Current SLM is mostly locked in on one material with very high cost to aquire and operate. Using Granite plates our machine will be low cost, precise and have very good vibration dampening.
Fill a slot with a powder extrusion head and deposit layer by layer. Linear servos, magnetic encoder, and air bearings will allow for precise fast movement.
Multi Material solution: Will use a glut of powder at the tip to approximate a circle of the powder bed design. This allows the powder extrusion system to not be a limiting factor unlike an FDM machine. The main challenge right now is to find a balance of low enough pressure to avoid ignition of metal powders and enough air to pull the extra powder away from the head.