Dremel & gcode makes for some interesting attempts. https://opg.optica.org/prj/fulltext.cfm?uri=prj-7-8-823&id=415059 https://opg.optica.org/prj/fulltext.cfm?u

Dremel & gcode makes for some interesting attempts. https://opg.optica.org/prj/fulltext.cfm?uri=prj-7-8-823&id=415059 https://opg.optica.org/prj/fulltext.cfm?uri=prj-7-8-823&id=4... at least gives a purpose for making functional electrical chromaticglass & way to reduce power requirements of google glasses.