Coffee Cup

by barspin, published

Coffee Cup by barspin Oct 3, 2013
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"Coffee tastes better in a 3D printed cup"

The primary goal of this project was to see if a 3D printed cup could withstand the 97 ° C hot coffee. And it did!

PLease note that I did not actually drink out of the cup, i have no idea what's going on in there when the hot coffee and printed nylon come together, it simply does not feel safe (yet).

This print was done in Taulman 3D Nylon 618.

As always i have included an STL and a STEP file. TopSolid 7 sourcefile is also available.

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Coffee Cup by barspin is licensed under the Creative Commons - Attribution license.

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Alot of extruders actually have lead in them so the filament you're using isn't the only problem, alot of companies making exturders use lead because it makes it easier to work with, look into your extruder etc aswell as filament.

Thank you for this. Most posters apparently don't know this x/

Print it in PLA it would be food safe :)

All of the filaments here: http://www.makergeeks.com/fdaapfi.html are actually fad approved. You should try it with one of these.

I read somewhere that the nylon release cyanide, so beware that ...

Mar 14, 2015 - Modified Mar 14, 2015
magu - in reply to kguttas



Plastics release HCN during pyrolysis—disintegration under extreme heat—which is why firefighters are exposed to great risks when plastic floors, wiring et cetera goes up in flame. If printing (at approx. 250 C) with made-for-printing nylon filament in the above test didn't emit, even detectable traces of, any HCN—despite safety guidelines allowing for a few PPMs of HCN—pouring a hot liquid into the cup won't release any cyanide.

Nylon is probably your best bet in doing stuff to be in contact with food stuffs in general. It's inert to the body and resistant to temperature. Heck, Taulman is even developing FDA approved filaments with batch traceability, et cetera.

Despite the current Nylons from them not being FDA approved, I can't see why they wouldn't be completely safe. It's just that getting FDA approval costs a fortune.

Sep 24, 2014 - Modified Sep 24, 2014

Nice design, will print my own cup lol. What extruder/bed temp and speed did you use.

Does it taste like plastic? Been meaning to make some of these too but am weary of anything that's going to change the taste of the most important beverage on earth!

Did not drink from it, it´s yet to be determined if its hazardous or not.

I've had your coffee and I'm not sure what's in it, regardless of the cup. ; )
Great print, as always...

You know there´s nothing wrong with my coffe, it´s awesome! =)

You have GOT to print a few of those cups in disolvable filament!
Then leave them at random work places :)

Contrats on the print quality - its not easy to print something watertight :)

Watertight is easy, print in ABS swirl some acetone and pour it out. Gives the coffee a numbing zing!