magnetic Stirrer for army painter bottles

thingiverse

I ended up designing my own steer, with the intention of making it as minimalistic as possible. because those that I could find online were either too expensive, too big or required an electrical outlet, etc. This one just uses a simple regular 9V battery, and has no visible ports, on/off buttons or any of such. everything is totally concealed into a very slick design. It turns automatically on when placing a paint bottle on top and then automatically off when removing the bottle again, to preserve battery. Besides from the printed parts, what you'll need in addition is magnets, a tiny 9v fan, a 9v battery, and a 9v battery connector, superglue and some copper tape or something else which is electrically conductive adhesive which can carry current. I used the copper tape as a thin layer conductor, but you may use any other idea of course. - tiny 9v fan (25.5x10mm) https://www.ebay.com/itm/304165517410?var=603274137473 - magnetic stirrer rod to put inside the bottle (I'm using type A10 in the video, but I think B20 is a better fit for these bottles and this job) - https://www.ebay.com/itm/164833070900?var=464320591801 - magnets (8mm x 3mm) https://www.clasohlson.com/no/Neodymmagnet/p/31-1467 - copper tape (or something else) https://www.clasohlson.com/no/Kobberteip-/p/31-9032 - 9v battery connector https://www.ebay.com/itm/201596812401?hash=item2ef01b3c71:g:H9AAAOSw9eVXUbDm&amdata=enc%3AAQAHAAAA8K6aZQbEmaDEWx0CGmBB9ir956IN08TOhwHSjhnfhS2737VR09UL57LVuA15%2FacmnL%2B%2FVlGNsxWETTGb3rIK%2F6C9QmF90m8KzpvIUVtI%2BLBhrVsOBIc8Iy1Cxb70Uy8qASJGBosmoqQF47pG74xI4TMrAPYx49%2FzuMPM98dgcOR4yw5DojsRPJD0IXuqc0%2F5aGYuTGkVroRwof4Z9siJaGn8bolqcUg%2F%2Fy2JF%2BqIkCEqzTpYjKBJuWwsA21JLxKgTL5SOnQqVdBJe01SZJafWw%2B7n6FKRlyemSb6yYKdP5LjanT5y7uFog0d1OBhkR1yeQ%3D%3D%7Ctkp%3ABFBM-Mi0hKJg - any regular 9v battery - any superglue - A spring (should be about 1 cm wide and no more than 5 cm tall when completely squashed together) The file names for the print should imply what goes where. I glued the two magnets (one negative and the other positive side up) into the dedicated holes in the part called magnetic holder, then glued the magnetic holder on to the fan itself, further glued the fan to the fan floor part, then put the + and - cable from the fan through the small hole in the fan floor, and glue the fan hat on top of it all, now strip the plus cable, and stick it underneath the fan floor using the copper tape. then stick the whole thing into the body case part. Now take the + and - cables from the battery through the small hole in the battery separator and connect the minus cables from the fan to the battery, and strip the battery + cable and stick it to the top side of the battery separator using cobber tape, then place the spring in the center hole of the battery separator, then place the battery separator inside the body case and then the press the battery inside too under the separator again to keep it all in place, finally screw the big bottom lid in place to seal it all, now it should all work as magic. To fit the battery might be a bit hard depending on the cable connector you are using, personally I used a chop stick to hole the battery separator down (squashing the spring) into the body case, then use the other hand to place the battery, it goes in more easily holding the flat side between your index finger and thumb, then start by inserting the bottom of the battery inside the case first before pressing the head down as well, then you have to flip it over there after on its back so that you may fit the lid. if you're having problems, like the fan not powering on or not powering off properly, try adjusting the bottom lid by unscrewing it a bit or tightening it a bit. If that doesn't work, you might need to adjust the length of the spring a bit or maybe add some more layers of copper tape to make them actually touch when the spring goes all the way down. Here is a link to a video that shows how it works: https://photos.app.goo.gl/w43EvujGqvU2PwQFA Please feel free to Paypal me if you like my design or find it useful :) https://paypal.me/snisk