small water pump

cults3d

I used a 380 motor, one I salvaged from an old printer. The inlet fits directly into a soda bottle and the output measures 8mm OD with a 6mm ID. With the second of three blades, it outputs approximately 1.7 liters per minute, which is the only speed I tested. To seal it around the edge, grease is necessary; I use Lucas oil red and tacky. The pump was printed in PLA but I recommend printing it in ABS or a more durable material. It's held together by M3 bolts and nuts and I ran the motor at 12v. Also, I'll post a video of the pump working within the next couple of days. Thanks to Frankvdh's suggestion, I've created a new housing that requires no supports. Here is the video: https://youtu.be/gwLyB70k8wY