How To Sharpen & Use Card Scrapers (The Ultimate Guide)

แชร์
ฝัง
  • เผยแพร่เมื่อ 7 พ.ย. 2024

ความคิดเห็น • 60

  • @ttlangley
    @ttlangley 3 ปีที่แล้ว +3

    Tom is great!! If you're not a member of The Art of Lutherie, you're really missing out! He has taken my building to whole new level.

  • @musamor75
    @musamor75 ปีที่แล้ว +4

    Hello there,
    I'm only half way into your excellent and most informative video, but as a 64 year old cabinet maker, having held my first scraper at the age of 13 (I didn't start the trade until much, much later), I would like to share my personal approach on a couple of matters: filing and honing.
    1) No matter what, one should NEVER pull a file. It should ALWAYS be lifted on the pull stroke. Why? Because the simple pull motion is exactly what wears files out. Take a jeweller's magnifying lens and you'll see that files have TEETH- V-shaped exactly. The cutting face is usually perpendicular to the flat surface of the file's corpus (body). The apex, which is the sharp tip or point of each tooth is severely damaged when pulling; it's only meant to work on the push stroke. So, the proper motion would be: push, lift, push, lift, and so on.
    2) Personally, while sharpening, I tend to use the side of the stone for sharpening the edge of the scraper, because the extremely thin cutting edge WILL put score marks and ruin the flatness of the large surface (unless you "slide" it diagonally). Stones should be maintained flat constantly- just like the Japanese Masters do (except they only use water stones). For hard oilstones you can use Carborundum powder- this is simply Aluminum Oxide, sold in different grains. Clean the stone thoroughly of all oil, and sprinkle the afore-mentioned powder (80, 120, 320 etc. grit) with water on a thick plate of glass and place your oilstone on this and use different strokes- back and forth and figure eights and so on, until the stone "sucks" the surface. When this is done, your stone is FLAT- ready to use again. Cabinet makers like flat surfaces!
    I'm slowly quitting oilstones (except for scrapers) for Japanese water stones, so much quicker, cleaner, and much more precise.
    May I suggest you use 50% petrol (gasoline in the US) with your oil. We used this recipe in Paris France; it speeds up the process no end, and "unclogs" the stone- easier to clean each time.
    Oops , I'd better get back to the video. I hope my comments may be of some use to you and others. In the meantime I'd like to congratulate you on your excellent exposé of the wonderful world of scrapers (these lovely little "planes"). Great video and wonderful, kind gentleman.
    Greetings from France.
    P.S. I'm lucky to own, and use, a fantastic German Ulmia burnisher. It's full sized tool, almost like a plane, with a rabbet all along the length, and a hardened steel wheel in the centre. You run the scraper along the fence, and out comes a phenomenal edge that will produce plane shavings if desired! I have about 40 scrapers, plus several shaped blades for making mouldings using homemade scratch stocks (very ancient technique). Otherwise a file-shaped burnisher, also German.

  • @buzzpatch2294
    @buzzpatch2294 ปีที่แล้ว +5

    i was looking to find out about card scrappers-
    the different types and how maintain and to use them
    i learned more from you in 30 mins than i have in a month of studying about them-
    you are a great teacher- your presentation & knowledge along with your personality made this a VERY pleasant and informative experience
    with much appreciation- thank you

    • @TheArtOfLutherie
      @TheArtOfLutherie  ปีที่แล้ว

      So glad to hear it was helpful, thanks so much for sharing that! :)

  • @radiusnorth1675
    @radiusnorth1675 2 ปีที่แล้ว +9

    Hello, thanks for your video and the work you put into them. I would like to add 2 points: 1) that the material for the burnisher has to be harder than the card scrapers which can be "had' in hardnesses that vary between 38 Rockwell C, for inexpensive spring steel cards, to Rc 52 for "hard" card scrapers. So the shaft of an old screw driver may not work, at least not very well. 2) it can be helpful to ease the corners of the cards (which rarely if ever come into play) A little inattention using the scraper on a surface can cause a dig at the corner and PRESTO you're having a bad day!

