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Main Boards => The Bowyer's Bench => Topic started by: Dano on October 16, 2009, 03:42:00 PM

Title: Knot scraper
Post by: Dano on October 16, 2009, 03:42:00 PM
Just in case somebody hasn't seen one of these, here's some pictures. I made this out of an old 3/16 allen wrench, just heated with a propane torch and pound the short end flat and grinded an edge on it. These are pretty handy for pin knots and big ol knots as well. I turned a handle out of osage, I was bored today    :rolleyes:   but any hunk of wood will make a handle. I can't take credit for this idea other than the allan wrench. Cody Cantrell gave me one similar a few years back and it has been a great tool.

 (http://img.photobucket.com/albums/v199/dlgren/knotscraper017.jpg)
 (http://img.photobucket.com/albums/v199/dlgren/knotscraper018.jpg)
 (http://img.photobucket.com/albums/v199/dlgren/knotscraper019.jpg)
 (http://img.photobucket.com/albums/v199/dlgren/knotscraper020.jpg)
Title: Re: Knot scraper
Post by: Eric Krewson on October 16, 2009, 04:22:00 PM
Concrete nails work really well for making these scrapers. I had a tutorial on making them here several years ago but it has disappeared.

I put some fancy gizmos and scrapers on the St Jude auction, they went well.

(http://img.photobucket.com/albums/v181/ekrewson/scrapergizmo.jpg)
Title: Re: Knot scraper
Post by: Dano on October 16, 2009, 04:31:00 PM
I thought I'd seen someone else make these, thanks Eric, I wish the tutorial was still around, that would be helpful.
Title: Re: Knot scraper
Post by: scrub-buster on October 16, 2009, 06:17:00 PM
Great ideas.  Now I got another tool to make.
Title: Re: Knot scraper
Post by: Eric Krewson on October 16, 2009, 07:12:00 PM
I use this type of concrete nails for scrapers.

(http://img.photobucket.com/albums/v181/ekrewson/bow%20making/100_0677.jpg)

Heat it up to red hot and pound the big end flat.

(http://img.photobucket.com/albums/v181/ekrewson/bow%20making/100_0678.jpg)

(http://img.photobucket.com/albums/v181/ekrewson/bow%20making/100_0679.jpg)
Title: Re: Knot scraper
Post by: Eric Krewson on October 16, 2009, 07:16:00 PM
Shape the flat end to a screwdriver shape with a file.

(http://img.photobucket.com/albums/v181/ekrewson/bow%20making/100_0683.jpg)

Finish shaping and sharpening on a course stone.

(http://img.photobucket.com/albums/v181/ekrewson/bow%20making/100_0684.jpg)
Title: Re: Knot scraper
Post by: broketooth on October 16, 2009, 07:19:00 PM
i got handfuls of those concrete cut nails . i'll have to make me one of those. very cool and inovative idea  :thumbsup:
Title: Re: Knot scraper
Post by: Eric Krewson on October 16, 2009, 07:23:00 PM
You don't want to take your scraper to a knife edge just yet because the steel is soft, brittle and will break off.

Heat the scraper up again and bend the crook in it.

 (http://img.photobucket.com/albums/v181/ekrewson/bow%20making/100_0685.jpg)

After you get the crook in it, heat it one more time and quench it in oil or water to harden it.

(http://img.photobucket.com/albums/v181/ekrewson/bow%20making/100_0686.jpg)

Do you final polishing and sharpening after you harden the scraper, add a handle an you will have a very useful tool.

 (http://img.photobucket.com/albums/v181/ekrewson/bow%20making/100_0687.jpg)
Title: Re: Knot scraper
Post by: Dano on October 16, 2009, 08:00:00 PM
There ya have it, thanks Eric. I like to scrape a knot from back of the bow up the knot, but sometimes you may need to go the other way, just gotta follow the ring and leave the knot proud. I recently ran into a few knots where the ring was concave around the knot, so after chasing it you had a valley around the knot, those are a challenge. All good fun tho.
Title: Re: Knot scraper
Post by: Ricker on October 16, 2009, 11:21:00 PM
Dang it Dano, not only a master bow maker but a blacksmith too...
Great idea. I think I'll make one up today.