FDM 3D Printing 

Compared to traditional plastic manufacturing like injection molding and resin 3D printing, FDM (filament-based) 3D printing offers a more sustainable path—especially when combined with recycling. Injection molding produces large volumes efficiently but relies on expensive molds, high energy input, and often results in excess material waste like sprues and runners. Resin 3D printing creates high-detail parts but uses toxic, non-recyclable resins that require careful disposal and generate chemical waste. In contrast, FDM 3D printing produces less waste per part, can use biodegradable or recycled materials, and allows for local, on-demand production. With closed-loop recycling, it becomes one of the most environmentally conscious plastic-making methods available.