Old style hand pump, designed to fit onto a large water bottle. Will work anywhere. Read the Bill of Materials
Old style hand pump, designed to fit o...nto a large water bottle. Will work anywhere.Tested it in the sink see the video below.
3d model print parameters
2 marbles or balls, find something to plug the hole!
Both need to be over 8mm in Diameter.
One of the balls can be up to 1in. Though smaller the bet...ter.