What 3D printing project are you working on today?

[ninj]

This article (https://www.smith3d.com/unraveling-the-mystery-is-3d-printing-food-safe/) is about a peer-reviewed study of food safety of 3d printed parts. Well worth reading, but they finish with:

"I have concluded that 3D printed parts can be cleaned to operating room standards. Does this mean they are food safe? Yes, and a small no. Yes, because they can be cleaned and can hold dry foods with no issues. Possibly No, because with liquids, they can cause the color additives and binders used in the filament to POSSIBLY leach out. It is rare, but still possible. Also, if the 3D printed item is to hold liquid, it is best to coat in resin and epoxy as stated above. "

They also say about lead contamination: "There is more lead in your tap water than a full 3d printed part. The area the food touches is not that much surface area, and the amount of lead in the area food touches is extremely low since it is a fraction of the 0.007 grams that could potently leach into the part. "

And: "The possible amount of lead being leached, or friction rubbed onto filament is very low. You will get more exposure to lead from changing your nozzle then from the filament. In fact studies done have shown that consumers who use the standard brass key, are exposed to 19 times the safe amount of lead."

 

[Nifty]

Someday we'll have SUPER AGI that will be able to quantify all the various risks (probability and severity) that we each go through every day.

... and I know I'll be one of many that will be surprised at how many things I do daily that are WAY more risky than the things I don't do because they are "too risky". LOL!

 

[Redbrickman]

The way I see it… Bacteria my arse, the temperature that the filament is extruded from the brass nozzle is way beyond that which any bacteria can withstand, and over the years I’ve been using my little 3D bits and pieces for all sorts of food items.. Daily..

It hasn’t killed me yet and it not likely too.. You guys are worrying about nothing..

Maybe that is why you you are off your rocker, has it made you even more crazy than you used to be?

 

[Artur5]

I wonder if that applies not only to @The Hat but to all of us.. For instance, I plead guilty of printing clothes pegs for hours at a cost far superior of what I'd pay for these things at the supermarket. That isn't exactly a sign of sanity.

 

[The Hat]

I plead guilty of printing clothes pegs for hours at a cost far superior of what I'd pay for these things at the supermarket

My other half is always getting me to print something or other that has broken, and like you I duly oblige, yes I could go and buy new ones cheaper, but that means driving around for ages looking for a store that has some stock..

There’s more satisfaction in designing and printing something than to waste time wandering around shopping centres, the one thing that’s more precious to me is time and that I can’t print..
P.S. The clothes pegs I make last longer than the ones you’d buy..

 

[Artur5]

Mine too, but I confess printing only the plastic parts and reusing the steel springs from broken pegs purchased at the store.