This is not very interesting but it gives you the idea and some of you will be starting your 3D printing journey with machines like these!
Shows a build being prepared on the computer, then the collection of parts are digitally sliced. The part slices are then sintered (melted) from the nylon powder which then hardens. The parts are then cooled and removed from the machine with the loose powder support simply being brushed and blown away.
Shows an object being printed in colour plaster, having the loose powder being delicately vacuumed, blown and brushed away from the delicate raw print and then sees it being impregnated with superglue to harden it and make it strong enough to carefully handle.
Shows the slice information being projected on to the bottom of the lifting build platform. The light hardens the wax resin which is then lifted out of the unhardened resin. It is then rinsed and the support structures are neatly cut away.
This shows how the resin material is deposited by inkjet heads and is then cured with light. This video doesn’t show the full colour version of the machine which works in the same way. The cleaning and finishing of the parts is more time consuming than the video suggests!
This doesn’t really show the process but it gives an idea of the type of machine it is and that it works similarly to SLA. Be aware that the video makes some bold claims that are debateable!