This is a printable model of a vintage deep well water pump. It is based on a Meyers pump with many changes to the geometry for ease of design and to fit my personal tastes. When printed, this pump can assembled with a few non printed pieces and made to be semi functional. Obviously without a cylinder it wont actually pump water but the handle can be pumped and the connecting rod will reciprocate.

There are separate thing files for each individual piece of the pump. I do not know the actual terms for the individual parts so I have them labeled as the name of the .stl files. (Note that the part labeled "Pump" should be "Pump2.0" and is the same as "Pump2.0 Top" and "Pump2.0 Bottom" with the exception of those are the pump split in half for easier printing) The photos should give you a pretty good idea of how they are assembled.

This model was originally designed in inches at near full scale. When it was exported, everything was converted to metric measurements so the pump will be full scale when imported into a slicer. This mean it will be far too large to print on most consumer printers. I did not intend for it be printed full scale, and I personally printed it at 25% scale. At this size, an old metal coat hanger worked pretty well for the necessary pins and the connecting rod, though any wire or metal round stock of the same or slightly larger diameter would work.

There are two different versions of the pump attached, one as it was originally exported in one piece, and another that was split in half using Meshmixer. I printed the pump in two halves, with the flat side on the bed and supports enabled. I felt this was the best way to ensure I could easily remove all supports from the inside. Of course, this means the two halves will need to be connected together. I used a thin bead of hot gun and trimmed away the excess with a razor blade. If you do not care about the pump being hollow, you could print it as a solid piece and drill a hole down the center if you want a reciprocating connecting rod. Both versions of the pump are hollow, so you will need to use a program such as Meshmixer to make it a solid if that is your intention.

I printed every part with a raft, as I do with almost everything I print. I personally used 50% infill but that is excessive. I oriented the part that holds the pump and that the handle hinges on with the long flat surface faced towards the bed. This means it used quite a bit of support, so I might recommend trying to print it on its side to minimize the support material needed. Play around with speeds, infill, and orientation, I'm certainly no expert so don't feel the need to follow my lead.

Last I took a piece of 7/16" steel round stock (a little small, but it was what I had on hand) and drilled it out to 5/16" to make a miniature pipe for the pump to stand on. I hot glued it in place. A piece of tubing would be better suited so that you don't have to drill it out, which could be tricky if you don't have a lathe or drill press.

In the future I will model the two piece base that surrounds the pipe where it would enter the ground and upload the files here to complete the mode.

Edit 5/4/2020- Someone made a comment regarding some potential missing pieces and I wanted to clear up any confusion. This is a model of a deep well water pump (as I mentioned in the first paragraph.) This style pump typically uses a cylinder that is buried underground, and not an internal pump mechanism. You are most likely thinking of a pitcher pump. There is a model available on Thingiverse for this style pump if that is what you are looking for. In the future, I plan to build a miniature cylinder to go along with this design.