PDA

View Full Version : Sharpening an Anderson scraper?



928gene928
06-04-2010, 08:56 AM
Any suggestions on the best method to sharpen a new carbide Anderson scraper?

J Tiers
06-04-2010, 09:24 AM
Diamond wheel is best..... or hand diamond hones.

Just don't use a "green wheel", they fracture teh 'sharpened" surface and it breaks down faster.

Mcgyver
06-04-2010, 11:47 AM
I start by lapping with diamond paste the two large sides. get them to a mirror. an edge is formed by two surfaces so by getting them perfect to begin with is a one time event and i don't assume they're perfect to start with with.

grind a a slight curve on the breast, I like a big radius, maybe 10-15 inches but others like less. put this on at 90 degrees to the two flat surfaces. I agree with JT this is the way to put the radius on but have been corrected that it is possible to radius with a green stone then lap or even just radius with a power lap (although a diamond wheel is far far easier than trying to take that much of with a lap). Then with a rotary lap charged with diamond, hone about a 3 or 4 degree surface on the breast to create the two edges. It'll be a mirror finish.

This puts on the perfect edge imo