I've wanted a louver press for a long time now. Unfortunately the price of the dies is way out of reach for me to just to have around. I built a press break a few years back, so I have the squishing means to do it. Just needed to figure out a cheap way of making dies. To the scrap pile for an old leaf spring, a left over piece of boiler plate steel I cut for a customer years ago. warm up the CNC plasma cutter, milling machine, welders, grinders etc. It still needs a few adjustments, but I pretty darn happy with the results. This is 18 gauge mild steel.