So a while ago i ordered stuff to build a mag mixer for mixing e liquids with, and besides from needing some stronger magnets or a beaker with a thinner buttom its done and the first tobacco liquid is in it mixing right now!
Good job on the build! Why the duplicate switches and speed controllers???
Here's a place for incredibly strong rare earth magnets - https://www.kjmagnetics.com/
I would recommend a glass flask or beaker, and get the magnets as close as you can to the top. You can also use a nickle coated mini bar or rod magnet in place of the stir bar if you need more attraction.
The least expensive magmixer (new, buy it now, free shipping) as of today on e-bay is 85 bucks. With heat, is still under 100 bucks. Prices are coming down on these, comparable to a decent UC. You may get a fantastic deal on a used one with a bid. Watch out for the shipping charges though!
I think what you would get for 85 bucks is exactly what Dusif made, a computer fan with magnets and a speed control. A "lab" version will not have the "computer fan" motor, but a beefed up motor with mondo magnets, thus the added expense.
Theres double switches and knobs because theres a heater on there as well ... Dont know the exact temp but it goes to 135 degrees celsius
Nice,
This is what I currently use, you can find it on Ebay for around 270'ish
Hotplates / Stirrers : SCILOGEX MS-H280-Pro Circular-top LED Digital Hotplate Stirrers
I only used 20$ in building materials... Ish... Maybe 25
Def. a rocking job but...I recall doing a thread about this a while back (little replies) but it listed in there a temperature table and how it affects the flavorings, I'm more in to the science of mixing eliquids as there is a method to the madness.
Besides the hotplate feature looking in to building one myself or buying one the magnetics on the one bought are pretty heavy duty and they aren't magnets as you know them. The one I've got are electromagnets so when its turned on you don't get the stir bar off without some force (helps hold the beaker on and in place). Just things that you need to know when/if your going to build your own.
Remember to check if the motor can turn with all that pull then... If i get my bar too close my fan cant turn with the big bar