DIY Spot Welder with Microwave Transformer
In this video, I'll show you how I made a spot welder by modifying a microwave transformer and using a test kit from Aliexpress.
Enjoy!
00:00 Intro
00:17 How to distinguish the primary from the secondary of a transformer
00:43 Time Lapse: Removing the secondary winding
01:26 Damaged primary windings? No worries
02:18 Let's prepare the cable for rewinding
03:38 First test with 3 turns
04:54 Second test with 4 turns
05:37 Time Lapse: Modifying the container
09:49 A quick recap of what I've done so far
10:54 How do you connect everything and how does it work?
14:18 Making the soldering tips
19:15 First soldering test
20:27 Final considerations