Voile 3pin (mountaineers) + Madshus Annum

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Slovski
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Voile 3pin (mountaineers) + Madshus Annum

Post by Slovski » Mon Jan 21, 2019 10:49 am

Posting first time here so if the topic was covered elsewhere please point me towards and sorry.
Anyway I want to mount the Voile 3pin bindings to Madshus Annum skis.
There was a thread about how to do it but I'll ask again as I got confused by 3pin line thats marked on the skis.

So do I use the 3pin line thats marked on the skis to start from (i have 28 mondo plastic boots)
Or should I find ski 'balance point' or 'chord center' point? As I have checked these two are not the same point on the skis.

I would want to use skis mostly for uphill/down skiing with some kick&glide in between.

Thanks for all the help.

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lilcliffy
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Re: Voile 3pin (mountaineers) + Madshus Annum

Post by lilcliffy » Mon Jan 21, 2019 11:29 am

Welcome Slovski!

I have 195cm Annums that I mounted to NNNBC at balance point (BP)- for their XC performance (I have actually appreciated this ski more by treating it as a XC ski...)

I cannot remember where that was in relation to the 3-pin line on the ski....
Where does the 3-pin line fall in relation to BP?

Did you ask Madshus for their mounting advice?
If there is a "pin-line" on the ski I would assume that is there recommended mounting point for a XC binding (i.e. 3-pin; NNNBC)- regardless of boot length...

I have a pair of Guides (exact same ski) with 3-pin bindings mounted at Chord Center (CC)- this just gave me an arbitrary forward mounting point for "better" turn initiation.

How much further forward is the CC?

Hopefully others with this ski- mounted for Telemark- will respond as well.
Cross-country AND down-hill skiing in the backcountry.
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phoenix
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Re: Voile 3pin (mountaineers) + Madshus Annum

Post by phoenix » Mon Jan 21, 2019 7:50 pm

As I recall, I mounted my wife's Annum's on their recommended pin line ( old Riva cables on hers, but I'd do the same for 3 pins). Seem to ski fine for her. Don't remember where that point was relative to chord center, but that would be my other reference point for that ski, and I'm sure would ski just fine.
Now I'm curious myself, but it's -15 below and the wind's blowing... I'll have a look when it warms up some.



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Slovski
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Re: Voile 3pin (mountaineers) + Madshus Annum

Post by Slovski » Tue Jan 22, 2019 1:33 am

Thank you both. Will have to measure where the CC lines up with ski recommended pin line. There are three lines to suit boot size.

I didnt ask Madshus as I reckon snow will melt before getting any answer from them but I've asked at Aventure Nordique where the bindings were purchased. Alas I dont speak French but here's there answer:

"Comment monter des fixations 75mm sur des skis de randonnée nordique ?
En skis de randonnée nordique, la puissance de l'appui est appliquée sur un point au niveau de la ligne des
3-Pin, c'est à dire au niveau des 3 trous sous la semelle des chaussures 75mm. Le but est d'obtenir un
montage le plus neutre possible vis-à-vis des réactions du ski. L'avantage de ce type de montage « neutre »
est de marcher avec tous les skis, qu'ils soient droits ou paraboliques. (Sans position avant en attaque, ni de
position arrière pour la poudreuse).
Procédure de montage :
1. Avec un mètre, mesurez la longueur de votre ski, du talon au bout de la spatule. Le mètre doit être
tendu
2. Relevez la longueur mesurée et la diviser par 2. En reprenant votre mètre en partant du talon,
marquez cette mesure obtenue sur le ski (longueur divisé par 2) avec un feutre indélébile, on
marque ainsi le point neutre du ski, le « pins on chord center ».
3. Attention, le point obtenu est à modifier légèrement en fonction de la taille de vos chaussures. Car
le point que l'on a marqué est le montage neutre avec des chaussures de longueur moyenne, c'est à
dire 31 cm (mesure du talon aux 3 pins).
On va adapter notre point de montage de fixation à nos chaussures :
Pour cela il faut mesurer la longueur de la semelle de ses chaussures. Mesure à prendre du talon
aux 3 pins (les trois trous sur l'avant de la semelle de la chaussure).
Puis soustraire à votre longueur de semelle 31 cm.
Puis, si votre semelle fait plus de 31 cm, pour chaque centimètre en plus il faut rajouter 0,5cm
devant votre marquage du point neutre sur votre ski (vers la spatule) et si votre semelle fait moins de 31
cm, il faut pour chaque cm de moins reculer de 0,5cm la ligne du neutre sur vos skis (vers le talon).
Exemples :
- Pour des petites chaussures mesurées à 27,9cm (du talon au 3 pin), on fait 27,9-31= -3,1cm donc
3,1x0,5= -1,55cm, il faut donc reculer mon trait de montage de 1,5cm par rapport au trait du neutre
que j'ai marqué sur le ski.
- Pour des chaussures plus grande mesuré à 33 cm, 33-31=2cm donc 2x0,5= 1cm, ici il faut donc
marquer mon trait de montage 1cm devant mon trait du neutre (avancé de 1 cm vers la spatule).
-
4. Placez votre gabarit de montage (ou votre fixation si vous n’avez pas de gabarit), en alignant la ligne
des 3 pins avec votre nouvelle ligne de montage « neutre » (celle que vous venez de marquer après
adaptation en fonction de la taille de vos chaussures), marquer les points à percer.
Percez avec un foret de 3,8 ou 4mm (à adapter avec les vis de vos fixations) attention lors du perçage de
bien marquer vos forets pour limiter l'enfoncement afin de ne pas transpercer le ski ! Mettre une goute
de colle à bois, puis visser vos fixations fortement.
5. Monter la talonnière en la centrant sous le talon de la chaussure, chaussure montée dans la
fixation. Important surtout si vous avez une cale de montée.
Et voilà, vos skis sont parés pour de nouvelles aventures en 75mm ! Bien sûr, il existe d'autres
méthodes de montage des fixations. Celle ci à l'avantage de marcher avec tous les skis, en rendant le ski
assez neutre pour être efficace en toute neige.


There are some maths as I can see but with google translate it just doesnt sound to well.



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Rodbelan
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Re: Voile 3pin (mountaineers) + Madshus Annum

Post by Rodbelan » Tue Jan 22, 2019 8:34 am

Basically, what they are saying is: mount pin line on chord center... And they provide a way to adapt to shoe size as well.

I would say: mount them pin line on chord center. Do not bother with shoe size, unless you wear size 15 or 4...

You need to measure the ski from tail to tip with full tension on your measuring tape. Divide by 2. Report that exact measure on ski, measuring from tail. Draw a line (check with the marking provided by Madshus and compare)... Place 3 pin line on that mark with your paper template. Drill-glue-mount. As simple as that. If you are not satisfied, there is noting wrong with moving the binding fore or aft... You are not dealing with fundamentals of nuclear physics! If you are a bit fore or aft, you will adapt to it.
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Slovski
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Re: Voile 3pin (mountaineers) + Madshus Annum

Post by Slovski » Wed Jan 23, 2019 1:55 pm

So I did it. The ski chord center was directly above the marked ski 3pin line for smaller size boots. As my boot fall into medium size boots, and according to tips from Aventure Nordique I`ve moved 3pin line to the next marked for medium sized boots and done mounting. It went much easier to what I`ve expected. And you are right it aint rocket science :D .

Thank you guys for tips and directions. Now lets wait for the powder to try the rig out :mrgreen:



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