RATIO Face Shield // CLOSED top NOW with 3 HOLE PUNCH OPTION

prusaprinters

The RATIO face shield is based designs tested from PRUSA to NY based filament pros GRAFTMILK. I continue to develope this model with a surgeon and dentist, but it is at a point now, others can print. This face shield design takes into account; //speed to print = cost effective & part volume per hr //easy to clean and maintain, replace shield materials //2 parts per print cycle, 2 on a bed //uses 3M command strips to hold shield in place, no holes //lightweight and one size; primary small to medium head //silicone or other s head strap, clean flexible, adjustable per cut to tighten There are a number of 'hole punch' designs for face shields & for various reasons I opted to move toward replaceable tapes. 3M command strips are strong, they do not leave residue and many people know how they work as double-sided removable adhesive strips. This method can be used for a variety of films without holes; as varied as 4mil acetate to 10 or 12 mil PVC (8.5"x11"). These are "report cover" sheets or "overhead projector" sheets, FYI. I mount the shield with double sided tape, 3M command strips or double sided 1/2" width tape. Hold and place tightly the shield on one end. Square up on the edge of the headband and lead it around to the next strip and place. Two strips cap hold a light shade easily when slightly tightened when placed on the second strip. Any longer tape across the entirety of the headband may be used as well. I had the 'theraband' silicone tubing on hand from another project and this works well as a head band like 'croakies' on your sunglasses. Exercise band type silicone tubing is easily sourced and not too expensive on Amazon. I'm using about 14" per band. The band slides over the temples (with a little rubbing alcohol spritz) and should be somewhat adjustable. If I run low on that material, I still have a segmented templet to tie off other materials like elastic. Print instructionsI print on draft to get as quick a print done as possible. 20% to 25% infill is mainly in the side temples. Printing in different colors will allow individuals working on teams to keep their separate. I recommend providing 5 different frame colors per delivered batch.