Respirator Molds (Silicone Mask)

thingiverse

AFTER FINALIZATION, ANOTHER CHANGE WAS MADE TO THE MOLD BOTTOM. MOLD BOTTOM FINAL IS NOW THE WORKING VERSION AS OF 4/7. ALL FILES HAVE BEEN UPDATED AND REPLACED BUT NOT TESTED. FILES HAVE BEEN CORRECTED, AND CHANGES WERE APPLIED. ON 4/5, A SOLUTION FOR THE PASS-THROUGH PROBLEM WITH THE BOTTOM MASK STRAP CONNECTORS WAS FOUND. THIS VERSION SHOULD BE EASIER TO DEMOLD THAN PREVIOUS VERSIONS. A LITTLE RUBBER MAY NEED TO BE REMOVED AFTER CASTING. THE INNER AND OUTER FILTER COVERS WERE THICKENED SLIGHTLY TO MAKE THEM EASIER TO CAST IN RESIN. HOWEVER, THE INNER FILTER COVER'S STABILITY ONCE THE MASK IS CAST IN SILICONE AND BEING WORN REMAINS UNTESTED. ANYONE MAKING THESE PLEASE SHARE THEIR EXPERIENCE IN THE COMMENTS. RESPIRATORMOLDBOTTOMNEW MOVES THE GROOVE THAT CATCHES THE INNER FILTER COVER TO THE MIDDLE OF THE RUBBER, WHICH SHOULD KEEP IT IN PLACE MUCH BETTER. I SUGGEST PRINTING THIS VERSION OVER THE REGULAR ONE. PLEASE NOTE: DO NOT PRINT THESE FILES YET AS THERE IS A PROBLEM WITH SOME OF THEM. CORRECTIONS ARE ONGOING (4/4/20). THESE FILES WILL ALLOW YOU TO MAKE A SILICONE RESPIRATOR WITH A RESIN-CAST INSIDE AND OUTSIDE FILTER COVER. PRINT THE RESPIRATOR MOLD TOP AND BOTTOM FILES, THEN ASSEMBLE THEM WITH A RUBBER BAND. ADD SOME TAPE OR CLAY AROUND THE SEAM JUST IN CASE IT LEAKS. ONCE THE TWO HALVES ARE ASSEMBLED, CAST A FAIRLY HARD SKIN-SAFE SILICONE INTO IT, SUCH AS DRAGON SKIN 30, WHICH IS AVAILABLE FROM SMOOTH-ON. I WILL PROVIDE LINKS AT THE END OF THIS WRITE-UP. IF YOU NEED TO REPAIR A CASTING, SIL-Poxy CAN BE USED. THAT IS ANOTHER PRODUCT FROM SMOOTH-ON. THE TWO MOLD BOX FILES ARE DESIGNED TO ALLOW YOU TO CAST MOLD RUBBER INTO THEM. ONCE CURED, DEMOLD THE RUBBER THEN CAST RESIN TO MAKE RESIN FILTER COVERS. I SUGGEST USING TASK 8 RESIN ALSO FROM SMOOTH-ON. BOTH DRAGON SKIN 30 AND TASK 8 RESIN CAN BE STERILIZED IN AN AUTOCLAVE SET TO 250°F FOR 30 MINUTES. DO NOT HEAT DRY. OPEN THE AUTOCLAVE AT THE END OF THE CYCLE AND ALLOW IT TO AIR DRY, THEN YOU SHOULD BE GOOD TO GO. PLEASE SHARE THESE FILES WITH ANYONE AND EVERYONE. BE SMART AND BE SAFE. THE ORIGINAL RESPIRATOR DESIGN WAS POSTED BY Respirator Budashis AND IS LICENSED UNDER THE CREATIVE COMMONS - ATTRIBUTION LICENSE. YOU CAN FIND THE ORIGINAL FILE HERE: https://www.thingiverse.com/thing:4227473 DRAGON SKIN 30 CAN BE FOUND HERE: https://www.smooth-on.com/products/dragon-skin-30/ TASK 8 RESIN IS AVAILABLE HERE: https://www.smooth-on.com/products/task-8/ SIL-POXY CAN BE FOUND HERE: https://www.smooth-on.com/product-line/sil-poxy/