hey paul, i got the rail line tool today…awesome work. do you use the same setup with the mechanical pencil? i was thinking about making a piece to fit. something like an eraser with a needle shoved through, so i can mark the rails for a tint. no pencil line to smear… will a pencil line sand off nicely, or does it darken the foam? anyone try the needle marking way?
Drill a hole in the other end and put an E-Xacto knife holder in it…Tight hole, maybe a little glue…You can change blade sizes to either cut, or scratch…