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Kuzmin Ski Technology AB

XRiller

XRiller

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YouTube

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XRiller makes crisscross pattern

After three years of development Kuzmin Ski Technology AB is proud to present a novel product – XRiller.

XRiller is an item, which round off our ski running surface (SRS) tuning line. Now we have all tools to modify SRS roughness to any directions.

The XRiller is a kind of manual structure imprint tool. XRiller’s distinctive characteristics:

  1. It is not a cutting tool, it is a knurling tool;
  2. The XRiller’s edge is sharper, than edges of other similar knurling ski tools;
  3. The XRiller’s helical knifes thread pitch is much wider, than thread pitch edges of other similar knurling ski tools;
  4. XRiller’s helical blades have different thread pitches, different thread directions and different diameters. All this creates an irregularly crossed pattern;
  5. Because of the helical knifes sharpness and the thread pitch wide the XRiller creates quite high unit pressure on the processed SRS. Much higher than other similar knurling tools, which employed standard metric or inch screw-thread;
  6. By the high unit pressure the XRiller makes clearly visible imprint on the processed SRS;
  7. We can heat the XRiller (maximum to 170 °C), to make even deeper imprint;

Our own experience and theoretical reasoning cannot show any clear advantage (often no advantage at all) of structural tool that leaves several short longitudinal streaks behind. Such a pattern may be called "X-structure", "V-structure, "fishbone structure", and etc., but it is the same short longitudinal lines. Please, check:
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General strategy

For the cold dry weather conditions we apply the XRiller with a moderate pressure and quite short passes over the entire SRS. If by too hard pressure we got projecting edges on the crisscross pattern, just use Kuzmin™ scraper (1-2 dainty passes) to take the projecting edges away.

Fine 01

Fine 02

For the wet snow conditions we heat the XRiller up to 140-150 °C and with significant pressure and quite short passes apply the XRiller and over the entire SRS.

Heating 01

Heating 02

Coarse 01

Coarse 02

All other weather and snow conditions require some interpolation of the above two strategies.

Approach

  1. For cold dry snow conditioners non-parallel (between parallel and transverse) structure is advantageous (http://www.diva-portal.org/smash/get/diva2:319312/FULLTEXT01.pdf pages 19, 29);
  2. Probably, almost transverse structure will work even better under cold dry snow conditioners, but technically it is difficult to create real fine such structures;
  3. With a few rounds with light/moderate pressure (http://youtu.be/czp8jKUSfz0) we create structures for cold dry snow conditioners;
  4. From the aeration point of view (http://www.diva-portal.org/smash/get/diva2:319312/FULLTEXT01.pdf pages 27, 29), the deep XRiller’s structure work very well for wet snow;
  5. With moderate/severe pressure with hot XRiller (http://youtu.be/czp8jKUSfz0), we create real deep X-structures for wet snow;
  6. XRiller’s helical blades have different thread pitches, different thread directions and different diameters. All this creates an irregularly crossed pattern. Several relative short move, and few/several rounds contribute to even higher irregularity (randomicity). The structure irregularity always contributes to a better glide (http://www.diva-portal.org/smash/get/diva2:319312/FULLTEXT01.pdf pages 20, 29);
  7. Our own experience and theoretical reasoning cannot show any clear advantage (often no advantage at all) of structural tool that leaves several short longitudinal streaks behind. Such a pattern may be called "X-structure", "V-structure, "fishbone structure", and etc., but it is the same short longitudinal lines (https://www.facebook.com/photo.php?fbid=523800034354409&set=a.197446770323072.46490.177000155701067);
  8. We tested XRiller under quite cold weather, for wet dirty snow in April, for many other conditions. But we cannot test XRiller for all possible weather conditions, as their number is infinite. Thanks to XRiller one becomes his own structure designer. By varying the helical knifes temperature, pressure and number of rounds you can create the most optimal pattern;
XRiller is truly universal tool. It enables the possibility to produce the most optimal pattern for all possible snow conditions. Just go ahead by trial and error;

 

XRiller and ski