In a proper manufacturing situation, this is usually done with outrageously expensive welders. Not wanting to spend thousands of dollars to attach bits of metal together, [Robert] built his own ...

[Aaron Christophel] has a battery spot welder that costs a not unreasonable ... clone providing the timing for a set of MOSFETs that do the heavy lifting. There’s a colour display for tweaking ...

Arc welders rarely wear out, but they can become out of date. Here’s a look at modern welding options for farm shops: Arc welders are the traditional welding workhorse. Modern arc welders use ...