Several times before, in some other projects, I've wished to be able to build my own little louvers.
A previous attempt to make a punch and die works but has imperfections to build a even row of identical louvers.
Today i've started another attempt.
the groove for the die was made with a radius mill and cut off one side.
A sharp cutting edge was added.
The die mounted on a piece of wood together with a stop and a ratched grip
with a quadrant milling cutter i've made the punch.
the punch guide
all together clamped an read for the next louver
you can use a hammer or a press.
the result. I'm happy with it and look forward to make some of them for the hull of the excavator.