I may be putting too much together, but I am about to try this new jig for the first time *and* use it on my 20" planer blades off a Powermatic 209. The blades are laminated HSS
I was trying to be careful, but still managed to put a board through with a nail buried in it. Nice 200 year old American Chestnut, but with a nail...
I have a pretty good sized nick in the edge of all 4 knives, though one is worse than the others. The cutting bevel cannot be more than 1mm wide. The back bevel is about 5mm (1/8" thick, 40 degree back bevel). The cutting bevel is supposed to be 35 degrees according to Powermatic. If I work out the nick I will likely enlarge the primary bevel, perhaps doubling it. This will eventually double any resharpening time down the road. On the other hand tackling the back bevel would be very time consuming I imagine.
I'm already dreading a bit the 8 hours I will probably need, based on other people's observations on this forum. People have talked about taking 2hr per blade and on shorter blades. My hope is that this primary bevel is narrower than the others. That could speed it up.
What do you all think I should do? Just focus on the front cutting bevel and not worry about it getting a lot wider?
Thank you for your help.
I was trying to be careful, but still managed to put a board through with a nail buried in it. Nice 200 year old American Chestnut, but with a nail...
I have a pretty good sized nick in the edge of all 4 knives, though one is worse than the others. The cutting bevel cannot be more than 1mm wide. The back bevel is about 5mm (1/8" thick, 40 degree back bevel). The cutting bevel is supposed to be 35 degrees according to Powermatic. If I work out the nick I will likely enlarge the primary bevel, perhaps doubling it. This will eventually double any resharpening time down the road. On the other hand tackling the back bevel would be very time consuming I imagine.
I'm already dreading a bit the 8 hours I will probably need, based on other people's observations on this forum. People have talked about taking 2hr per blade and on shorter blades. My hope is that this primary bevel is narrower than the others. That could speed it up.
What do you all think I should do? Just focus on the front cutting bevel and not worry about it getting a lot wider?
Thank you for your help.