Component-by-component explanation (metalworking context) 1. Bed Heavy cast-iron bed provides alignment and vibration damping. Not ground to high precision like an engine lathe, but sufficient for aluminum tolerances typically used in filters. The mass helps maintain concentricity during turning. 2. Headstock Houses the spindle and bearings. Likely plain bearings or early roller bearings. The mounted cylindrical aluminum blank appears to be held on a faceplate or simple chuck. Drive was likely b