I’m starting to layout my first big rasp knife. This was a 2-1/4” x 12” Horseshoe rasp. I built a fire and got a bed of coals going. Threw a few rasps In overnight to take temper out. Now I’m laying out and filing, grinding. 6” Elk a main beam base for handle and blade is 11-3/4” , got aways to go yet, any tips. Critics , fire away.