Hydraulic Gear Pump Remix

The original hydraulic pump by Noratlas is a cool design, but I wasn't able to find some of the required components for assembly. Therefore, I did some tweaks - see the list of changes compared to the original design.

Simply print the housing, gears and tube adaptors using some wear-resistant material (PETG works great) and the seals using FLEX (I used TPU 95A). Glue the tubing connectors into place with epoxy resin, and assemble everything using M5 screws. Tighten two lock nuts against each other on the axle to give the cordless drill/screwdriver a firm grip.

Tweaked the design to use M5 screws everywhere and to easily attach to standard-issue rubber tubing without requiring additional connectors. Added seals that can be printed with TPU.