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My homemade sidewall cutter

post #1 of 15
Thread Starter 

Here's how I made my own sidewall cutter.

 

I started with a piece of aluminum angle, filed and sanded smooth so it wouldn't scratch the ski base.  I cut a piece of plexiglas for use as an edge guide, with a half-moon cut out of it to provide access for the cutting bit to reach the sidewall.  As a cutter, I used a 1/8" lathe tool bit, held in a boring bar from my lathe.  I attached the boring bar holder to the rest of the device with a C clamp.

 

 

It's not as convenient to adjust as a commercial one, but it's workable.  To adjust the depth of cut, you loosen the setscrew in the end of the boring bar and slide the tool bit in or out.  To adjust how close to the base edge of the ski you want to cut the sidewall, you loosen the C clamp a bit and slide the boring bar up or down in the holder.  The holder has a slot cut down the length of it (you can't see it in the photo, it's on the back side) so that when you tighten the clamp, it grips the boring bar and prevents it from sliding or turning.

 

(To make a really nice one, I'd have to figure out a way to use micrometer screws for each of those adjustments.  But I was too lazy and this seemed good enough for me.)

 

I tried it on a pair of junked "sacrificial" skis and it seems to work quite well.  See the curl of sidewall that was cut off.

 

 

(In the picture below, the blue spring clamp is just there for the photo to keep the cutter from falling down.)

 

 

Ta-da!  Almost as good as the SVST one, and I didn't have to spend $200 biggrin.gif

 

Robert

post #2 of 15

Or if you don't have lathe tools to adapt, you could just use a file and file guide set to 5 or 6 degrees.

post #3 of 15
I've always just used a wood chisel.
post #4 of 15

Looks like a job for a router bevel bit. 

 

I don't understand why ski companies don't make the the ski with sidewalls beveled enough to accommodate popular tunes. th_dunno-1[1].gif

post #5 of 15
Quote:
Originally Posted by crgildart View Post

Looks like a job for a router bevel bit. 

 

I don't understand why ski companies don't make the the ski with sidewalls beveled enough to accommodate popular tunes. th_dunno-1[1].gif

I think they do make sidewalls for popular tunes ie 1/1 or 1/2, they just don't bevel them to accommodate race tunes.

post #6 of 15

Nice build ! I know a few Dad tuners that are metal workers, and they make their own vices, diamond stones etc.

post #7 of 15
Thread Starter 
Quote:
Originally Posted by Chenzo View PostNice build ! I know a few Dad tuners that are metal workers, and they make their own vices, diamond stones etc.

 

Thanks!  That's one of the things I like about skiing -- it provides a reason to make and use all kinds of fun gizmos smile.gif

post #8 of 15
Quote:
Originally Posted by DanoT View Post

I think they do make sidewalls for popular tunes ie 1/1 or 1/2, they just don't bevel them to accommodate race tunes.

 

But they could manufacture race skis designed for race tunes????

post #9 of 15
Quote:
Originally Posted by handhdad View Post

 

But they could manufacture race skis designed for race tunes????

Good point. Why don't SL or GS or DH skis come from the factory with sidewalls pre-shaved for more extreme race edge angles?

post #10 of 15
Quote:
Originally Posted by DanoT View Post

Good point. Why don't SL or GS or DH skis come from the factory with sidewalls pre-shaved for more extreme race edge angles?

Good question -

 

One reason I can think of is that it would increase the price.  Most, if not all laminate race skis need topsheet shaping as well, in addition to sidewall planing and finishing.  It would expensive to retool factory finish machines to accomodate the special needs of a race ski - so laminate race skis generally get the same treatment as non-race laminate skis in regards to t/s and s/w finishing.  

 

It is also a given that race stock skis are going to be hand prepped anyways - and race tuners would rather do their own version of  s/w and t/s finishing.

post #11 of 15

Brilliant design and execution, would love to make one too. Can you point me to some reasonable online sources for the ‘makings’ for my own? *(1/8" lathe tool bit, a boring bar, and perhaps the aluminum angle)

Thanks,  Bski.gifB

post #12 of 15

Since I don't own a lathe, I'd be much more tempted to plunk down $35 for an FK Sidewall Planer.  It has carbide, but it lacks the feeling of "I made it myself."  

post #13 of 15

Because if you buy a race ski most likely you are going to tune it yourself (your ski man) the way you like it, so they give you a blank platform to work with.
Also edges get eaten up, so even if the came "pre sidewall tuned" you'll still have to scrape it again after a while.
 

to the OP nice tool!

post #14 of 15

This is one I made. has some good qualities and some drawbacks. carbide is nice for when you hit the steel edge. I may be increasing the dado width to use a 1/2" chizel and be able to angle it as needed. the clamp is optional as the acrylic bar holds the chizel pretty well.

1000

post #15 of 15
Thread Starter 
Originally Posted by radesign View PostBrilliant design and execution, would love to make one too. Can you point me to some reasonable online sources for the ‘makings’ for my own? *(1/8" lathe tool bit, a boring bar, and perhaps the aluminum angle)

Thanks,  Bski.gifB


Hi -- Thanks for the compliment smile.gif  If you have to buy the supplies, It's not really worth making your own, as you can buy a ready-made sidewall planer in the $30-40 range too.  (See, for example, www.tognar.com or www.slidewright.com. )  I got the aluminum angle from www.princessauto.com about 20 years ago, but it comes in 8 foot lengths, so unless you need it for something else as well, it's not worth it.  I got the lathe stuff from www.busybeetools.com .  I made my own mainly for something to do and because I had the stuff lying around.  After using my homemade one for a while, I think the 1/8" lathe bit isn't really the greatest thing.  The circular carbide insert tool used in the commercial ones seems like it would be a lot better.

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