Hi guys, so after doing some reading and research, I built a jig that would give my scraper blade a 60mm radius and 5 degree negative rake.
I am using a regular old bench grinder that has a diamond cup wheel on it.
Right now I'm not sharpening carbide and just using old metal files to test the geometry and make sure I get the 60mm radius and the two cutting edges with the Crest in the middle with the 5 degree negative rake.
My jig works perfectly it cut the file into exactly 60mm radius. However when I flipped the scraper over to give it another edge after I have it one pass through the bench grinder the Crest was not in the center of the blade. It looked lopsided and off like it had missed somehow.
I will be uploading pictures tomorrow of my jig and what the blade looks like. Just wanted to put this out there and see if anyone had similar issues.
I'm basically following this guy's setup, my jig looks different but used the same principal.
https://youtu.be/ZSGeDs0d8IA
I am using a regular old bench grinder that has a diamond cup wheel on it.
Right now I'm not sharpening carbide and just using old metal files to test the geometry and make sure I get the 60mm radius and the two cutting edges with the Crest in the middle with the 5 degree negative rake.
My jig works perfectly it cut the file into exactly 60mm radius. However when I flipped the scraper over to give it another edge after I have it one pass through the bench grinder the Crest was not in the center of the blade. It looked lopsided and off like it had missed somehow.
I will be uploading pictures tomorrow of my jig and what the blade looks like. Just wanted to put this out there and see if anyone had similar issues.
I'm basically following this guy's setup, my jig looks different but used the same principal.
https://youtu.be/ZSGeDs0d8IA