Im tyring to use a French skiver to get the flesh side of thick leather (about 6mm) mitred to 45 degrees so that I can sew leather boxes or cups. The trouble lies in obtaining a straight cut along the length. Also, there is about a 1mm border on wither side of the cutting area, If this is in contact with the cutting mat, there will be a small region at the edge of the leather that is not mitred.
Im thinking of making an Aluminium jig where one edge is mitred at 45 degrees, a bit like a rule with one edge sloped.
Has anyone had much experience with this tool? Thank you.