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Hey! Want to make some kind of large battery pack for a project and don't want to have to purchase one of those expensive Spot welders? Well, you're at the right place! Make a DIY Spot Welding Machine for dirt cheap - next to nothing! Just grab your tools, some scrap parts, a broken microwave oven and let's build!
This 1000-Watt Spot Welding Machine produces an open-circuit voltage as low as 2.2V at 450 Amps, when welding (in short-circuit) the voltage drops to about half of that or even less with a current as high as 900-1200A.
If you enjoyed watching this video or found it informative, please consider leaving a thumbs up, share, comment, and subscription to the channel! :)
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Circuit diagram - Spot Welding Machine:
https://drive.google.com/file/d/1ql00_u0Mn5TzKNr5tplSysop932iM270/view?usp=sharingMaterials/parts needed for this project:
Microwave Oven Transformer (MOT)
Microwave Oven (AC powered) Cooling fan
15A Momentary Push switch -
https://amzn.to/3eaq8IO15A On/off toggle switch -
https://amzn.to/3T4iApy10-15A Fuse -
https://amzn.to/3rBIsNX1M of 4AWG Enameled copper welding wire (a.k.a battery wire) -
https://amzn.to/3CEQhc7Electrical wire (12-16AWG) -
https://amzn.to/3Ma3L2F120V 3-wire cable -
https://amzn.to/3MecGzV3mm exposed solid copper wire (spot welder tips) -
https://amzn.to/3eaCnFdUPS Inverter Metal cover/case (A plastic or wooden enlosure can do fine)
1x1" Square stick of wood
Retraction spring -
https://amzn.to/3MecUHhMini door hinge -
https://amzn.to/3ecwffv(x2) Shortened bolts -
https://amzn.to/3edoB4AZip ties -
https://amzn.to/3EnWs5CPVC-foam gripped handle
Wooden "Cement Float" Handle
Spray paint -
https://amzn.to/3ynQQECNickel strips for spot welding 18650-type Li-Ion batteries together -
https://amzn.to/3RXgZBf18650 cells -
https://amzn.to/3QKafro🪛🔧🔨 Tools and extra supplies I use:
➡️ Soldering Iron Kit -
https://amzn.to/3X6L5Wq➡️ Hot Glue Gun -
https://amzn.to/3E6trJG➡️ Drill Machine -
https://amzn.to/3EDe0u8➡️ Box cutter/Utility knife -
https://amzn.to/3hP9MGI➡️ X-Acto Hobby Knife -
https://amzn.to/3XbL7ML➡️ Cutting Matt (Green) -
https://amzn.to/3gil71A➡️ Needle-nose Pliers -
https://amzn.to/3ECTKc3➡️ Wire Cutters for Electronics -
https://amzn.to/3ECut1B➡️ Wire-stripping tool (Automatic) -
https://amzn.to/3hQsMVD➡️ Screwdriver kit -
https://amzn.to/3V6vgNX➡️ Heat-shrink Tube Kit -
https://amzn.to/3AksTPE➡️ Jumper Wire Kit -
https://amzn.to/3UGhMZq➡️ Breadboard for Prototyping -
https://amzn.to/3GlF4ze➡️ Perf Boards, Pin headers, and Connectors Kit -
https://amzn.to/3AkySUw➡️ Superglue -
https://amzn.to/3EE6uis➡️ Duct Tape -
https://amzn.to/3g5mTU0➡️ Double-sided Tape -
https://amzn.to/3Edta82➡️ Kapton Tape (for battery leads) -
https://amzn.to/3X58bNlMusic credits:
CHRIS HAYES MUSIC - CHILL TRAP BEAT | No Copyright Trap
Free Download Link
http://bit.ly/36SP39M#spotwelder #diyspotwelder #batteryspotwelder