Hello friends!!!
I propose to consider a machine for serving carbonated drinks. The drink is served after pressing the button, this device works on ordinary batteries, and you can choose drinks to your taste.
This soda machine is relatively easy to manufacture and it will certainly interest and surprise your guests.
Materials and tools.
-Cardboard (can be replaced with plastic)
-Stationery knife
-Glue gun
-Buttons 3pcs.
- 3pcs mini air pump
-Cutting
-Oxygen tubes
- Terminals for wires
Manufacturing process.
An ordinary cardboard will serve as the body of the machine. It will be good if you find already painted cardboard, or can be made from ordinary and then painted.
Attention, all sizes of cardboard indicated in the article are approximate and may vary within 0.5-1cm. The final dimensions are better determined during the assembly process.
To make the case, you need to take two sheets of cardboard measuring 38cm x 25.5cm. Cut rectangles 28cm x 10cm in size as shown in the photo, on both sheets.
Now we need to take another sheet measuring 38cm x 25.5cm, this sheet will serve as the basis for our machine. The author glues two preceding sheets to this sheet with a glue gun.
We take two more pieces of cardboard, 38cm x 10cm in size and glue them one at the bottom of the other at the top.
The next piece of cardboard measuring 27.5 cm x 38 cm, the author closes the front of the machine.
Take two more pieces of 5cm x 38cm. the first segment will close the front at the bottom of the machine.
In the second segment, the author makes three holes for the buttons and glues to the top, pre-installing the buttons. Buttons are available at auto-shop, on the radio market or aliexpress for example or
Further, the author attaches the air pumps to the casing using the same thermal glue. Such pumps are sold at pet stores in aquarium products or on aliexpress.
The pumps are different, here are a few options,,
At the next stage, the author collects a tricky electrical circuit of the device.
It connects the positive contacts of the pumps with the contacts of the buttons, connects the remaining free contacts of the buttons together using pieces of wire and connects it to the plus of the power source.
As a power source, the author uses a set of four AA batteries. Since air pumps are different (3v, 6v, 12v), the power source is selected for the specific type of the selected pump.
The author connects all the negative contacts of the pumps and connects them to the negative of the power source.
This completes the electrical part.
The next step will be to connect the tubes serving the drink.
The author makes three holes in the upper part of the machine, into which he inserts segments from an oxygen tube with a diameter of 10 mm and a length of about 30 mm. Fastens the ducts with thermo-glue.
To serve the drink, the author uses 6mm oxygen tubes. The author puts pieces of tubing about 10-12 cm long on each of the pumps.
He makes two holes for the tubes in the bottle cap.
A tube connected to the pump is inserted into one hole, a tube about 40 cm long is inserted into the second hole.
One end of a long tube is inserted into the feed opening of the machine, the other end will be in a bottle of carbonated drink.
The holes in the cover should be sealed with glue.
This operation must be done for each pump. When connecting the bottle, the end of the long tube should reach the bottom of the bottle, the second tube (short) should be above the liquid level in the bottle.
Now you can connect the bottles with your favorite drinks and cover the machine with the last piece of cardboard 38cm x 25.5cm.
For convenience, you can stick a label with the name of the drink on each button.
Well, that's all the machine is ready, now you can enjoy the tastes of various drinks.