That sounds like laser sintering
But the name "Multi jet" is a bit misleading if that's the case. These guys do an impressive range that aren't silly money for the performance, but not something you'd buy to have a play with unless you have a few grand lying around doing nothing!
formlabs.com
(
tarka_dall Like normal dall, only a bit more spicy, Thu 19 Apr 2018, 21:47,
Share,
Reply)
It's an infra-red based system
The slice you want to fuse is printed in an infra-red absorbing 'ink' on each pass which is heated by the high-intensity lamps fore and aft of the printing head. So, if you have a load of separate parts in the same layer they're all done at the same time on each pass - hence the speed.
(, Thu 19 Apr 2018, 23:41, Share, Reply)