Anti Fog Surgical Mask Brace - Adjustable - Fast Batch Stack Print by FullPlasticScientist

Last crawled date: 2 years, 11 months ago

This is a remix of the flatpack face covering kit.
Intended to stop glasses fogging and improve mask fit. With elasticated chin for comfort and multiple adjustment positions to fit a wide range of facial geometries.
50x per day can be printed in PETG stacks on a single printer.
Developed due to requests on social media to supply mask braces online in Q1 2021. It is a result of samples receiver collaborations providing feedback in order to find the most optimal form to accommodate a broad range of face shapes and sizes. Design was finalised end of March and offered at low cost across europe and america. 100s of braces have been supplied globally in the past months on a single delta printer.
This is a remix of my production files, simplified for ease of printing on any 3D printer. After a year of fighting the pandemic I need to rest. Hope that these files can help those where the pandemic still rages. With this listing I can stop knowing did all that I could.
Can be used with either 15mm button hole elastic, 200mm trashcan elastic bands or 117B elastic bands. Best option is Alliance rubber company 117B anti microbial non latex rubber bands if available.
User guides can be found here:https://www.fullplasticscientist.co.uk/mask-brace-fitting-instructionshttps://www.fullplasticscientist.co.uk/sterilisation-recommendations
Supporting literature can be found here:https://www.fullplasticscientist.co.uk/evidence-for-improving-mask-fithttps://www.fullplasticscientist.co.uk/evidence-for-airborne-transmission
For printing instructions follow the guide in my flat pack face covering kit:https://www.thingiverse.com/download:8617804
Advise reflowing the plastic and pre forming the braces. This can be achieved using a t-shirt press at 175 deg for ~ 7-10 seconds to correct any printing defects and soften the frame. With standard provided Teflon sheet that comes with a t-shirt press between the frames and the heating element. This will leave a texture on the surface and remove / reflow burrs on the rougher bridging layer side. I then quickly place them on a large round tub to give them a slight inward curvature. This will significantly improve the chances of a good fit and increase durability. Wear heat resistant gloves and take due precautions when using a heat press. For other ways to thermo-form, see 'community mask frame' video guides. https://www.thingiverse.com/thing:4231792
Ensure every brace is checked for defects before supplying. Using bright inspection lights, bending repeatedly, listen for 'cracking' when bending as can indicate a poor join. If the frames are brittle then may need to reduce flow % or printing temperature.
Deburr with craft knife and cut resistant gloves. Ceramic blade knifes work best.
-Licence and selling of face covering kits-
It would be great if you donated these face covering kits to those in need for free. To encourage distribution of these braces they can be sold for profit. The design is open to the community for modification and improvement.
Use
Recipients of the mask brace kits are responsible for using their own judgement before deciding to order, receive, distribute, and use these mask braces in any setting. These mask brace kits can play a part in reducing risk to users, but they are responsible for following established government and their institutional guidance as to how to protect themselves from COVID-19. It is expected that these mask brace kits will be used as a last resort in conjunction with eye protection in accordance with the relevant guidelines. Mask brace kits are not a replacement for or negate the need for users to stringently follow the recommended hygiene practices or other relevant guidelines. Recipients of mask brace kits are required to provide a copy of this disclaimer to any third party before distributing them further.
Production & Certification
These mask brace kits are made to a common design but are made from various brands of PET-G plastic and on multiple types of 3D printer. This type of frame-based face frame/brace kits are widely used in large numbers around the world to combat the coronavirus pandemic. However, the mask brace design supplied in this pack does not have regulatory approval. Hence these mask brace kits are considered for temporary emergency use only when no other PPE is available. Potential users should consult their guidelines and procedures regarding the use of non-standardised PPE before using these mask brace kits. The plastic of the frames has a limited lifespan and will degrade with successive use; hence they should be viewed as temporary and disposable.
Limitation of warranty
No representation, promise, express warranty or implied warranty concerning the suitability of these mask brace kits for any medical or personal protective use including, without limitation, their effectiveness to filter, block, or protect against any pathogen and particle, including COVID - 19. The kit is provided in a good faith effort to help with the COVID-19 pandemic. If you use this design, you agree to comply with any government or institutional guidelines. You also agree that the designer: (1) Disclaims any warranties related to fitness of use, non-infringement, or compliance with regulatory standards; and (2) Have no liability for any claims of any kind made by person, either as a result of use of or as related to the item.