This is a centrifugal pump that only needs to be primed before pumping begins then it can continue on it's own.
To make this pump you will need:
-Threaded rod (driveshaft)
-Sheet of neoprene
-2x sheets of plastic
-1x plastic disc(laser cut)
-bottle neck and bottle cap
-19x nuts and bolts
-3x wooden blocks(moulds to be vacuum formed)
-thin sheet of aluminium
-hot glue gun
Step 1: Backplate
1) On the back plate mark out where the 3 inner components (impeller and 2 blocks) are going to go, as well as the outer shape of the pump.
2) In the centre of where the impeller will go, mark out and drill a single hole for both the inlet hose and driveshaft.
3) Attach hose adapter through the inlet hole.