    • @TheArtOfLutherie
      @TheArtOfLutherie  2 ปีที่แล้ว +3

      Thanks! I learned the radius the corners point you mentioned the hard way, definitely makes for a bad day if that happens, so it's important to take a little time and ease them like you mentioned, great point! :)

  • @rolandharrison5651
    @rolandharrison5651 6 หลายเดือนก่อน

    Excellent job describing and demonstrating techniques. I found it very soothing. Thanks!

  • @monday6524
    @monday6524 3 หลายเดือนก่อน +1

    Very helpful!

  • @damianainscough
    @damianainscough ปีที่แล้ว +1

    Really useful reminder, thanks.

  • @genekatauskas6904
    @genekatauskas6904 ปีที่แล้ว

    Dude, you are a lutherier, you do you. Who cares what others do 🔨🔨🔨

  • @johnterdik4707
    @johnterdik4707 ปีที่แล้ว

    Great video!!! The details of the why were excellent for me. Now I have a much better understanding and appreciation for scrapers.

  • @acostaguill
    @acostaguill ปีที่แล้ว

    Very insightful, sir, and very enjoyable. Thanks for taking the time to put together a great video sharing your knowledge.

  • @steveparr6940
    @steveparr6940 ปีที่แล้ว

    Great explanation of sharpening and using card scrapers. I’ve struggled getting mine sharpened, mainly not getting the knowledge needed. Thanks

  • @chrispokorney6801
    @chrispokorney6801 ปีที่แล้ว +1

    Very Informative Video. Great Job . Thanks

  • @rsmart4359
    @rsmart4359 3 ปีที่แล้ว +1

    So helpful! I've used my scrapers a couple times, so this was perfect for me. Now I know what I can do better next time! Thank you!

    • @TheArtOfLutherie
      @TheArtOfLutherie  3 ปีที่แล้ว +1

      So glad to hear it was helpful! It takes a little practice but it’s worth the effort for sure.

  • @MrTewhare
    @MrTewhare 2 ปีที่แล้ว

    great energy mate I am on my guitar building journey any tip and trick is a great help almost feels like cheating

  • @musamor75
    @musamor75 ปีที่แล้ว

    Great video my friend. I could go on for hours, but won't. There are many schools of sharpening and use. You have done a fine job here, and I'm sure your finished guitars are wonderful works of art. Take good care. God bless.
    Greetings from France.

  • @robertnewell5057
    @robertnewell5057 3 ปีที่แล้ว +1

    A great video, Tom! As always, you show great skill without being condescending, and always say yours is just ONE way. This is always reassuring. For myself, although I use a lot of power tools, I always come back to the card scraper in the end of almost every process.Learning how to sharpen and use one literally changed my woodworking life.

    • @TheArtOfLutherie
      @TheArtOfLutherie  3 ปีที่แล้ว

      Thanks so much Robert! So glad you enjoyed it!

  • @scottricks1676
    @scottricks1676 5 หลายเดือนก่อน

    Awesome video!! Thank you.

  • @51punk
    @51punk 3 ปีที่แล้ว

    I love using those Stewmac Ultimate scrapers! Great video Tom

  • @78dwk
    @78dwk ปีที่แล้ว +1

    This is a huge help, Thanks Godbless

  • @153ixthys
    @153ixthys 2 ปีที่แล้ว +1

    Many, many thanks!

  • @helixthecatinthehat
    @helixthecatinthehat ปีที่แล้ว

    Can't remember the last time I watched a 35 min. instructional video in one sitting. And it was about card scrapers....

  • @richardstumph7833
    @richardstumph7833 ปีที่แล้ว

    Thank you for sharing, violin makers use them ,,❤

  • @justinmerrill3659
    @justinmerrill3659 3 ปีที่แล้ว +2

    Thanks for all the details. I just started using scrapers so it's super helpful to see how to use the burnisher correctly.
    I was wondering, do you use the french curve style scrapers and (if so) is your technique for sharpening them any different from the straight or curved ones that you demonstrated?

    • @TheArtOfLutherie
      @TheArtOfLutherie  3 ปีที่แล้ว +1

      Hi Justin, glad it was helpful! I don't use the French curve or gooseneck scrapers as much anymore, but when I do, I use the same method for sharpening those as well. You have to rotate it a few times to roll out that bur all the way around the curves.

  • @LadyCroMag
    @LadyCroMag 3 ปีที่แล้ว

    Excellent scraper knowledge!!! Thank you!!!

