Kids Hard Hat – Parametric Toy Construction Helmet
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Parametric toy construction helmet for kids, sized by head circumference. Toy only, not protective equipment.
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Model information
- Source
- Printables
- Category
- Outdoor Toys
- License
- Creative Commons — Attribution — Noncommercial
ABOUT
A single-piece toy hard hat for little builders. The shell has a centre crest, two side ribs, six suspension-style lugs and a brim with a stiffening bead. Slots on both sides of the brim take an elastic chin strap.
Toy/costume use only. This is NOT protective equipment.
SIZING
- Default: 520 mm head circumference (roughly 3–6 years)
- Inner opening: ~187 × 155 mm
- Outer footprint: ~234 × 185 mm, height ~95 mm
- The OpenSCAD file is parametric. Change head_circumference (and, if needed, head_ratio, inner_height, brim widths, ribs and lugs) to fit other heads.
PRINT SETTINGS
Printer: Prusa CORE One, 0.4 mm nozzle
Material: Prusament PLA
Layer height: 0.2 mm
Perimeters: 4, top/bottom layers: 7/7
Infill: 20 %
Supports: organic, build plate only
Brim/skirt: none
Print time: ~10 h 14 m, about 250 g of filament
TIPS
- Print as modelled: brim flat on the bed, dome up.
- The organic supports fill the inside of the dome and never touch the outside surface.
- For the chin strap, thread an elastic band about 6 mm wide through the slots (7.5 × 2.4 mm) on each side.
FILES
STL (default size), SCAD (parametric source), 3MF (PrusaSlicer project with the settings above), .bgcode (print file for Prusa Core One).