Ah, bhai, first remember: good mould steel isn't a place to save money, or the chair will stick and warp. I learned cavities and gating must be balanced perfectly, or some chairs come out weak. And always calculate shrinkage for your exact plastic—my chairs ended up too small for the metal legs! My cycle time was a mess because the cooling was poor. I invested my late husband's pension in a cheap mould, and half my chairs cracked at the spines.
#exams#study
Jump in to reply — no account needed.