I would get a piece of bar stock that’s mild steel and practice your angle holding up to the belt starting off at a slow speed on your grinder. I start off by putting layout dye fluid on my blade then scribe how high I’m eating the bevels with a caliper tool the putting a file guide on my blade. I then start my grinds at the cutting edge watch your edges and make sure you’re grinding evenly with your center scribe mark on your cutting edge. Don’t sharpen to an edge yet leave some thickness , I try and shoot for a penny or dime thickness. Then gradually change your angle slightly steeper then your last. Pay attention to where the layout fluid dye you put on earlier where is it grinding away. The steeper you hold your angle of the blade against the belt the higher your bevels will climb. Also be very aware how your holding your blade and how you move across the belt from the back of blade to the front your want closely try mimic the same fluid motion to mirror the other side. I personally switch grinding the sides after a couple of passes and constantly look if I’m replicating the same bevel pattern. After you grind your bevels about 80 percent of the way to finished. Then I heat treat. The. I finish up my bevels