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The results are great, but I wondered if anyone had opinions on the ski wax services you can usually purchase for $5 at the resorts. It seems like a good deal, is there a particular reason why I shouldn't do this? Thanks.
But - on the other hand - I have heard plenty of good things about those quicky tunes from the same locations.
My point is - buyer beware. If you do this - I'd be sure to keep a pocket diamond file on you to de-tune your tips & tails if necessary.
[This message has been edited by jimmer (edited 01-06-2004).]
How often would be reasonable for one of these tunes? I have only been skiing a few times this year, but the last time I got a few scrapes on the bottom from thin cover. I am going on a trip to NH in Feb and figured the next time I go skiing in this area I would have them done so they would be ready for NH.
I don't know of anything you could do to test this theory except to have your edges sharpened razor sharp tip to tail & take them for a spin. You'll notice this more in the softer snow than on the harder "packed powder" found on other days... 
Then - you get to be more picky on your wax choices instead of the cheap stuff used by the shops.
AS FOR WAXING -- I wax my own skis. I use the generic temp block wax (also from reliable racing), and melt the stuff onto a hot iron (kmart) and drip it onto my bases. I then rub the wax spots down in a circular motion with just enough heat to melt the stuff good without smoking or burning. This work fine as far as I can tell, then I let it dry and use a plastic straightedge to clear away the excess. Then I BUFF it a bit...
FOR MOST snow conditions this produces a noticable gliddy effect. However if it is QUITE cold and if the snow is dry my skis squeak when moving in say the lift line. I have been told this is a sure sign the wax is the "wrong" temp... Also I'm suspicious in wet & sloppy snow I could have a better 'wet' rated wax on there too. For me, I live too far, and I am simply too lazy to do this slope side early AM. It's not worth it to me. BUT it might be worth it to try a rub on wax overtop my base "general temp" wax slopeside to better match the conditions. I may try this next year. Other than that for the non-racer that's not after a second here and there, it seems that a good general temp wax every couple of times you go is both easy to do, convenient time wise, and more or less produces slidier skis. Ok, well, thanks for reading this rather longwinded post!
I have also been told that you shouldn't do the bottoms as often as the sides.
Does your iron have steam holes in it?
http://www.zardoznotwax.com/html/welcome.html
Anyway, as for wax, I was thinking of trying that NOTWAX teflon stuff which should not care about temp much at all Id think. Claims you can put it right over wax, so I'd probably put down my base wax as a protector and then apply the not-wax. The not-wax folks say its good for 15 applications... so maybe i'll get 2 cans and give it a try. As for my iron, yes, it's a regular household iron. It has steam holes. I bought it at Kmart for ... I dunno, it was the cheapest one. I only use it for waxing. The wax doesn't seem to get into the holes though and I keep the setting such that the wax doesn't smoke which seems enough to liquify and cover well using a circular motion to spread it out. I have used a regular ski wax iron too, seemed ok also. After it cools I removed the excess but scraping a plastic straight edge down the length of the skis.
The diamond stones take material off _very_ fast, so I generally only make 10 passes with each stone in the series. One of the tricks to make them work is to use a cutting fluid on the stone. The stone mfgs recommend water; I've used blue Windex and isopropanol with more success, specifically to avoid edge rusting. Spread it onto the stone with a toothbrush, cleaning it once every 3-4 strokes. You will be _amazed_ at how much material actually comes off.
The Zardoz stuff _is_ temp dependent, but much more humidity dependent. LF6 is GREAT for fresh snow around here; I use LFG6 for graphite bases- do, however, keep in mind that a fluorinated base will not accept regular wax as readily! It is good to have the Zardoz cleaner along with the Zardoz puck, for example.
I have 4 tubes and a handheld plastic container of c.a. 1980 Toko sponge wax, and I can't wait for one of the county's hazmat collection days.
One advantage of stones to files is that they do not leave burrs- no need to Arkansas or gummi stone the edge before waxing.
As to rec skiers sharpening too much- well, if you rely on hard edge sets to control speed then it is likely you will dull your edges faster too.
Ok.
EVERYONE WHO IS DETUNING THE TIPS AND TAILS OF THEIR SIDECUT SKIS, try this instead:
Using -light- pressure, set your Arkansas stone (oiled, remember?) or gummi against the edge and parallel to it. Using -light- pressure, run it along the entire edge, holding the stone parallel to the edge. Make 2 passes on the base and 2 on the side for each edge.
The idea behind this is to knock down or remove the burr created by filing or high-speed grinding. You are not trying to actually sharpen the edge, merely remove a flexible bit of metal hanging off of it like a hangnail. Detuning the tips and tails only removes the front and rear sections of the burr, leaving that "quickie tune" feeling squirelly.
Good idea on the lubricants I think, although I'd never of thought of anything except either water or maybe a light cutting oil perhaps...
I don't know of any wood planes that meet the above criteria, but if you want to experiment . ..
