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Spiraled drinking straw cup

by TBS, published

Spiraled drinking straw cup by TBS Mar 8, 2013
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Thing Info

12195Views 2694Downloads Found in Food & Drink
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Summary

This model is a drinking cup made out of one long, spiraled up drinking straw. If you suck on the end the fluid will go from the bottom of the glass down and spiral back up again till it comes out of the end.

It should be noted that cleaning this thing is a pain and it might not be completely watertight when printed with most consumer printers (however mine only leaks so slow it would take several hours for all the fluid to completely leak out).

Instructions

There is no support structure needed here. I printed mine with a layerheight of 0.1 mm on my replicator 2 and it works fine, I have not yet tried other resolutions. If you print it with transparent plastic, you can see the fluid run through the tubes.

It should be noted that cleaning this thing is a pain and it might not be completely watertight when printed with most consumer printers (however mine only leaks so slow it would take several hours for all the fluid to completely leak out).

Have fun!

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Thing Info

12195Views 2694Downloads Found in Food & Drink
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May 17, 2016 - Modified May 17, 2016
TBS - in reply to lfaitas

PLA is probably the best option in terms of safety, although you should be aware of any additives are added to the PLA you use. If you want to be on the safe side, make sure you use a food safe filament or a food safe coating.
https://all3dp.com/food-safe-3d-printing-material-filament-plastic/

THIS IS AWESOME!

Just need to figure out how to get the damn thing watertight but it's definitely an awesome idea!

May 11, 2016 - Modified May 11, 2016
TBS - in reply to crozone

Yes the leaking is definitely an issue... I haven't tried this myself but maybe setting a very low printing speed might improve the binding of the layers. Of course it will result in very long print time. One other strategy could be to use food safe resin like epoxy and blow it through the pipe to create a watertight resin coating (http://www.ebay.com/itm/EPOXY-RESIN-FOOD-SAFE-FDA-COMPLIANT-VERY-CLEAR-HIGH-IMPACT-COATING-24-OZ-KIT-/310123985135). If you try any of these, please let me know if it works!

Just so you all know, PLA is food safe but you cannot put it in a dishwasher!!! (High Heat)

does the straw work

It works, but when printed on most consumer 3D printers it may leak a little through imperfections between the layers.

I want to print this now!

SO COOL, never seen it before!

Wow, I'm can't wait to try and print this

Lol this really slows done my computer when printing, Tip to slicer users, print with .01 infill for no infill instead of 0, 0 will print nothing.

I bet this will be a pain to clean. I'm totally printing it anyway :) Cool idea.

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