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Picture of 3D Printable Reusable Water Bottle
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Being able to 3D print a water bottle would be super cool, so I'm going to show you how to create the model!

I'm going to show you how to make a 3D printable water bottle using Autodesk 123d Design desktop version! It's awesome, download it here http://www.123dapp.com/design 

After thinking through several water bottle designs, I concluded that doing it this way is one way to make it 3d printable without having a screw on top. The two plugs on the top block two holes: One for drinking from, and another larger one to make cleaning the bottle more convenient. Due to the small decrease in the size of the plugs in relation to the holes, being a fraction of a millimeter smaller, the plugs should fit snuggly.

I attached an stl. file with the design. It's in separate pieces in the model, so that you can print it then put it together

First, download 123d Design, start a new project, and change your units to centimeters

Step 1: The Body

To make the body:

1) Create a cylinder from the primitive shapes that has a radius of 3.5 cm and a height of 20 cm

2) Use the shell tool to hollow out the cylinder by selecting both the top and bottom bases with the Ctrl key. Make the thickness 0.5 cm

3) Create another cylinder with the same radius of 3.5 cm and a height of 0.5 cm

4) Tap the bottom of the smaller cylinder to the top of the larger cylinder

5) Create another cylinder with the same radius of 3.5 cm and a height of 1 cm

6) Move the large cylinder up 1 cm

7) Tap the top of the new smaller cylinder to the underside of the larger cylinder

8) Use the combine tool to combine all of these tapped objects into one object: the body
 
cdastan4 months ago

Has anyone tried making custom slicing profiles for this print on the MakerBot Z18? I'm running some experiments now with no infill, 3 shells, and everything else standard 0.1 mm resolution for MakerBot PLA. I'm afraid of printing the top of this water bottle because at 100 micron resolution and 3 shells I'm not quite positive if there will be enough structural integrity to properly print the top as it overhangs and I don't want to print supports, raft or use any infill so this can truly be a water tight water bottle prototype. Any advice is welcome as I've been scouring multiple blogs and MakerBots custom slicing advanced settings documentation pretty in-depth over the past week. Thanks!

ClairePawlewitz (author)  cdastan4 months ago
I've never tried and I'm not aware if anyone has tried. I think there are other issues such as whether or not it would be safe to drink water that has contacted the filament plastic. To be honest l made this a couple years ago as a younger teen, not exactly understanding the logistics of 3D printing yet

We've decided to print it at a lower resolution (300 microns or 0.3 mm). We had to angle the bottle and still use supports because printing the bottle straight up as it is in the above model simply does not work because of the extreme overhangs. I've attached a photo of the printed caps with rafts and supports so obviously we'll be cleaning it up shortly - hopefully the cleaning process still results in a tension fit when the bottle itself comes out. If you print this on most traditional consumer 3d printers you'll need to do some fine tuning and adjust the orientation to the build plate. We also hollowed out the cap for the "cleaning access" stopper to save on material so it's highly likely you should bring this into another CAD program to adjust it as needed based on your printer and filament. As far as food safe, we're printing this bottle over at STAX3D Printing on behalf of someone else for part of their school project so we were never instructed that it was to be safe for drinking. If you want to see more about the food safety topic with regards to 3d prints you can check out a few sites I just found - http://forums.reprap.org/read.php?1,164077,168351

-http://reprage.com/post/36869678168/is-3d-printed-...

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yami7592 years ago
I don't think many 3D printer filament types are food/water safe...
You can get Food Grade PLA, Extruder and hot end parts should also be made of aluminum and/or stainless steel to avoid lead contamination.
ClairePawlewitz (author) 2 years ago
Good question, some kinds of filament are safe, such as specifically food-safe filament, but otherwise it's not known for sure, or that i could find. You could treat the print in some sort of food safe coating though
spyder20212 years ago
great job on the 3D model
spyder20212 years ago
just wondering is the ABS that the printers print out safe enough to use as a drinking bottle?