Drop me a line sometimes next season if you haven't solved that pesky edge prob. Drop me a line sooner if you have friends with Lie-Nielsen #6 or larger scrub planes also willing to let you borrow them . ..
USING OIL ON DMT AND SIMILAR STONES WILL BUILD UP A GLAZE AND RENDER THEM USELESS.
A skyver tool is not indicated for this, more a stonegrind (or a pansar file, if you're adventurous).
http://www.fktools-us.com/
Tognar base tool is the one I would prefer to use to get this correct. (Absent a good stonegrind, that is). What this will do is knock the bases down to a median between the edges.
Cheapskate solution #1:
Buy a 10" long pansar file and a piece of steel threaded pipe of the same length. Duct tape the pipe to one side of the file, and use the opposite side to file the base down, keeping both hands on the pipe.
Cheapskate solution #2:
Wrap 120-grit silicon carbide paper around rigid pipe, tape edges. Sand away, keeping both hands on pipe with even pressure. This will take longer than #1.
Unless you're getting a lot of edge burn, you shouldn't need to do this more than once a season.
Polish with Scotchbrite after either treatment. Proceed to set edge angle.
TO BE honest, thinking of planes, I have wondered if anyone had thought of using an electric PLANER type tool... remember these things from wood shop?
Here's a spiffy picture of one: http://www.mytoolstore.com/makita/mak03-06.html
Anyway, obviously it would not work out of the box, but that's the BASIC idea of what you *really* want I suppose (i think) ?
Problems I foresee, in increasing order of importance:
- It is a -thickness- planer. Skis generally aren't of uniform thickness, never mind the problem of negotiating bindings.
- The blades on these things are notoriously sensitive to hardened objects, as the folks who make and sell little magnetic probes to be used to find random nails and things in lumber know and rely on for a living. I believe your proposal would involve some edge contouring at least, and the moment a wood-chipping blade hits an edge. . .
- I do not believe the standard plane of reference should be at the topsheet of the ski at all. If you look at the Dynastar website, for example, at the Exclusive 8, you will see that the company intentionally offsets the topsheet with respect to the bases. (Internal ramp angle).
OTOH,
Let us consider the BOTTOM of the core as a standard plane of reference, though. Ideally, the base should be of a given thickness relative to this. The edges are fastened directly to this plane. They are the hardest thing on the ski. They therefore provide the best guide short of sonar, magnetic resonance or other non-destructive probing of where exactly the core is under all that black plastic.
So, short of all those probing methods, a median height between the edges is assumed to be reasonably parallel to the core. We then set the edges relative to that median.
Could this be substantially off? I suppose it could, if one edge was -substantially- and -consistently- (tip to tail). higher than the other.
What, then, is the prime mechanism making sure neither we nor the shop unwittingly build in 1-3 degrees of cant (tilt in the roll plane), wreaking havoc on our knees and hips?
I don't know- haven't thought about it, or the similar problem of misaligned binding bridges for stone grinding.
I suspect that the answer is in the "consistently" part. Since all our tools deal with only a little section of ski length at a time, we are more likely to notice mistakes as apparent "twist" in the result.
Imagine the place the foot/boot connects to the ski as a surface, let us call this the "foot plane"...
Now imagine the ski on a perfectly flat surface under load -- let's call the contact area (the bottom of the ski), the "bottom plane"...
Imagine these are idealized planes stretching out in all directions.
Now for the relationship between them:
Suppose then further that the ski forms a bearing marker relative to the planes. Let's call the ski pointing straight ahead as 0 degrees, and the invisible line perpendicular to this 90 degrees. And let's put that line in the middle of the binding area.
NOW in our model we DO allow the foot plane to rotate about the 90 degree line. This is OK, the two planes may not be parallel then along this line only. This would be the case if there were a heal wedge incorporated into the binding somehow, so that the foot plane would be rotated slightly "forward" about the 90 degree line.
On the other hand, we DO NOT ALLOW (or want) a rotation in any other line, except the 90 degree line.
This relationship is easiest to imagine if the two planes are in fact parallel and there's no heal lifting mechanism tilting one plane... if there is no rotation about that 90 degree line, we'd say the surfaces are parallel.
SO regardless of the rotation about the 90 degree line, ***We want the planes to maintain their position relative to each other ***
SO when tuning or flattening the bottom, if there is a discrepency in this we want to remove it, and if there isn't one, we don't want to put it in...
Phew... I think that says it?
Ok, the bottoms should be flat, without any twisting, rolling, canting or anything (not counting the built-in camber)...
And the ski should be consistent across its various dimensions and a relative to each other...
Because ski mfgs, binding mfgs, and bootfitters all might have their own say about this, I hesitate to say word one about a desirable relationship of the foot surface to the bases, at least from a tuning standpoint.
If you transpose your statements down to the plane of the bottom of the core, ideally the bottom-most non-PTEX part of the ski, I am more than happy to agree.



