*New Sizes* "Rock-bong" Sleek Gravity Pipe

thingiverse

Edit 3/1/2018: Introduced two new versions in smaller sizes. Tall and Grande. Tall: 172mm Grande: 180mm Regular: 210mm If you're really serious about printing the regular size and you have an Mp/Wanhao i3, use these: https://www.thingiverse.com/thing:1444979 (extender for front braces) https://www.thingiverse.com/thing:2476090 https://www.thingiverse.com/thing:2476118 (extender with rear braces) This is a gravity bong designed for people who want a more permanent setup that prevents their home from looking like a cluttered mess. It's crucial to stress the importance of using PLA, which is made from plants and not tar. I believe this is the world's first 3D printable gravity bong, although I'm not entirely sure. This is my very first design. Here's a working stem: http://amzn.to/2ijbgKn Stem diameter: 9mm Everything you need to know can be found here: https://youtu.be/KKl8na4oZbM For this model, - Cover the mouthpiece with your hand, submerge it in water, light it up slowly, and then lift it up to draw smoke into the chamber. You don't need a flame for more than a couple of seconds to get it ember. Do not pull out of the water at all during this process. This will only result in losing your smoke. - Remove the stem and cover the hole with your thumb. Use the mouthpiece to inhale the smoke as you descend the bong back into the water. Cough and enjoy. Edit: Made slight adjustments to the air paths for better functionality. Mostly the same, but I made the base perimeter a tiny bit flatter. Edit 2: Added an alternate version with a handle.