#video on #3D-printing in metal with laser SLM in a #DIY rig #bootstrapping #manufacturing #toread
#video #toread on #bootstrapping #DIY SLS #3D-printing using Inova
another #SLS #3D-printing #video #toread
another #SLS #3D-printing #video on Micronics’ product (looks like US$3700 desktop SLS of metal-filled nylon 12 (US$88/kg) or TPU, not metal), by #CNC-Kitchen. Still on Kickstarter, though. They’re using quartz-halogen bulbs to preheat their build chamber so they can use just a 5-watt blue diode laser with a 250μm spot size to “kick it over” the melting point. Too bad about the large spot size; they say their step accuracy is 5μm, and they’re using 110μm layer height. Inside the printer they have a “carbon HEPA filter” to remove dust.
#video about ultrasonic #machining #manufacturing to drill glass with 40kHz ultrasonic spindle units for grinding, developed in the early 80s by Yoshihiro Take, chairman of Takesho, in Kasuga, Fukuoka Prefecture, Japan, as reported by Michelle Yamamoto