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Thread: Problems with an edge tool (LONG) Reply to Thread
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  Topic Review (Newest First)
08-25-2011 10:04 AM
CheeseForSteeze If you can find a shop to run it through the Wintersteiger, it might be worth it. Most shops, if they offer a full tune package, should have a stone grinder for base tuning and edge tuning. Again, the shop needs to have competent operators who know how to set the feed and guides and maintain the machine because the machine is only going to as precise as its maintained and operated.
08-24-2011 11:54 AM
Originally Posted by CheeseForSteeze View Post
I haven't found many shops that have machine tuning, though. Depending on your local scene, you might be just as well off eyeballing a bastard file with no guide at all :/
Yeah, I figured that. Thanks also for the further explanation of the tool you recommended. I will probably give it a shot here soon.

And yes, I like the Sharpie method too. It's also what helped clue me into the "3 point contact" situation described in my OP (that along with ptex particles).
08-24-2011 11:22 AM
CheeseForSteeze I haven't found many shops that have machine tuning, though. Depending on your local scene, you might be just as well off eyeballing a bastard file with no guide at all :/
08-24-2011 11:15 AM
What tool/method does a snowboard shop use? Unless it's a prohibitively expensive tool/setup or an incredibly specialized/complicated skill
Originally Posted by CheeseForSteeze View Post
Ahh, so it's option number 1 then. Cool stuff, definitely probably more reliable than a minimum wage kid with a hand tool.
08-24-2011 11:09 AM
CheeseForSteeze Trimjet
08-24-2011 10:52 AM
Originally Posted by Snowolf View Post
Seriously? For $20 to $30 most shops will tune your edges and bevel both the base and side edge to your specifications and do a base grind adding texture using the machine which is always going to be waaaaaaay more precise and even than the best hand held file guide. I will use a hand tool to lightly sharpen the edge or remove nicks and burs but to actually tune it, I cough up the money at the start of the season and enjoy feeling like my board is new again.

You guys spend $500 on a board, yet wont spend 30 bucks to get this done right? I don`t get it.....
I am brand new to snowboarding, but when I was growing up I was way into BMX, and I learned very quickly that even for the most complex operations (truing or building wheels), the local shops often did a pretty poor job (and charged a lot for it). Sometimes it was a good job... but sometimes not. Notably, it was inconsistent. I spent hundreds of dollars on tools to be able to build and true my own wheels. I was destroying rims enough that it was actually worth it.

But it's not really about the money... more about the satisfaction of doing a job right, first-hand. You can easily spot an untrue wheel with your naked eye and ask for your money back. But can you easily spot an edge which is 1 angle more or less than what you asked for?

What tool/method does a snowboard shop use? Unless it's a prohibitively expensive tool/setup or an incredibly specialized/complicated skill, I see no reason not to do it myself. If there is indeed a problem with some mainstream tools as I believe I may have discovered (I will gladly be shown how I am wrong), then more reason to stay away from shops who may be using such tools.
08-24-2011 06:32 AM
Originally Posted by The111 View Post
Interesting. It's hard for me to visualize... but are you saying the bead lifts up the "base guide"... filling in the "gap" in my second image? In a perfect world this would solve the problem (as would shimming with tape or something else), but the real issue is how much do you shim? Or in this case, how much do you push the bead out? It's all happening at such a small scale you can't trust your eye. Too much shim (or adjustable bead) or not enough, and you don't solve the problem... you could even make it worse with way too much shim.

Or maybe I'm misunderstanding what the bead does.
In the product on amazon I linked, the bead is the brass object in the center of the guide. Basically, it's a round brass "bead" that is non concentrically mounted. It just as acts as a bearing surface on the base edge. Since the bead is non-concentrically mounted, as you rotate it, it lifts the guide so it files the base edge away at an increasing angle. The bead has several "snap" stops built into it so it stops at predetermined angles of rotation, each one corresponding to a different base edge angles (increments of 0.5, starting from 0.5 to 2.5 degrees). Basically, they've done the geometry for you and the once you snap the bead into 0.5 degrees, the bead will lift the guide to file the base edge at that angle.

Very good point. Until the base guide sits flush (and the edge step is completely cut out), you are cutting a smaller angle than you want, which leads to an acute "base-side angle" (assuming 90 degrees was your goal). I agree with your reasoning for obtuse being preferable... adding to those reasons that an acute angle is probably grabbier, in a bad way.
Some people do ride with an acute angle, say 2.0 base / 1.0 or 1.5 side edge to achieve an 89 or 89.5 degree edge angle. Based on my experience asking people about their setups, I've heard of angles all the way through 88.5 to 88.0 being used. From what I gather, you would not want such a corner angle if you are riding hardpack and aren't bombing big mountain deep powder. Even an 89.0 would be necessary only for real free riding. The effect of an acute corner angle is cumulative with the base edge being shallow as well (0.5 or even 0.0).

I prefer a 90.0, 90.5, so I would set 1.0/1.0 or maybe a 1.5/1.0. I've tuned old boards all the way to 2.0/1.5 and 2.5/2.0 and it gets a little sketchy on hardpack which is what most transitions and landings are coming off jib features in East Coast parks. It's incremental, but noticeable.

Still trying to figure out exactly how that tool works to solve my problems, but I am definitely open to buying a "base only" tool... even though I did invest $60 in my multi tool. And yes, 1.0/1.0 is my goal and I believe what my edges are already set at. I just want to do a very light filing at that setting to confirm it, and after that move to stones for the long run.
I take the approach that each deck is slightly different and handmade, the edges may not be set flush or matching angle to the base surface as other decks. I just tune it at increasing angles (base edge first, then side edge to keep it from exceeding a 90.5 or 91.0 corner edge) until I find a set that I like. I'm not so much worried about the edge sets angles in an absolute sense - I only care that I can deduce what the final corner angle is using the angles. If it happens that it's 2.5 degrees on the base an 2.0 degrees on the side edge feels right, then that's what I use. It doesn't bother me that I might have 0.5/0.0 on another deck. Even with a good set of vices, a steady hand and experience, setting an edge angle is more of a feel type excercise, than a precision machining one. This is why I tune my own edges and if I didn't, I would try to find one particular shop and use the same guy. I highly suggest using the "sharpie method" too - color the edge you are setting with a permanent marker and make sure you completely remove the surface.

Once I set my angle, I don't ever tune it again. I only use the file guides to take a light pass at the surface if it becomes extremely coarse. But I prefer just using a hard gummy stone because it is better at taking the coarseness away while minimally affecting the edge set. Note that I ride almost primarily freestyle and racers or alpine enthusiasts will find edge tuning and maintenance to be a much more painstaking task.
08-24-2011 06:00 AM
Originally Posted by The111 View Post
Guilty as charged.

Nice to hear somebody else was at least aware of this. The experts I've consulted so far have said the problem is non-existent. I don't think I'd trust myself to do it by hand like you are though. I guess once the edge is SET you can use diamond by hand for SHARPENING only, which it sounds like what you're doing. But I do want the extra assurance that I properly set my angles with a file, once, before starting all that... and that is what a base tool supposedly lets you do.
You're right, no "setting", only "sharpening" for me. I'm going with what the manufacturer claims for base and side edge bevel. Boy, will I be pissed if I find out they lied to me !
08-24-2011 02:13 AM
Ballistic color or blacken the metal edges before filing them. Then when u have filed off material its easier to immediately see and monitor your prrogress. It helps limit overfiling.
08-23-2011 09:55 PM
Originally Posted by BurtonAvenger View Post
Tape your base if you're that paranoid.
How much tape? Where?
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