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Steel scraper mishap?

Posted: Mon Jan 11, 2016 7:29 am
by JeffOYB
I posted under 'base peeling gone bad' and no response. So does nobody use a steel scraper anymore? No experience with them even?

In short, will a cabinet scraper cause 'wartiness' in a base when using it to peel ptex down to a level surface?

Maybe I should be starting with sandpaper and finishing with the cabinet scraper...

I posted some pics in the other post.

Re: Steel scraper mishap?

Posted: Thu Jan 21, 2016 9:51 am
by Magnus Johansson
I would suggest starting with a steel scraper like Skigo's, Skimateria's or Kuzmin's.




Re: Steel scraper mishap?

Posted: Sun Feb 21, 2016 10:36 am
by m2qItMot
FWIF, I have been quite happy with Kuzmin scrapers for the last year or so. If you go that way, be aware that for flattening/dressing down the base you almost surely want to use the most aggressive "+" scrapers. The "regular" takes very little material and I can imagine that the "-" does even less.

Those scrapers are rather thick, I should say, so they stay flat and don't bend. I am not sure what exact kind of "cabinet scraper" you have in mind, but most general-purpose steel scrapers that I have seen are quite thin and flexible - on purpose, I believe, but not very good for what you want to do.

Also, the regular scrapers have have just a straight, square edge. The ones pointed to by Magnus are ground to have a much more aggressive edge, which not just bites into the bases more aggressively, but also allows you to keep the scrape at a much more oblique angle (as opposed to near-vertical). I believe that reduces harmful vibrations somewhat and generally allows one to make a much smoother and more controlled swipes.

Re: Steel scraper mishap?

Posted: Sun Feb 21, 2016 1:12 pm
by JeffOYB
My steel bar is heavy and about 5/8" x 4" x 6". I hope it's heavy enough that vibrations are minimized. I can tilt it and also angle it across the base so it does a slicing action. It seems to bring up material. I can work on improving its sharpness. I don't know how "surgical" the amount of fine sharpness is needed.

My bar doesn't seem to take off enough material to flatten a base, though. My bases are so convex that I end up using a couple sheets of 80 grit wet sandpaper > 150 > 220 to get them flat. Even then it takes about a half hour per ski with all the fussing. Then I peel it with the scraper for a final smoothing.

I've only flattened one pair to date. I have several more to do. Just doing that one pair resulted in me getting "cute" remarks from family upstairs. ..."That's a lot of time waxing and fussing with skis," blah blah.

They haven't seen anything! If I was actually ski racing, whew!

(A friend of mine got busted worse. He recently caught the base-prep bug and tragically spent 5 hrs at his waxing bench on Valentine's Day. Doh!)

I don't own a riller yet. I'm keeping my eye out for a secondhand one. ...I have held a file on edge and pulled it along a ski to put lines in the base. Then I scrub with green kitchen scrubby. etc