single piston high pressure pump

thingiverse

This is the first version of this pump that is in a viable state . This pump makes decent pressure and will pump to a head of at least 14" 4.5m.this pump uses a piece of pvc pipe ( 1/2 "x30mm long) as the cylinder, but the model for the complete cylinder can be printed but its not recommended .There are 2 options for orings for the piston oring boss -3 or metric m12x2the connecting rod uses 6mm balls ( I used air soft bbs )there are multiple options for crankone piece printed ( needs 6mm stiffener shaft)12mmx1mm tube sleeved one piece crank12mmx1mm tube sleeved two piece crank.the 2 piece crank needs a 4mm screw to attach crank endfor sleeves I used stainless steal straws .for best results use the 2 piece crank .Oring required for head 18mmx3 ish or hose washer will do . locate with petrolatum jelly while installing .for valves the instructions are similar to this previous version.( store bought check valves can be used but at high flow aquarium valves fail .) https://www.thingiverse.com/thing:6370561other options are belt drive with 2 different motor pullysand a gear drivedrive sets and motor mount are meant for 550 motor with shield ( extra metal shell on motor) video: https://youtu.be/C4tyJ8lkrvU