I use a portaband mounted vertically to a small metal table to rough out my blades. I'm using mostly cpm154/154cm steel. What brand of saw blades are you guys using? Seems like I can only get two or three blades cut out before needing to change blades.
I just cut out 4 pretty good size Bowie blades out of 3/16 1075. With one blade and it had already done a bunch of other cutting. Let me see what the box says.
What type of blades are you using?
For my HF portaband I use Morse blades. 14/18 tpi. I get them on Amazon. 3 pack is $16. They last a good while.
I cut 1/8 AEB-L. Can make 15 blades or more easy on 1 blade.
I do often brush a little Moly-D on the outside of the my morse portaband blades to keep things cool. I've seen a few of the cutting lubes in a grease stick form as well, though memory fails me which was recommended around here.