Hackaday reader [David] was looking for a cheap and easy way to spot weld copper tabs together. As he notes in his writeup, the properties of copper which are most enticing, such as high thermal ...

Spot welding machines are revolutionizing mass production with unmatched precision and efficiency! This process ensures strong, seamless metal joins, making it essential for industries worldwide.

There was a time when every gizmo on AliExpress also had a big white LED so it could also work as a flashlight, but maybe the power bank is the new flashlight. [Aaron Christophel] has a battery ...