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How to un sharp some ski?

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Will.T
Posts: 3453 - Karma: 1,279

Its will be my first year on park ski and I will just make some park but at home I have PVC pipe and my ski cut in and the pipe loose some small layers..

Some of my friend tell me to un sharp them but how?

Thanks for help k+.

Nov 24 2010 9:23PM
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Parrish
Posts: 8695 - Karma: 1,008
By unsharp you mean detune. Un sharp makes you sound like a 2nd grader.
Nov 24 2010 9:24PM
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BEARS.
Posts: 5380 - Karma: 696
hit it against a boulder like a caveman.
Nov 24 2010 9:26PM
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No_Dub
Posts: 3357 - Karma: 294
use soap and water
Nov 24 2010 9:27PM
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Will.T
Posts: 3453 - Karma: 1,279
Sorry for my English language, I know it is not developed, but alas, in Quebec, English classes are the same at the primers school and highschool..
Nov 24 2010 9:31PM
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stickerman
Posts: 2043 - Karma: 147
Get a gummy stone and rub your edge against that. But if you don't have one use a rock or a nail file.
Nov 24 2010 9:33PM
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wesley.
Posts: 6483 - Karma: 1,049
this will work the best
Nov 24 2010 9:35PM
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CHARLES.BRONSON
Posts: 3123 - Karma: 229
drill and grinding wheel or a file at a 45 degree angle, then gummy or diamond stone
Nov 24 2010 9:35PM
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Ftacnik
Posts: 1997 - Karma: 111
Use a file or gummi stone (I think that's what they're called) and just file/stone/whatever your edges till they're unsharperer har har.

Props for being able to speak more than one language (>implying you can speak French too)
Nov 24 2010 9:36PM
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Simmo
Posts: 512 - Karma: 28
Hold skis in both hands. Repeatedly bash them on your head to soften them up, then rub the edges across your forehead for 10 minutes to detune them.
Nov 24 2010 9:37PM
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Ftacnik
Posts: 1997 - Karma: 111
Stop
Nov 24 2010 9:39PM
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7-3instacall
Posts: 999 - Karma: 1,005
THE best method is to know the guy at a store who tunes skis (sharpens edges) and ask him to detune your skis by passing them on the machine at an angle, works like a charm. Other wise be very patient, sit down, get a file and get it done.
Nov 24 2010 10:12PM
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Caleb.E
Posts: 3556 - Karma: 1,014

This is what i do

-get a metal fisle and grind it against the edges about 2/4s of the ski(in the middle)

-then take a diamonde stone and smooth them out so they arnt alll shitty from the file

Well thats what i do and works fine

Nov 24 2010 10:44PM
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Will.T
Posts: 3453 - Karma: 1,279
Thanks guy, now I know what to do! k+ all
Nov 25 2010 6:45AM
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Mr.Huck
Posts: 6096 - Karma: 14,893
This is the best thing I have found for detuning without trashing your edges.  They are sanding sponges sold at any hardware store, Home Depot, Lowes.  Buy one that has fine grit on one side and medium grit on the other.  Coarse is too much.  Run the sponge up and down the entire length of the edge.  Start with medium grit and then flip the sponge over to fine grit at the end.  The are soft and light weight so you can carry it with you in your pocket when you ski.  Also works great for a rail that has gotten a little chewed up. 

Click for larger image

If you need more instructions, see the video I made called "How to dull your edges".  It's in my vids and you can also find it in gear talk on the Official Ski/Binding maintenance thread. 
Nov 25 2010 10:12AM
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Get.Kronk
Posts: 2543 - Karma: 226
do what i did. Ski for two years without getting them sharpened
Nov 25 2010 11:41AM
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willy_baller
Posts: 1622 - Karma: 693
ya. I have never had a problem catching an edge on a rail... just slide rails and what not and they will detune themselves.
Nov 25 2010 12:39PM
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bananas
Posts: 1419 - Karma: 164
tabarnack, tu les detune avec un faire. ou si tu les glise sur un trottoir sa vars arondire les edge
Nov 25 2010 12:53PM
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freestyler540
Posts: 13050 - Karma: 18,313
use a file
Nov 25 2010 2:08PM
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Mr.Huck
Posts: 6096 - Karma: 14,893
There is nothing worse than this.  Never use a file to detune.  You can easily destroy your skls.  Take too much off of your edge and the skis are done. Also it is very easy to burr the crap out of your edges with a file.  If you ever have an interest in carving again,  burred edges make it so that when you try to carve it feels like you are dragging an anchor.  Makes trying to gauge speed for jumps way harder.  Spend $1.50 and buy a sanding sponge.  It is actually so much easier to detune with a sponge than a file or stone anyway and you won't butcher your fingers in the process. 
Nov 25 2010 2:19PM
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I_Am_Mod
Posts: 13214 - Karma: 3,753
detuning a ski =/= rounding edges for rail-skiing, bear that in mind, a detuned ski is technically speaking still very sharp ....


what i did with my parkplank, take a rock and rub it up and down the edge, it's prehistoric, but hey, if you're gonna hit metal rails they'll take much worst....


detuning with a gummystone is just breaking the very sharpest point and removing brims from sharpening...

+ i never ever sharpen my parkskis, i just let the edge become what it is now and i've never caught an edge ...


but i think that in your case, starting out with a gummystone is the safest, then hit rails and just let the edge become rounded .....


Nov 26 2010 8:48AM
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ONE-UP
Posts: 609 - Karma: 53
gummy stone all the way
Nov 26 2010 10:58AM
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andrew95
Posts: 2090 - Karma: 124
agreed
Nov 26 2010 12:16PM
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