Thanks to Andy Scherf, John and Laurie MacKay, Marty Holzschuh, Adam Snyder, Scott and Beth Barnard and Laura Sikkenga for demonstrating to 65 students at Whitehall High School in Whitehall Michigan. Teacher Jeremy Sheaffer had a couple of his classes 3d print some patterns for us to mount and mold. Very successful day. Got some really nice patterns.