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CT PPE Project — Design Files

Last Updated: May 15, 2020

This is a repository of active design files for CT PPE Project volunteers. For all communication and announcements, please use our Discord server. This page is just a alternative to pinned files in the Discord channels.

For any matters regarding this page, please contact Kevin OrcaSax on Discord.

Elastic Adapters

There are a few different files in use:

  1. The primary file for printing in PETG only is ElasticAdapterRemixV2.2.1.stl
  2. If (and only if) the bottom of your slots are printing narrow, try ElasticAdapterRemixV2.2.1.K.stl (PETG only)

Print Tips

Layer height
0.30mm
Material
PETG highly recommended
Nozzle
0.40mm or larger
Build surface
PETG can adhere very well and damage some build surfaces. Use painter’s tape if you’re not sure.
Infill
Print as close to solid as possible. 85-100% infill. Note that this part will print mostly solid anyway since the side, top, and bottom walls will take up most of the space.
Other Instructions
For optimal strength, use 4 walls with 0.40mm nozzle. Larger nozzles probably will work fine with less.

Face Shields

As of April 2020, we are no longer 3D printing frames for face shields. These files are here for reference if we start printing them again. Keep an eye on the Discord channel for announcements.

  1. Most of us have been printing the 17.5mm Fluted remix of the Prusa RC3 design. We’re not printing the cap, but this is an option to add top protection to the face shield.
  2. The DShek logos removed version.
  3. The original source file Prusa Face Shield RC3 is also acceptable. We did not print the bottom piece since the thick visor material we were using didn’t need it.

Print Tips

Layer height
0.25mm (especially if stacking, in which case, use a 0.25mm first layer height as well.)
Material
PETG recommended / PLA okay if your brand is flexible enough to assemble without breaking
Nozzle
0.40mm or larger
Infill
Prusa recommends 3 walls and 30% infill.
Platform additions
Try to avoid printing with raft or brim. The burrs created when removing these are difficult to clean up and can be very uncomfortable for the wearer.
Build surface
Adhesion can be a challenge with this model because of its minimal surface contact. If the part detaches while printing, try raising your bed temperature or use gluestick or painters tape. You can also add “Mickey Mouse Ears” to edges facing away from the forehead to increase adhesion.
Other Instructions
Refer to our Discord #3dprinting channel for cleaning and delivery instructions.

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