  • @TheBinaryWolf
    @TheBinaryWolf 2 ปีที่แล้ว

    Thank you for sharing your expertise. What about sharpening a scraper for flattening coats of shellac? If the edge is not perfectly 90 degrees, scraping leaves unwanted grooves, fine but visible.
    I do not like sanding between coats when French polishing: shellac if soooo hard. Scraping with a utility razor blade works well, but I would like to use my 4" scraper. Do you have a technique for sharpening a scaper for shellac surfaces?

  • @davefligg8788
    @davefligg8788 ปีที่แล้ว

    Thanks. Great video. Great format.

    • @TheArtOfLutherie
      @TheArtOfLutherie  ปีที่แล้ว

      Thanks Dave! So glad to hear it was helpful and that you liked the format. I'm thinking about making some more videos like this about other tools and topics, so your feedback helps.

  • @51punk
    @51punk 3 ปีที่แล้ว +1

    If you could make a video about how you sharpen gouges, that would be great. I’ve always struggled with getting a great edge on those

    • @urmelausdemeis3495
      @urmelausdemeis3495 9 หลายเดือนก่อน

      Ðas würde mich auch interessieren

  • @alandust2188
    @alandust2188 ปีที่แล้ว

    Great Video....THANKS!

    • @TheArtOfLutherie
      @TheArtOfLutherie  ปีที่แล้ว +1

      Hey Alan, glad it was helpful! Hope you're doing well!

  • @Ukenick
    @Ukenick ปีที่แล้ว

    Great video. Thank you

  • @Drew-de7ey
    @Drew-de7ey 11 หลายเดือนก่อน

    This is awesome!

  • @arturobinewski9769
    @arturobinewski9769 ปีที่แล้ว

    Thanks for the excellent video. What would be your recommended scraper for fitting a bridge to a mandolin or archtop guitar?

    • @TheArtOfLutherie
      @TheArtOfLutherie  ปีที่แล้ว

      I use a scraper for parts of the fitting process, but I do the final fit with sandpaper because it allows me to get a more precise fit.

  • @alandust2188
    @alandust2188 3 ปีที่แล้ว

    Absolutely a great video, thanks so much!

  • @alkssmith9762
    @alkssmith9762 3 ปีที่แล้ว

    Wonderful, thanks!

  • @mentalswill
    @mentalswill ปีที่แล้ว

    The green vise - what brand is it?

    • @TheArtOfLutherie
      @TheArtOfLutherie  ปีที่แล้ว +1

      Hi @mentalswill, It's a pattern maker's vise, but I can't remember the brand name, but you can find the info and link to it (and many of the other tools I use and recommend) in my Luthier Tool guide here: theartoflutherie.com/luthier-tools/

    • @mentalswill
      @mentalswill ปีที่แล้ว

      @@TheArtOfLutherie thanks

    • @contessa.adella
      @contessa.adella ปีที่แล้ว

      And why do have toast in the jaws…

  • @roylanes7287
    @roylanes7287 3 ปีที่แล้ว

    Never played guitar. Never made a guitar. Don’t listen to much music with guitars (as far as I’m aware)
    Why is this so interesting to me???

    • @MoGiMaL
      @MoGiMaL 2 ปีที่แล้ว

      Maybe because humans have evolved using tools for the last couple hundred thousand years! Find something in your life that needs scraping!

  • @michaelduddy4119
    @michaelduddy4119 ปีที่แล้ว

    Good video. Could have been a little bit shorter?

  • @erics7712
    @erics7712 ปีที่แล้ว +2

    Please take this criticism with a grain of salt. All of this information has been published for decades. Tage Frid wrote books on this subject 50 years ago, and fine woodworking has published dozens of articles on the use, care and sharpening of scrapers. I also believe that the hundreds of dozens of graduates from woodworking schools have taught their share as well. I find it quite bothersome to watch people portray themselves as having discovered this on your own. This one of the most basic skills a woodworker can acquire. I would be nice to see people acknowledge the founding fathers of woodworking journalism and education that came before TH-cam.

    • @fgjhham89
      @fgjhham89 5 หลายเดือนก่อน

      Fair point! Accreditation and citing sources are really important.

  • @alandust2188
    @alandust2188 3 ปีที่แล้ว

    Absolutely a great video, thanks so much!