Keurig reusable cup
by VincentJGeisler, published
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the only concern about PLA is the voids the printers leave make for a spot for mold or whatever to grow. pla is what biodegradable utensils/plates/cups are made out of. you could just seal the stuff with a food safe clearcoat.
Please do, I have avoided using my printer for anything that would come into contact with food out of an abundance of caution. I'd like to hear what your friend says
Im using ABS. afaik its safe as its also use in many plastic eating utensils, heating trays etc. The main concern is side reactions due to heat (over 240c) and breakdown products. I extrude at 210c so Im well off from the breakdown temperature so Im pretty sure is safe. You bring up a valid concern though and I will confirm this with a friend who is a molecular biologist next chance I have.
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Acid brush (hardware store in plumbing)
DMC (fiberglass supplies store)
300 mesh stainless screen (Metal Supermarket, metalsupermarkets.com/)
4 printed parts. Cup, lid top and bottom ring.
gloves (DMC will strip all the oils out of your skin)
Safety gear (eyes, face,.lungs and toes,..)
Print the parts, push bottom ring to bottom of cup, use an acid brush + liberal amounts of DMC to solvent weld bottom ring into place. Let harden for an hour.
meanwhile using the top ring as a template draw out a pattern then cut some 300 mesh screen to slightly under the OD of the top ring. Screen should fit in the bottom of the k-cup being held up by the bottom ring.
Once you have a good fit, slip in the top ring. If needed use some DMC to Sol-Weld the top ring in place sandwiching the mesh between the two rings.
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