Jig for drilling tanks

****This version of the design has not been tested. Print at your own risk. I did print the previous version of this design and make changes.**** **27Feb25 update: the water comes out too fast. Top channel removed and bottom channel made 25% smaller. Drilling glass is dangerous and should not be attempted without the correct safety equipment and in the correct environment. If you don't know what you are doing then don't do it! The idea is that you would take an empty 12 or 16.9 oz. soft drink (Diet Coke will be tested) bottle and drill a ¼" or larger hole in the lid. Then cut the bottom off of the bottle. Determine which corner you want to drill the hole in when looking at the tank from the outside (left or right). *There is a picture showing this variable. Determine where you want the center of the hole to be (in mm) from the side of the tank and the bottom of the tank rim. Then press the “Customize” button and enter those three variables and press Enter or the “Generate”