The Plasma-Pal motorized hole cutter attaches to any standard hand-held plasma torch to automatically cut accurate holes. The cutter is said to cut holes in steel or aluminum up to 1 1 /2" thick. Hole size is adjustable from 1/2" up to 8", and centers are found with a cross hair sight gauge.
Editor PickControl Micro Systems Reports Advances in Polymer Welding for Medical Devices
Specifically, the company says that longer-wavelength lasers can now effectively weld clear polymer parts.