TPU Strap for the Prusa Protective Shield

prusaprinters

<p>2 part TPU strap for the Prusa Protective Shield. Should fit most size heads.</p> <h3>Print instructions</h3><p>Depending on your TPU hardness, you may have to shrink or grow the Z axis. Softer TPU should be printed thicker, while harder TPU should be thinner. The current thickness works for my specific TPU (Amazon basics white) at .2 layer height.</p> <p>The half with the "pins" is thicker and not made to stretch much. The half with the holes is thinner and should stretch to insure a good fit. I went this route since it's a compromise between durability (thick half) and stretchy (thin half.) In theory only the thin half should wear out over time and need to be reprinted.</p> <p>Keep in mind that some hospitals may not accept TPU as a sterilizable part. TPU can not be cleaned with bleach or be autoclaved. It can be sterilized with Isopropyl alcohol, hydrogen peroxide, dry heat, or UV-C. Be prepared for them to only accept this as a disposable, single use part (meaning you'll have to print a bunch per mask.)</p> <p>That being said, if no elastic or rubber bands can be found, this is an alternative.</p> <p>Update - XL version added that gives 40mm additional total length.</p>