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“In this project I am making a DIY spot welding machine to be used for building battery packs with 18650 lithium ion cells. I also have a professional spot welder, model Sunkko 737G which is around $100 but I can …
“Nowadays it is very common to use batteries on makers projects. The propose of the project is to be able to solder easily on lithium batteries without using battery case holders. This cool solution allows to build a small and …
Project Simple DIY Dual Pulse Spot Welder with Arduino Controller and Screen (microwave transformer based)
“So you want to build your own spot welder? I did too! I found lots of good how-tos out there, but most of them require hard to find parts, custom PCBs, or some other such barriers to entry. So I …
“An Arduino Nano based Spot Welder for battery welding. This Spot Welder can be used to weld 18650 batteries. It needs a 7-12V power source (12V recommended) and uses a 12V car battery as welding current supply. Typically one 45Ah …
“This project is an outline of how to build a resistance spot welder using salvaged parts from an old microwave. Im using it to weld nickel tabs onto 18650 battery cells but depending on how you position the arms it …
“Microwaves are treasure troves of useful electronic components. They’ve usually got some nice microswitches, a big transformer, a magnetron, and some smaller transformers and rectifiers to drive the display. I found a decent sized microwave hanging out on the …