Have diced up the front seventy panels, and have gone with 1/2 in border. I need to trim the Vliseline H640 back to the border sew line so I can piece it together. I have made my own george trimmer with a 14 x 4-inch ruler and epoxyed a 1/2 inch alloy angle strip, which cost $12 to make. Had to buy a 60cm rotary cutter to use with the angle ruler