MultiHub Forum

I'm attempting to build a small, portable forge for basic blacksmithing and metal shaping that I can safely operate in my suburban driveway without violating local noise or nuisance ordinances. My budget is extremely tight, under $150, and I'm repurposing an old, small air compressor, a hair dryer for forced air, and a heavy steel brake drum as the firepot. The main challenge I'm facing is designing an effective, removable hood and chimney system to contain sparks and direct smoke upward without building a permanent, expensive structure, as I need to store everything in my garage between weekend projects. I'm concerned about heat management and safety, particularly ensuring the makeshift blower system provides consistent, controllable airflow without risking a backdraft or melting any plastic components.

Plan a portable, non‑permanent forge: a shallow metal hood over the brake drum with a hinged top and a short rigid chimney that vents outside; a spark screen and heat‑resistant tray below. Use the compressor, not the hair dryer, with a regulator and a simple hand valve/nozzle for steady airflow and a backdraft damper to prevent smoke backing. Nonflammable base, extinguisher, and store in the garage between runs.