Easy Print Reusable Filter Mask Respirator Pack v1.1

Easy Print 3D Printable Respirator

INSTRUCTIONS FOR PRINTING, ASSEMBLY AND USE

PRINTING

All components are designed to be printed with .4-.6mm nozzles with a layer height of .2-.3mm.

The respirator is comprised of three printed parts: mask, cap and insert, with optional ear bands. The mask is provided in two sizes and the cap and insert are designed fit both. If neither size fits comfortably, they can be resized in the user’s 3D slicing program before printing. When resizing, remember to resize the cap and insert along with the mask component.

UPDATE: The masks are now provided as solid and hollow objects, allowing for different ways of printing them.

The solid mask objects must be printed using the slicing program’s “spiral vase” option with no base layer. A 2mm brim should be used to aid when bed adhesion. This allows the mask to be printed quickly, smoothly and with the least possibility of a breach in the seal of the mask when used. Additionally, printing using the spiral vase method provides lightweight flexibility and comfort.

**The hollow mask objects are designed to be printed as a normal object in the slicing program, with the application’s “detect thin walls” and “create additional perimeters if needed” turned on if necessary.

The cap and insert parts may be printed in the manner that best produces small parts on each type of 3D printer.

ASSEMBLY

The respirator is designed to snap together with no additional adhesives. The small end of the mask clicks into place in the cap and the filter is placed inside up against the interior of the cap while the insert is clicked into place behind it to lock the filter in place.

Two 2mm holes should be made in pairs on each edge of the mask, around 40mm apart and halfway between the bridge of the nose and the chin. Rubber bands can then be attached to these holes to create ear bands to hold the mask securely on the user’s face. A printable ear band is included with this package if rubber bands aren’t available.

The mask is ready to be used at this point, but can be made to have a better seal with self-adhesive foam weather stripping for windows. This material is inexpensive and available at stores everywhere.

The filter may be made from a number of materials, including vacuum filters for shop vacs and cotton sheeting. Breathability is key when choosing a filter material. To swap out a filter, pull the filter bracket back out and remove the old filter underneath. Put in the new one and replace the bracket by clicking it into place.

USE

Place bands over each ear, or attach larger bands that can go around the head, covering the nose and chin completely with mask. Change filter after each day’s use.