3D-Printed Eyeglass Frames: Affordable & Customizable Vision

How much do you spend on eyeglass frames—especially when your current pair suddenly breaks? Instead of ordering a new one and waiting days (or even weeks), we created a faster, cheaper solution: 3D-printed replacement frames.

These frames are designed to be printed quickly and customized to fit your lenses. You just slip the lenses into place, and you’re ready to go. They’re ideal as a backup or emergency replacement—simple, affordable, and functional.

This guide walks through the full process we followed to make these frames, from customizing the design to printing the final product. It's a complete look at how 3D printing can be used to solve everyday problems with fast, on-demand manufacturing.

3D Printer

Filament (e.g., PLA, PTEG, Nylon)

3D Modeling Software (e.g., TinkerCAD, Onshape)

Digital Calipers (for precise measurements)

Computer or Laptop (for design work and file preparation)

We start by designing the eyeglass frames in CAD. First, we take key measurements, including lens width, bridge width, and temple length, to ensure a proper fit. Using these measurements, we adjust the frame shape, making necessary modifications for comfort, durability, and aesthetics. This step ensures that the final product will be both functional and wearable.

Once the design is done, we prepare it for 3D printing. Instead of printing each component separately, we print the entire frame—with the temple arms—entirely in one piece. This minimizes the need for assembly and maximizes structural strength.

For this prototype, we use PLA filament, which is easy to print and readily available. Although PLA is effective for prototyping and basic applications, we look to experiment with more adaptive materials like PETG or Nylon in the future. These materials are more flexible and durable, hence better suited for long-term wear and daily use.

We tune the print settings—layer height, infill, and supports—to create a clean, functional product that's lens-ready.

After the frame is printed and cooled, we inspect it for print defects, such as rough edges or stringing. We use sandpaper to smooth out any uneven areas, especially around the nose bridge and ear rests, to make the frame more comfortable to wear.

Once the finishing touches are done, we insert the lenses into the openings. The design includes a shallow pocket around each lens opening, allowing the lenses to fit snugly into place without the need for tools or adhesives.

We then check the overall fit to ensure the frames are comfortable and the lenses are held securely. Now you can enjoy your customized, affordable eyeglass frames—ready to wear and hassle-free!

Bridge Length: 14.196 mm

Temple Arm Length: 130.00 mm

Frame Width: 158.099 mm

Material: PLA

Printer Settings: Default settings

Infill: 20%

Layer Height: 0.2 mm (standard for a balance of quality and print speed)

*Note: Measurements may vary, as the lens width, bridge length, and temple arm length are customizable to individual preferences.