Hello to all lovers of craftsmanship, and here came a hot time. At such a time of the year, you want the maximum amount of cold, cold drinks, ice cream and other products are used. Today we will look at how to make a device that allows you to make ice cream without leaving your home. Homemade easy to assemble and does not require large investments. The device forms cold due to Peltier elements, as a result, the working plane is cooled to a temperature of about -20 ° C. For the effective operation of the elements, the design provides a liquid cooling system for the hot side of the elements. If you are interested in the project, I propose to study it in more detail!
Materials and tools used by the author:
Material List:
- 4 aluminum radiators for liquid cooling;
- ;
- hoses;
- ;
- aluminum sheet (or other material for the work surface;
- plywood or similar material;
- brass tees;
- thermal grease;
- double-sided adhesive tape;
- self-tapping screws.
Tool List:
- soldering iron;
- drilling machine;
- soldering tools;
- a circular saw or other tool for cutting wood;
- ruler;
- marker;
- stationery knife;
- Bulgarian.
Homemade manufacturing process:
Step one. Principle of operation
At the heart of the homemade product are 4 Peltier elements, on the one hand such an element is heated, and on the other it is cooled. The more efficiently heat is removed from the hot side, the more efficiently the temperature decreases on the cold side. For a good heat dissipation, the author made a simple liquid cooling system, as a result, the working surface is cooled to a temperature of about -20 ° C. Ice cream is poured onto the work plane in liquid form, then the machine turns on and the ice cream freezes. As a result, it remains to be cut with a special knife, we get a kind of rolls.
Of course, aluminum is not very good for health, so it is better to make a working coating of stainless steel.
Step Two Set Peltte Elements
To begin with, we will make a working plane, the author decided to make it from aluminum. We cut out a piece of sheet metal of the shape necessary and install elements on it, they must be fastened with the cold side. On both sides the elements must be greased with thermal grease for good heat transfer.
On top of the Peltier elements we install radiators through which water will circulate. Between each other we glue the radiators with double-sided tape.
Step Three Housing
We make a case for the device, here we need plywood or other similar material. We cut the plywood into pieces of the desired size and assemble the body. For fastening, the author uses self-tapping screws.
Step Four Splitters
As a result, 4 radiators are installed in the design, each radiator has two tubes, respectively, we have 4 tubes for water inlet and 4 for outlet. To connect all these tubes we need to make special splitters, on each such splitter there are 5 fittings. The author collects the necessary parts from brass tees, you need to solder two additional tubes to them. To do this, drill holes in the tees and solder the tubes cut off from the other tees.
Step Five Assembly and refinement
For assembly, we need to connect the hoses through which water will circulate. It should pass through the tubes to the radiators, and then go out and go back to the tank where the pump is. However, the system can also be connected to a water tap, but here it is important not to make the pressure too large.
We also solder the wires to the Peltier elements, the power source is a 12V battery.
Pour liquid ice cream onto the surface, spread, crumble chocolate and so on. Next, we start home-made, after a while the ice cream will freeze. Now it will need to be cut off with a special knife, in the end we will get rolls.
As a modernization, the author installed a work plane with sides so that nothing would drip on the table and device.
That's all, homemade works fine, consumes little electricity. Now living on hot days will be much more comfortable and tastier. On this project is over, I hope you liked the homemade. Good luck and creative inspiration, if you decide to repeat this. Do not forget to share your ideas and homemade things with us!
