Scraping card burring guide.
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- This topic has 4 replies, 4 voices, and was last updated 6 years, 8 months ago by Max Pierson.
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6 March 2017 at 9:00 pm #309841
I’m not one of those lucky people that can sharpen a plane blade or chisel by hand. They always come out looking like a dull soup spoon when I’m done. So I have to use a guide. It works very well, but just takes a little longer to set the guide up, even with a templet for the angle.
For sharping a card scraper, the two places I have trouble is dong the initial flatting of the blade. The second was with putting on the burr edge. So I got to thinking how can I make a guide, as I am staring at my marking gauge. Idea!!!
I have two of the Tite Mark gauges, perfect. I took the first one and reversed the stop, then took the second one and put that stop on the first one. Flats back to back.
Now I just slide my card into the slot, adjust to fit, and Whamo, a guide for the burring part of the process.
Now for a guide for the first step of flatting the blade.
I really envy those of you who have that natural feel and balance for sharping by hand only. You don’t know how lucky you are. I keep trying it now and then hoping the guide would end up giving me a feel for position, but hasn’t happened yet. But then I am a newbee too.
Gary
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You must be logged in to view attached files.7 March 2017 at 9:30 pm #309875Hi dbockel2,
It’s really quite simple. When I tired to put a burr on my scraper, I kept getting off angle and instead of a even T burr, it looked more like I was trying to put a knife edge on the scraper.
I put the scraper in a vise to hold it straight up and down. Then put the Tite Mark (after altering it) on the scraper and slide the guides together until it’s almost.. almost tight. Then I just run the guide bar over the edge of the scraper and get a nice flat burr. The guides won’t allow me to keep tipping to one side or the other.
After you get the first flat T burr, your back to on your own again. But at least it helps me with this one step. It’s not really a big deal, but it helps me get rid of a wobbly T.
I wouldn’t go out and buy an extra tite mark just to be able to do this, I just happened to have two.
Like I said, I envy you guys with the natural knack.
- This reply was modified 7 years, 1 month ago by 5ivestring.
29 July 2017 at 7:18 am #314126For getting a perfectly 90 degree edge on the card, I made a simple L-shaped piece of wood that is exactly square. I just place that on my diamond stone and place the scraping card against it, and then when I slide the card back and forth against the block it creates a perfect perpendicular edge. I move the guide around a lot as I’m doing it so I don’t wear one part of the plate unevenly. You want to keep the same face of the scraping card against the wood as you work from coarse to fine, that way if your block is actually 89.5 degrees it doesn’t matter. Getting really crisp perfect 90 degree edges is the hard part of sharpening scraping cards.
for forming the burr, like really if you are making a guide you are making it harder than it has to be. Just tilt the burnisher very slightly and draw it along the card. It doesn’t matter that much the angle, so much as it’s a consistent angle and smooth (light) pressure.
My last suggestion: when you are figuring it out, practice on a really dense piece of wood like maple, or a knot on a less dense piece of wood. Scraping cards don’t work very well on pine or oak with their larger fibers, at least for me.
Hope this helps!
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