UW-DFab Eye protection

This model has not been assessed for community use or in a clinical setting. Further optimization may be required.

Submitted by:

JeffreyILipton

Mon, 2020-07-06 16:45

Vertical Tabs

General Information

Model ID

3DPX-014630

Category

Labware & Devices

Device Use

eye protection, safety glasses

Keyword(s)

eye protection

This is a modified version of the PUC-Rio Ocolus De Protecao developed by Joao Victor Azvedo from the open source medical supplies website. The design has been optimized for injection molding and die cutting. This has passed design review by Protolabs as an injection moldable design. We have not ordered injection molded components and have done our validation only against FDM printed versions out of PLA. We recommend ordering a sample run to validate the design before ordering a large volume run.

The cradle of this design is also 3D printable on an FDM printer from PETG or PLA. We recommend using HP MJF for larger scale 3D printing as it allows for autoclaving the cradles for sterilization.

The plastic protective sheeting can be produced using laser cutting, die cutting, or hand trimming. We recommend die cutting for large scale production and laser cutting for small scale production. The plastic sheeting is 0.010in PETG sheets but a range of thicknesses from 0.010in to 0.040in can be used. Alternative sources include presentation covers and overhead protector transparencies.

This design was developed by:

Jeffrey Lipton (University of Washington)
Mark Ganter (University of Washington
Tyler Williams (University of Washington)
Dmitry Levin (University of Washington)

3D Modeling/CAD Software

SolidWorks 2019

Model Origin

Custom illustration/CAD

How to Make

Printer Technology/Material

Polylactic Acid (PLA)

Printer Make/Model

Ender 3 Pro

Print Units

Pre- and Postprocessing Instructions

This design has two variants for injection molding and one for 3D printing. We recormend using an ABS that is medical grade for Injection molding. We have supplied a single cavity design as a zip file and solidworks file. The double cavity version has nicer rounding but a more complex mold and is provided as an STL and solidworks file

For printing we recommend printing in PLA with the following settings:

Nozzle Diameter: 0.4mm
Programmed Extrusion Width: 0.5mm
Layer Height: 0.2mm
Shells: 5 (which results in a 2.5mm wall)
Infill: 20%
Infill Type: Cubic
Solid Bottom Layers: 4 (which results in a 0.8mm thick bottom)
Solid Top Layers: 4 (which results in a 0.8mm thick top)

Acceptable alternate 3d printing materials include PETG, ABS, ASA, Nylon. We don't have any information on chemical resistance of HIPS, and we don't recommend this material at this time until the team can conduct further investigation and testing.

The component can be easily stacked in a printer to increase the number of parts per batch. However this requires more extensive post processing to remove supports

Attribution

Attribution Instructions

Please cite as the "UW-DFab eyeglasses V1"

Documentation

Supplemental Documentation