Run a 3D printing business. Take orders, fight the spaghetti monster, and grow one hobby machine into a print farm empire.
Rotating shift calendar for nurses, EMS, police and plant crews. 4 on 4 off, Panama, Pitman, DuPont or your own pattern.
Quote 3D print jobs from real costs — filament, electricity, machine wear, labour and markup — and export a branded PDF invoice.
Type any title and get a ten-question quiz about it. If nobody has asked for that one before, it writes a fresh quiz on the spot.