After watching interesting videos on YouTube, and also being inspired by this topic on ChipMaker, I also really wanted to make spot welding from a microwave with my own hands.
To make welding from a microwave, I purchased a transformer from a microwave, a 50 sq. mm stranded copper wire. about 2 m long, but this turned out to be a lot... As electrodes for spot welding, I used tips from soldering irons with a diameter of 13 mm; I could not get another copper rod in my city.
So, how I made spot welding from a microwave transformer.
How to make a transformer
First I sawed the transformer to remove the secondary winding, and I will repeat again:
Please note that a microwave transformer is dangerous to life! Those. it should not be connected to the network for testing until the secondary winding is removed, because The voltage on it is about 2000V and it can kill a person from a distance!
From copper wire to 50 kV. mm I removed the insulation because... it is too thick and is designed for 600 volts, and spot welding has a voltage of 2-3 volts in total.
As experienced people joke: Papyrus is enough for insulation
