How to make a mini fridge . pls give berif ans only .can be rated as BRAINLIST answer
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Parts :
1. Thermoelectric Cooler Module ( Banggood )
2. 4 mm Acrylic Sheets ( Amazon )
3. Arduino Nano ( Amazon )
4. Relay Module ( Amazon )
5. LED ( Amazon )
6. LED Holder ( Amazon )
7. 1K Resistor ( Amazon )
8. Rocker Switch ( eBay )
9.DC Jack ( Amazon )
10. Perforated Board ( Amazon )
11.Hinges ( Amazon )
12. Door Handle
13. Rubber feet ( Amazon )
14. Foam Boards ( Amazon )
15. Super Glue ( Amazon )
16. Glue Sticks ( Amazon )
Tools :
1. Jigsaw ( Amazon )
2. Dremel Workstation ( Amazon)
3. Dremel Rotary Tool ( Amazon)
4. Soldering Iron ( Amazon )
5.Glue Gun ( Amazon )
The heart of this Refrigerator is a Thermoelectric Cooler Module. Thermoelectric coolers operate by the Peltier effect The device has two ( Hot and Cold ) sides, and when a DC electric current flows through the module, it brings heat from one side to the other, so that one side gets cooler while the other gets hotter. The "hot" side is attached to a heat sink so that it remains at ambient temperature, while the cool side goes below room temperature.
A thermoelectric module consists of an array of p- and n-type semiconductor elements that are heavily doped with electrical carriers.The elements are arranged into array that is electrically connected in series but thermally connected in parallel. This array is then affixed to two ceramic substrates, one on each side of the elements.
To make this Refrigerator, you have two options :
1. Buying the Peltier module,Heat Sink and Fans separately
2. Buying the entire unit which have everything.
After some enquiry, I have settled down to the second option.But if you have some old SMPS fans and CPU
heat sink, then you can choose the first option.
CUTTING THE ACRYLIC SHEETS


First I took the measurement of regular Coke Can,then I finalized the Refrigerator Size.My refrigerator size is
6.5" x 11" x 10" (L x W x H ).So to make a box with this measurement, we need 6 rectangular sheets of following sizes :
1. Base 11" x 6.5 "
2. Top 11" x 6.5 "
3. Left Side Wall 11" x 10"
4. Right Side Wall 11" x 10"
5. Front Door 6.5" x 10 "
6. Back 6.5" x 10"
Note : Actually the front and back cover size is ( 6.5" - 2 x Acrylic thickness) x 10"
Apart from the above 6 sheets, we need few extra sheets for making different compartments.
I used my Rockwell Blade Runner ( Inverted Jigsaw ) to cut the above size 4mm thick acrylic Sheets.
Safety : Wear Safety Goggles during cutting.
1. Thermoelectric Cooler Module ( Banggood )
2. 4 mm Acrylic Sheets ( Amazon )
3. Arduino Nano ( Amazon )
4. Relay Module ( Amazon )
5. LED ( Amazon )
6. LED Holder ( Amazon )
7. 1K Resistor ( Amazon )
8. Rocker Switch ( eBay )
9.DC Jack ( Amazon )
10. Perforated Board ( Amazon )
11.Hinges ( Amazon )
12. Door Handle
13. Rubber feet ( Amazon )
14. Foam Boards ( Amazon )
15. Super Glue ( Amazon )
16. Glue Sticks ( Amazon )
Tools :
1. Jigsaw ( Amazon )
2. Dremel Workstation ( Amazon)
3. Dremel Rotary Tool ( Amazon)
4. Soldering Iron ( Amazon )
5.Glue Gun ( Amazon )
The heart of this Refrigerator is a Thermoelectric Cooler Module. Thermoelectric coolers operate by the Peltier effect The device has two ( Hot and Cold ) sides, and when a DC electric current flows through the module, it brings heat from one side to the other, so that one side gets cooler while the other gets hotter. The "hot" side is attached to a heat sink so that it remains at ambient temperature, while the cool side goes below room temperature.
A thermoelectric module consists of an array of p- and n-type semiconductor elements that are heavily doped with electrical carriers.The elements are arranged into array that is electrically connected in series but thermally connected in parallel. This array is then affixed to two ceramic substrates, one on each side of the elements.
To make this Refrigerator, you have two options :
1. Buying the Peltier module,Heat Sink and Fans separately
2. Buying the entire unit which have everything.
After some enquiry, I have settled down to the second option.But if you have some old SMPS fans and CPU
heat sink, then you can choose the first option.
CUTTING THE ACRYLIC SHEETS


First I took the measurement of regular Coke Can,then I finalized the Refrigerator Size.My refrigerator size is
6.5" x 11" x 10" (L x W x H ).So to make a box with this measurement, we need 6 rectangular sheets of following sizes :
1. Base 11" x 6.5 "
2. Top 11" x 6.5 "
3. Left Side Wall 11" x 10"
4. Right Side Wall 11" x 10"
5. Front Door 6.5" x 10 "
6. Back 6.5" x 10"
Note : Actually the front and back cover size is ( 6.5" - 2 x Acrylic thickness) x 10"
Apart from the above 6 sheets, we need few extra sheets for making different compartments.
I used my Rockwell Blade Runner ( Inverted Jigsaw ) to cut the above size 4mm thick acrylic Sheets.
Safety : Wear Safety Goggles during cutting.
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