{"id":720,"date":"2024-02-19T21:55:47","date_gmt":"2024-02-19T20:55:47","guid":{"rendered":"https:\/\/invar.nl\/?p=720"},"modified":"2024-02-19T21:55:47","modified_gmt":"2024-02-19T20:55:47","slug":"overhead-stirrer","status":"publish","type":"post","link":"https:\/\/invar.nl\/?p=720","title":{"rendered":"Overhead stirrer"},"content":{"rendered":"\n

Another fun project idea: making a DIY overhead stirrer. Something like this<\/a> but simpler.<\/p>\n\n\n\n

I think I already have a suitable 12VDC reduction motor somewhere, and I have spare adjustable DC power supplies (12V 2A and 12V 5A) that I could use to control the speed. I would need a chuck and something to attach the motor to my lab stand. Also, a stirrer attachment.<\/p>\n\n\n\n

I can’t find my big gear motors right now, but I do have a cute little 6V 30 rpm one and a 24V 18 rpm one. Plenty of torque, but slow and I think they’re only about 3W continuous. <\/p>\n\n\n\n

Ideal would be something like the one in the video, which is the larger ~15W continuous cousin of my mini reduction motors. I guess the 470 rpm one would be nice. I could easily attach a drill chuck to the 8mm shaft using a JT0\/B10\/B12 connecting adapter, then I don’t have to fabricate anything like the guy in the video did. I think B12 is the right size if I mainly want to use it with 6mm and 8mm stirrer attachments. Either that, or an M10 adapter with an M10 chuck.<\/p>\n\n\n\n

I’m going with the M10 option. It has better reviews, it’s not missing the set screws and I like the chuck better.<\/p>\n\n\n\n

For attachment, I think I will go with the very simplest option first: just clamp it to the lab stand with a lab clamp straight onto the motor. The motor would be facing sideways but that doesn’t matter. If I like the setup, I might find a better solution. Perhaps a piece of 12mm rod with two hose clamps or something.<\/p>\n\n\n\n

I’ve ordered a reduction motor, M10 connector, 1.5-10mm drill chuck and stainless paddle stirrer for \u20ac25. That should be everything I need, besides the stand, clamp and adjustable power supply I already have.<\/p>\n","protected":false},"excerpt":{"rendered":"

Another fun project idea: making a DIY overhead stirrer. Something like this but simpler. I think I already have a suitable 12VDC reduction motor somewhere, and I have spare adjustable DC power supplies (12V 2A and 12V 5A) that I could use to control the speed. I would need a chuck and something to attach […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24,40],"tags":[],"class_list":["post-720","post","type-post","status-publish","format-standard","hentry","category-chemistry","category-uncat-chem"],"_links":{"self":[{"href":"https:\/\/invar.nl\/index.php?rest_route=\/wp\/v2\/posts\/720","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/invar.nl\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/invar.nl\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/invar.nl\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/invar.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=720"}],"version-history":[{"count":4,"href":"https:\/\/invar.nl\/index.php?rest_route=\/wp\/v2\/posts\/720\/revisions"}],"predecessor-version":[{"id":725,"href":"https:\/\/invar.nl\/index.php?rest_route=\/wp\/v2\/posts\/720\/revisions\/725"}],"wp:attachment":[{"href":"https:\/\/invar.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=720"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/invar.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=720"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/invar.nl\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}