Standard Mason Jar Bong

thingiverse

For clarification, the bottom is not completely flat, it is concaved on the edges like a normal mason lid. This is an effort to improve the Mason Jar Bong concepts with a curve on the tube. All you need is a 70mm mason jar and a 9mm bowl piece. 9mm bowl piece https://www.thingiverse.com/thing:6151778 The only mirroring, I used was the measurements and I reassembled a 9.45 cylinder quarter for a 9.45 cut but the actual model I did not use mirroring on. There was some seeming criticism so I've been further experimenting. If you want to make a pipe like one of mine the hole for 9mm is 9.45mm. I am pretty sure it needs .335 to break even and an extra .215 to slide without excess friction. https://youtu.be/YmSp3y6XctI note: I am really glad I didn't give this pipe a name [becuase it's only half the bong] but if you were to call it something as a short it would be a periscope. The smaller the lid clearance for its lip the better. This is the only size I can fit everything without the bowl piece intersecting with the mouth tube.