I have been playing with engraving, and also making my own gravers and attempting to freehand grind in the angles, results are spotty and primitive. I realise the problems with this are lack of consistency, and things not being quite right. SO I emailed some folks about angles and one of the teachers from the engraving class I took at Peter's Valley messaged me about basic angles. I dont have any of the fancy angle holders and jigs and thought how I might do it without them. I have had great success with grinding specific angles using an angle fixture and adjusting the platen angle, and figured why not try it with this? My angles were 50 degree main bevel and a 15 degree heel, I used a V block holder for the 50 degree, then I set it at 15 degrees, and using the protractor marked two lines at 15 degrees angled away from the platen. only tried them a little bit but seems like it worked quite good! I ground 6 all the same so I would have consistent gravers to practice with, just need a holder for them now.