Novelty number glasses in two sizes, three pairs

A family wanted matching party glasses for a school event, one child size and two adult, in a single glow color.

The job

The request came in through the website form with a date and a size list, no file. We designed the glasses as a parametric model, the two zeros as eye openings, the frame as a flat plate that prints face up with the numerals raised on top, and the temples as flat pieces that push into blind slots from the back and are fixed with a drop of adhesive.

The first test print was too small on an adult head. Arm spacing was widened to about 149 mm for adults and 125 mm for the child, arms lengthened to typical frame lengths, and the files rebuilt. Every part passed the mesh gate before the print project was written.

Printed in a single glow in the dark PLA with a hardened steel nozzle, three pairs in one plate.

Render of the adult size 2000 glasses, pink, viewed from an angle — Adult size, render from the production file (not a photograph).

Render of the child size 2000 glasses, pink, viewed from the front — Child size, render from the production file (not a photograph).

Render of the adult glasses glowing green in the dark — Glow in the dark PLA, render of the lit state (not a photograph).

Facts


Order	VF-Q-2026-016
Material	Bambu PLA Glow, 0.4 mm hardened steel nozzle, 0.20 mm layers
Pieces	3 fronts, 6 temples, one plate
Sizes	Child, about 125 mm arm gap. Adult, about 149 mm arm gap
Fits	Temple slot clearance 0.30 mm, blind slot with a 0.8 mm front skin
Files	Bambu Studio project with settings, STLs per part, mesh QA report, first article template

What made it work

Head sizes beat guesswork. The resize came from measured head widths, and the second print fit.

Raised numerals 1.2 mm high read clearly after sanding and survive a child's hands. Thinner relief disappears.

Glow filament is abrasive. The hardened nozzle is not optional.

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