another print over the weekend:

3D Printing
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another #XMachines #Lorei print over the weekend:

is there such a thing as food-safe printable plastic?
this print is a cookie cutter, and i’m under the impression that using it for one batch of cookies is fine but after that it’s basically no good anymore.

after the first batch of cookies i’ll plane it down a bit and repurpose as an ink-stamp for my son to play with. but if i could i’d love to make some reusable food-grade stuff.

high temp annealing maybe? something to really close off the small crevices? any ideas out there?

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You’re right to be concerned about the porosity, but I don’t think there’s a good way to fix that. I don’t know if there is a food-safe sealant.

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https://theepoxyexperts.com/shop/adhesives/max-clr-24-oz-epoxy-resin-food-safe-fda-compliant-clear-high-impact-coating/

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@Tom_L awesome!!

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Be very, very careful with epoxies. If you don’t get the mix ratio scrupulously accurate, it may leach uncured chemical into the food. Like… weigh it out on a gram scale into a single container so you don’t even leave residue behind on the second cup.

Here’s a relevant thread with some good discussion on cookie-cutters: https://groups.google.com/forum/#!topic/3dprintertipstricksreviews/OSxXg5VTIIs

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Taulman T-Glase is allegedly FDA approved food safe:

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@Jon_Gritton the problem is the FFF process isn’t food safe. The gaps between layers and start and ends, etc. can trap food that can go bad. That’s why we were discussing sealing it safely.

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@Jeff_DeMaagd agreed but (and I’m no expert here!) with something like a cookie cutter, that is only going to be in contact with the outline of food, which is then going to be baked at a high temperature, I’m not sure how much will be transferred that’ll survive the process. I think there’s a big difference between something like this and, say, a mug that’s expected to hold food/liquid for extended periods of time, over daily repeated use, and where that food is then directly consumed.