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Verifying a Binding Mount

post #1 of 9
Thread Starter 

I'm pretty sure this is nothing but I'd like to verify that my shop did a solid job on mounting FKS140 bindings to my brand new Bonafides.

 

Visually, they look "off."  My wife first noticed it.  I had no notion even after a whole day of skiing them.

 

The topsheet looks asymetrical about the skis centerline.  Like one edge has additional topsheet overhang.  This makes the easy measurement with a ruler come back wonky.

 

I read the Rosi/Look install manual and it looks like they go off the edges with a physical jig.  If the shop did that, I'd find it hard to believe they screwed it up.

 

Still, I'd like to measure.  I'm an engineer so I understand and have access to tools like calipers and probably squares.  What's the best way to check their work?

 

Thanks.

post #2 of 9
Use a caliper and take measurements with binding on or off. The Rossi and look jigs are prone to the rubber feet sliding off partially. This is usually the reason for an offset mount. Metal jigs also can be bent, especially if they've been dropped. If a paper jig was used than I would fault it to pilot error.
post #3 of 9
Thread Starter 

How off is too off?

post #4 of 9
Quote:
Originally Posted by dmourati View Post

How off is too off?

I'd say about 1/64th of an inch, which can usually be fixed by taping the screws at an angle to straighten things out.

post #5 of 9
Thread Starter 
Quote:
Originally Posted by Racer View Post

I'd say about 1/64th of an inch, which can usually be fixed by taping the screws at an angle to straighten things out.

 

I pulled out a digital vernier caliper.  My technique may not have been perfect but I came up with about 1mm off, 31 mm versus 33 mm edge to center of the screw.  Tough to be very precise because of the three dimensionality of the problem.  I needed some kind of offset caliper.  

 

The top sheet was more off which made us notice in the first place.  It seems like there is extra topsheet material on the right edge of both skis.  

 

I saw the feint outline of a circle above the toepiece that looked like the outline of a jig.

post #6 of 9
Quote:
Originally Posted by dmourati View Post

 

I pulled out a digital vernier caliper.  My technique may not have been perfect but I came up with about 1mm off, 31 mm versus 33 mm edge to center of the screw.  Tough to be very precise because of the three dimensionality of the problem.  I needed some kind of offset caliper.  

 

The top sheet was more off which made us notice in the first place.  It seems like there is extra topsheet material on the right edge of both skis.  

 

I saw the feint outline of a circle above the toepiece that looked like the outline of a jig.


You are good to go. Don't worry about it. Also you need to measure from the metal edge not from the top skin edge....

post #7 of 9
Quote:
Originally Posted by cfr View Post


You are good to go. Don't worry about it. 

Ya I would agree but..

 

Fact is they look "off".  

 

When I buy new equipment I demand that it is perfect.  If I wanted crap, I would buy used.

 

Not trying to sound all high and mighty, but our store policy is that we would reinstall the binding properly, without compromising the integrity of the ski, and at no charge.  It's a rookie mistake, although the pros aren't excluded from it.

 

15 yrs ago I worked for a certain independant shop and their mis-mount policy was that the tech would have to buy the mis-drilled ski, and the shop would replace with a new one. -  That's not cool.  

 

It's an easy fix, if you know what to do.  Sometimes you can pull it in with the screws on angle, but most of the time a heli-coil or insert install is best.

 

If you go back to the shop - Don't go in saying they messed up your gear. Instead, say that the skis are awesome, but your wife first noticed something wrong.  Let us know how it goes.

post #8 of 9

If you have a scale on the bar of your caliper, open the caliper to contact both base edges and check the reading of the center of the binding.  there was recently a brief thread about finding true center.

post #9 of 9

Assuming the top sheet is mostly flat, measure from the metal edge with a sliding square--blade lying on and parallel to the topsheet, sliding component obviously perpendicular to the top and contacting the metal edge. If the top sheet is off the binding will look off regardless of whether or not it's centered.  From what I understand top sheet problems are common--a particular problem when the boot center mark is on the top sheet. In your case hopefully it's just a cosmetic problem. Solution--look where you're skiing not at your bindings.

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