.php?f=5&t=320

Dude, you're awesome!

thank you so much. Pretty sure that nailed it.

Falls, I believe you are correct.

I place my thermocouples between the heat blanket and the aluminum sheet that will be closest to the laminate.

no worries, glad it helped. Might help me and others in the long run also.