» Fixtures How to make a magnetic contactless mixer yourself

How to make a magnetic contactless mixer yourself


Good day to all dear friends! In today's article, I would like to show you and talk about a rather interesting idea homemadewhich will be very easy to do do it yourself.

I think many have encountered a situation where it was necessary to mix something, but this must be done very carefully, or without interacting with the solution. In chemistry, a very interesting device is used to create solutions, this is a kind of stand on which a vessel with liquid is placed, the stand is turned on, and, miraculously, the liquid in the vessel begins to rotate, creating a small whirlpool. After which, it becomes much easier to make a solution.

In this device, there is nothing beyond complex and unusual, but it will not be superfluous, on the contrary, it can become your assistant, both in the kitchen and in your constant experiments and deeds.

Well, well, I think you should not delay with a long introduction, we drove.

And so, for this device we need:
- 9 volt crown battery
- small electric motor
wire
rotary switch based on a variable resistor
off button
-corrugated cardboard
-Neodymium magnets
- small sheet of plywood
connector for crown

Of the tools we will also need:
soldering iron
hotmelt
electric drill
pencil or marker
line

Well then, let's begin. First of all, it is necessary to solder all the electrical elements into an electric circuit, or rather: solder the connector from the crown to two wires, which, in turn, solder to the switch and rotary switch (as I understand the author of the homemade product, ordered it on Aliexpress), the usual switch is also solder to the rotary, well, and solder the motor to the voltage output on the rotary switch.

We are testing the electrical circuit and if the motor speed is regulated, and from the button it turns on and off, then everything is done correctly and you can continue:




Now take corrugated cardboard, a ruler and a pencil. With their help, it is necessary to draw several details on a cardboard sheet. There is nothing complicated, just, for a start, cut out a rectangle from a sheet of cardboard, and then draw it as shown in the photo below. Then we cut out the resulting details. Everything should turn out as in the photo below.

Then we need to glue all the resulting parts into one box. This is also not difficult to do.By the way, the author of the homemade product uses double cardboard for greater reliability of the design, if you do not have such a cardboard, you can simply glue a single-layer cardboard in two layers, it will be even stronger.

It is also necessary to make two slots in one of the walls of the box: one rectangular for the switch and one round for the variable resistor. We insert the parts into our holes and install the whole electronics inside the box:








We insert an electric motor into the remaining cardboard part, having previously cut a hole into it for it, do not forget about hot-melt adhesive.
We cover the whole structure with this billet and glue it with hot glue:


And so, now you need to take a sheet of strong plywood. Using a ruler and a pencil, make three marks at a distance of 17 mm from each other. Then, either with a thick drill or with a special nozzle on the drill, we drill two through and even holes. It is important to note that the holes need to be made at the two extreme marks, leaving the central so far alone. After drilling two n \ small holes, we take a larger nozzle (I don’t know the name, I know, please write in the comments) and drill a new round workpiece exactly in the center. It should make a small plywood circle, with two round holes opposite each other. You also need to cut another one of the same circle, but without two holes on the sides, with only one in the center. These two plywood blanks must be glued together with a paint or PVA glue, and in the side holes you need to insert and glue on a neodymium magnet, but with opposite poles up:







The previous plywood blank must be put on and then glued to the axis of the electric motor in the main structure.
Testing if it rotates smoothly, then everything is done correctly and you can continue:


All of the same corrugated cardboard, we make a cone-shaped blank that needs to be glued over a plywood blank with magnets, but it should still rotate freely:

Decorate homemade:

Now we need a small metal wire or just a paper clip. A wire or paper clip, you need to twist into a ball:

That's it! A simple contactless stirrer is ready and you just have to test it. To do this, just take any small vessel with liquid, throw a twisted paper clip into it, turn on the unit and that's it, you can fill in sugar, for example, and it will mix itself. Such a device will be very useful to chemists and just housewives in everyday work, the thing is really useful and I think it can even surprise someone.




Here is a video from the author with a detailed assembly and testing of this homemade product:

And if you have long wanted to get a good headset, then please rate my review for good model (of course, who wants):

Well, thank you all for your attention and good luck in future projects, friends!
6.5
7
6.9

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11 comments
And they drove very quickly, without any wheels. A disk with a center offset was mounted on their motor shaft.

No no!!! There, in fact, the gravitational field was changing !!!! They explained to me recently ....
The Krona battery with such a motor will work for about 15 minutes and mustache. You need to choose a lower voltage motor and use 2-3 alkaline batteries connected in series. Size AA, or better C.
And with a clip, the question of chemical inertness is solved simply.

For instance. Take a small piece of hot melt glue and fuse it into it, so that nothing sticks out. I smell when I work with this glue, I think that it is based on polyethylene, well, like lids for cans. Almost sure to withstand both sulfuric and nitrogen. And even royal vodka.

And one more thing. We solder the wire into a small glass ampoule. Then surely nothing will destroy but hydrofluoric acid boss
And I guessed why he needed corrugated cardboard and strong plywood. Without them, the design will quickly go on the table from vibration and a glass on the floor xaxa Well, if it contains tea, but if, for example, sulfuric acid with potassium dichromate?

As a child, I collected the so-called VIBRACES. And they drove very quickly, without any wheels. A disk with a center offset was mounted on their motor shaft. And in this homemade product, there is no guarantee that the disc with magnets is perfectly balanced on the shaft. boss
"Electric pumps" (Additional cooling system pumps) in machines are so arranged. I once bent on the Omega, I changed it, and, of course, I took the old one apart ...))) In one compartment there is an engine with powerful magnets on the carousel, in the other there is an impeller on the axis and also with magnets. No glands needed ...
A typical mixer from a chemical laboratory, only there something is thrown (lies?) Into something ferromagnetic (a piece of iron) in a chemical-resistant shell.
Guest Vitaliy
I agree about the reprint. Here you can make a claim to the author of the site for tracking plagiarism. Although the author still independently made this product.
For himself, the author must answer why it is stainless steel (chemistry), and whether his product (physics) will work with this material.
As for the Russian language, I’ll say that the author clearly got to the wrong site. Sometimes it’s easier to make a product than to express an opinion about it (especially considering the new attitude to the letter ё)
Guest Leonid
Where are you flaunting all these connoisseurs of Russian?
Guest Igor
What kind of chemistry is it, if you need to throw a paper clip there?!?!?! Entertaining physics for young children ...
Yes, and reprinting someone else's post does not do honor, given the complete ignorance of the process and tool ...
Guest Vitaliy
with chemistry is weak, still not stainless, not new, but originally executed, in such matters the main thing is to put forward an idea that can always be transformed taking into account experience and knowledge, let’s just use a coil whose poles change, and it will be a washing machine
And so, now you need to take a sheet of strong plywood
What if the engine is in the corrugated board?
solder to the switch and rotary switch
???
Such the device will be very useful to chemists and just housewives in everyday work, the thing is really useful
Such - I doubt the corrugated cardboard is short-lived! smile

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