Thermoplastics in the modern economy seem to pose a nuisance to society in their limited reuse in accordance with their mass production. Traditional 'food grade' thermoplastics like polyethylene and polypropylene are prevalent and end up in the trash. 3d printing, specifically Fused Deposition Modeling by which feeder stock in the form of 'filament' is pushed through an 'extruder' on a 3d traversed gantry, could continue to offer a way forward in economically reprocessing these type of plastics for reuse in 3d printing. The problem posed by these particular plastics is their volatility to temperature gradients, especially in traditional open gantries. Enclosed 'heated chambers' pose problems, one of which is moisture in the raw stock material. By enclosing the manufacturing and reuse in a vacuum environment, a prescribed hardware setup and software control process likely could be parameterized for the reuse of these plastics for 3d printing.