Toddler Toy Smooth Numerals 0-9

thingiverse

This design is created to be 10 puzzle pieces (numbers 0 through 9) that fall through the plate and into the container below. In the United States, the Child Safety Protection Act demands warning labels on packaging for toys containing small parts. A tool called the small parts test fixture is used to measure toy parts. It is a cylinder tube that is 1.25 inches in diameter and between 1 and 2.25 inches deep. This fixture is designed to mimic a child's mouth and pharynx. Any object that fits inside the tube is considered a small part, requiring a label on its packaging indicating it is a choking hazard for small children. This 3D object at its current scale (in inches) contains small parts. The puzzle may be scaled larger but is currently designed for a 3D print bed with dimensions not quite 9in by 9in. The usable dimensions are 6in by 6in. If you have a larger printable area and would prefer to give this toy to a child younger than 3 years, please scale the design appropriately. Also Note: I do not recommend the lesson plan below for very young children; even if it were developmentally appropriate, the use of small beads, buttons, or base ten counting blocks also presents a choking hazard.