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 Post subject: Grooves in pins?
PostPosted: Wed Feb 04, 2009 3:58 pm 
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Joined: Thu Oct 12, 2006 3:53 pm
Posts: 209
Location: Los Angeles
I've noticed grooves in my pins where they interface with the touring bracket, and the brackets holes are out of round. This groove has caused some slop in the binding while in tour mode. I'm replacing the brackets and pins with new to solve the problem, but is this normal? I've got 9 days on new spark r&d pins. I've used the pins on 2 different boards(both boards brackets holes are out of round slightly). My old voile pins have 2 seasons on them and hardly show any ware at all. Should I have to change the bracket to maintain my pins in the future? Is their an issue with the spark pin? Has anyone else had this problem? :scratch:


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 Post subject: Re: Grooves in pins?
PostPosted: Wed Feb 04, 2009 5:19 pm 
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Joined: Tue Dec 12, 2006 4:36 pm
Posts: 382
Location: Lethbridge, AB
I have the same grooves on my pins with about 30 days on sparks this season. I just had 2 of the 3 screws shear off the one bracket. I'm not sure if the two are related? The play in the pins might provide more opportunity for momentum to build and increase the stress on the screws?

Image

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 Post subject: Re: Grooves in pins?
PostPosted: Wed Feb 04, 2009 6:15 pm 
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Joined: Wed Oct 06, 2004 10:57 pm
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Location: California
I don't think the groves are that big of a deal but I could be wrong. Also, the touring brackets are known to bore out a little over time. Seems like you shouldn't be having that happen this soon though.

I wonder how anodized aluminum touring brackets would work over the stainless steel ones?

Thoughts?

Crazy pic and damage treepilot. I haven't seen that one before or experienced it myself. Sounds like BGnight sheered a screw recently too.


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 Post subject: Re: Grooves in pins?
PostPosted: Wed Feb 04, 2009 6:23 pm 
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Joined: Wed Mar 09, 2005 4:15 pm
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Location: san diego CA
Do all of you have the same model? I have the first generation and dont have any groves , slop or broken screws ???


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 Post subject: Re: Grooves in pins?
PostPosted: Wed Feb 04, 2009 7:04 pm 
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Joined: Thu Oct 12, 2006 3:53 pm
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Location: Los Angeles
I have 2nd gen. I'll be keeping a close eye on the new ones.

Aluminum is pretty soft, may not hold up to all the stress.

Treepilot, I've noticed when dropping in mr. chomps on the fly if I don't cleanly and squarely drop them in and start lowering my foot it torques the bracket. This could add stress to the screws. Have you been using them?


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 Post subject: Re: Grooves in pins?
PostPosted: Thu Feb 05, 2009 4:33 am 
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Location: Lethbridge, AB
Used them once last spring right after I got them. Didn't bring them to Japan, but in hindsight I should have!

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 Post subject: Re: Grooves in pins?
PostPosted: Thu Feb 05, 2009 9:17 am 
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Joined: Wed Feb 08, 2006 12:16 pm
Posts: 391
Location: Bozeman MT
Hey guys,
I've only had a few reports of the groove problem, part of it seems to be touring brackets that are getting worn out or have a burr in them. If the brackets are out of round it's probably time for a new set, and if your pins are grooved send me a pic (will@sparkrandd.com). We'll send you out some new ones.

Treepilot, did you go over the bars hard when you sheared those screws off? You might be able to get the busted screws out with a screw extractor from the hardware store, here's a link on those if you haven't seen one before: http://homerepair.about.com/od/interiorhomerepair/ss/screw_extractor.htm.

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 Post subject: Re: Grooves in pins?
PostPosted: Thu Feb 05, 2009 10:07 am 
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Joined: Thu Nov 11, 2004 12:55 pm
Posts: 925
Location: socal
Anodizing really doesn't add much durability, it does prevent some oxidizing but rubbing in the tour bracket will easily scratch any anodizing off after a day of touring. An aluminum pin would possibly shear off, especially once it got these infamous grooves in them.

The tour bracket is just stamped, I feel Will is correct w/ the burr on there, mine had some. If it's sharp, it will groove even into the steel pin, there are several grades of steel as well. After the pins are bent to positioning is it possible to heat treat them to a harder Rockwell?

Take a small round file or some sandpaper and nick off/smooth out any sharps on the tour bracket.

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 Post subject: Re: Grooves in pins?
PostPosted: Thu Feb 05, 2009 10:32 am 
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Joined: Wed Oct 06, 2004 10:57 pm
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Location: California
Wasn't thinking the anodizing would add much extra durability as I was just using a similar grade as what is used in Sparks as a reference. The current Voile touring brackets are stamped steel, correct? Or are they stamped aluminum? Pardon my ignorance but which one is stronger? I've always felt they were a little on the flimsy side and prone to bending and boring out. If they are steel then I guess one benefit is that if they do bend you can bend them back without breaking them, whereas if you bend back aluminum it typically breaks, correct?

The old Burton brackets had a plastic reinforcement that sat over the metal piece to protect it and expose less of the metal (only the holes for the pins). I wonder if something like this would add durability to the Voile brackets?


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 Post subject: Re: Grooves in pins?
PostPosted: Thu Feb 05, 2009 11:11 am 
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Joined: Mon Jan 16, 2006 8:59 am
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bcrider wrote:
The old Burton brackets had a plastic reinforcement that sat over the metal piece to protect it and expose less of the metal (only the holes for the pins). I wonder if something like this would add durability to the Voile brackets?


Or could you make a touring bracket out of a solid piece of UHMW? This may interfere with the Mr. Chomps though. I can't say for sure since I don't have a pair.

I also find the metal tabs to be a bit flimsy and I find that they bend inwards a small amount and this allows for little bit of side to side play in tour mode. Not a huge deal though. A reinforced or solid toe piece would prevent this.


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 Post subject: Re: Grooves in pins?
PostPosted: Thu Feb 05, 2009 11:16 am 
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Joined: Thu Nov 18, 2004 5:07 am
Posts: 620
Location: Montana
Anyone checked with Voile to see if maybe they changed metal suppliers for the brackets? Perhaps a harder steel in use vs. before? Like Tex I have the 1st generation Sparks & no grooves or slop yet & a lot more than 30 days. Or maybe its just a burr issue with the stamping process which a file or sanding could probably cure.

Steel > Aluminum in hardness which is what would cause wear.

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 Post subject: Re: Grooves in pins?
PostPosted: Fri Feb 06, 2009 12:45 am 
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Joined: Tue Dec 12, 2006 4:36 pm
Posts: 382
Location: Lethbridge, AB
Will wrote:
Hey guys,
Treepilot, did you go over the bars hard when you sheared those screws off? You might be able to get the busted screws out with a screw extractor from the hardware store, here's a link on those if you haven't seen one before: http://homerepair.about.com/od/interiorhomerepair/ss/screw_extractor.htm.


Negative. Was breaking trail on a side hill in variable snow. Moving the downhill leg up when my ski no longer aligned with the binding. Zero tools here in Japan. The recommended shop is taking 2 days (and counting) to repair.

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http://www.splitboarders.ca


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