Easy-swap frames optimized for 3D printing.
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$20
287
2
10 k
updated July 19, 2026

Description

👉 Check out the Prusament Ultraglow print over on Instagram

Features

  • Easy-swap design - Unique lens retention system

  • Threaded inserts - Easy to take apart. No plastic threads.

  • Dowel pin hinges - Stronger than you think.

  • No supports needed - Optimized for FDM printing.

How they work

The Hitomi frames feature an original easy-swap design, allowing for limitless customization.

A single screw releases the hinge and temple arm assembly and allows for lens removal.

Printable demo-lenses are used for prescription lens cutting (edging) by an optician.

Temple arms are printed flat and then heat-shaped with the use of a printed mold.

Try before you buy

Bill of materials

Part

Type

Quantity

Shop

Screws

M3 x 5mm (L) countersunk head

2

tme.eu / mcmaster.com

Inserts

M3 x 4mm (L) x 4.5mm* (OD)

2

tme.eu / mcmaster.com

Pins

M1.5 x 8mm (L)

2

tme.eu / mcmaster.com

* Optional hinge available for 5mm OD "Voron spec" heat set threaded inserts.

Dimensions

Frame width: 139.5mm
Frame height: 47.5mm
Temple arm length: 139mm
Nose bridge width:  18.5mm

These dimensions are for the standard, unmodified model.

Assembly Instructions

➡ Full documentation available on EIGA.works

Licensing

Hitomi frames are under a strict non-commercial, personal use only license.

.STEP files included can be freely modified for personal use.

For publishing remixes, modifications or any other questions please contact me.

Changelog

update 1.1

Improved BOM sourcing and compatibility
Files updated: Hinge.step Temple.step

  • Updated heat set insert hole depth and diameter

  • Added hinge variant compatible with M3 "Voron spec" heat set inserts (5mm OD).

  • Temple arms updated for alignment with the revised hinge plates

  • Updated BOM and shop link.

Tags



Model origin

The author marked this model as their own original creation.

License