Powder bed and inkjet head 3D printing - Wikipedia
DIY inkjet printer – Dangerous Prototypes
Oasis 3DP, an open source powder and inkjet 3D printer - YouTube
Powder bed and inkjet head 3D printing - Wikipedia
SLS wax printer - RepRap
What is 3D printing? How does a 3D printer work? Learn 3D printing
Types of 3D Printing in Metal
OpenSLS - An Open Source Project Creates a Sub-$15K Selective Laser Sintering 3D Printer - 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing
Printing bones on a DIY powder bed 3d printer | Hackaday.io
Powder bed & inkjet 3D printing like you've never seen before! – EngineerDog.com