Results 3,426 to 3,450 of 6863
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01-07-2020, 11:25 PM #3426
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01-08-2020, 08:52 AM #3427
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01-08-2020, 09:48 AM #3428Registered User
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- Apr 2018
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- 295
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01-08-2020, 02:11 PM #3429
Can anyone with more smarts than me tell me how far the holes would be to remount a pair of skis w the same binding from a 325 to a 300mm BSL? Any concerns with the holes being too close?
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01-08-2020, 02:14 PM #3430
Sounds like about 12.5mm apart.
Sent from my SM-G955U using Tapatalk
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01-08-2020, 02:19 PM #3431
Edited: Oops. Somehow I read that as 325 to 330, not 300.
Yeah 12.5mm.
But depending on the binding pattern, the "outer" holes may be closer to the inner holes than the original "outer" set. [Thus your concern may not be with, for example, the "new" back screws for the heels interfering with the old back holes for the heel - but with the "new" back heel screws interfering with the "old" front screws holes.. I can't think of a pattern I know off-hand that's that close, but it's a factor to consider.] (I'm having a terrible time writing the description clearly - sorry for all the edits!)
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01-08-2020, 02:37 PM #3432
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01-08-2020, 03:06 PM #3433
Let the radius from the center of the hole to the center of the torus tube be c, and the radius of the tube be a. Then the equation in Cartesian coordinates for a torus azimuthally symmetric about the z-axis is
(c-sqrt(x^2+y^2))^2+z^2=a^2,
and the parametric equations are
x = (c+acosv)cosu
y = (c+acosv)sinu
z = asinv
for u,v in [0,2pi). Three types of torus, known as the standard tori, are possible, depending on the relative sizes of a and c. c>a corresponds to the ring torus (shown above), c=a corresponds to a horn torus which is tangent to itself at the point (0, 0, 0), and c<a corresponds to a self-intersecting spindle torus."timberridge is terminally vapid" -- a fortune cookie in Yueyang
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01-08-2020, 03:10 PM #3434
Depending what you want to do with mount point you could potentially get away with moving just the toe or just the heel too. Obviously bindings with a larger BSL adjustment, and a desire for a bit of a departure on boot center would make that more viable.
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01-08-2020, 03:17 PM #3435
I'd like to mount them on the line for a 300mm BSL for a Shift that was previously mounted on the line for same binding for a 325 BSL. Also, any overlap issue w the middle nubbon dealie?
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01-08-2020, 03:22 PM #3436
Just remount 'em then. 12.5mm center to center isn't bad at all.
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01-08-2020, 04:41 PM #3437
Sorry, I'm like a broken record. I just love this article and the fact that it's the only experiment I've seen that produced quantifiable results re: hole proximity vs pullout strength. 7mm center to center hole spacing and you get near 100% pullout strength.
https://www.blackdiamondequipment.com/en_US/qc-lab-remounting-previously-drilled-skis/qc-lab-remounting-previously-drilled-skis.html
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01-08-2020, 05:07 PM #3438Registered User
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- Jan 2011
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- Calgary, Alberta
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That's a cool article! But super limited info on the actual process. How did they test pullout strength? Did the ski they mount have a metal layer (presumably not since they used a 3.5mm bit)?
Note also that they mention the ski they use is known to be particularly burly, so 7mm is probably best case scenario (e.g. absolute minimum center to center distance).
I have a beater pair I should do this on...I just need a force meter or hanging scale or something to measure the pullout force.
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01-08-2020, 05:28 PM #3439
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01-08-2020, 10:23 PM #3440bogusbill
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01-09-2020, 08:26 AM #3441Registered User
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- May 2017
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- Zurich, Switzerland
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quick question:
I'm in the process of mounting some Dynafit TLT Radical (I guess, at leat they match this template https://drive.google.com/file/d/1ufm...c4h2RAihK/view)
-> after mounting: how much space do I leave between metal peace of the boot heal an the "head" of the binder? Or what diameter can I use instead of the official adjustment stick? (referring to this page 5: http://lequeyrassin.free.fr/TLT/Dyna...%20montage.pdf)
Thanks a lot!
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01-09-2020, 08:40 AM #3442
^ 5.5mm
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01-09-2020, 09:17 AM #3443Registered User
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thats ^^ like 3 nickles eh
Lee Lau - xxx-er is the laziest Asian canuck I know
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01-09-2020, 09:23 AM #3444
Canadian nickel 1.76mm x 3 = 5.28mm
American nickel 1.95mm x 3 = 5.85mm
American quarter 1.75mm x 3 = 5.25mm
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01-09-2020, 09:26 AM #3445
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01-09-2020, 09:41 AM #3446
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01-09-2020, 10:01 AM #3447Registered User
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if its really that important buddy should have a proper gauge but really 3 nickles is probably close enough
Lee Lau - xxx-er is the laziest Asian canuck I know
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01-09-2020, 10:09 AM #3448
I use the back end of drill bits for this job. Adjust to just fit a 5.5 mm, verify with 5.0 (loose fit) and 6.0 (no go).
I'm sure there are matching murrican non metric bits that would fit the same purpose.
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01-09-2020, 10:38 AM #3449
5mm hex key with ski flattened on bench works. I recall reading somewhere that Dynafit's spec is +/- 0.5mm
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01-09-2020, 12:10 PM #3450Registered User
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- May 2017
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- Zurich, Switzerland
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thank you - I think I will go for the drill bits.
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