Micro gear pump experiment

[admin]

On request, this is an experimental gear pump made for a CN10 micro DC-motor. I had a box full of old small scrapped DC-motors and this is a pure trial'n'error-experiment. I did not get this version to work, but it might not have been the pumps fault actually.

On a later iteration I discovered that the water surface tention is so strong that even when the pump is submerged, it's not given that ti starts pumping. It still continued to rev, but if water was forced into it, it started pumping. However, I discovered this after designing a whole new impeller based pump so I haven't tested this one in that way.

The house is made for 1,6mm screws, and 1mm motor shaft. I used a piece of piano wire as second shaft. I used short pieces of aluminium tube 3,2mm OD as hose attachment.

I *think* this motor will fit, no guarantees though: https://www.ebay.com/itm/Mini-N10-Dual- ... SwcgNZDUp-

[joseamirandavelez]

Do you intend to use this in the boat?

[admin]

I guess you've already seen, but if someone else reads, yes. The latest version of the pump is used to pump cooling water for the motors.

Because of the fact that the pump is probably overkill for most people to put in the boat, I've published it on thingiverse: https://www.thingiverse.com/thing:2771937
There you have the latest version.

[kuwar]

Great information.Thanks for this great post.well done