For starters, understand that the lifting platform is supposed to provide a solid, secure area for lifting - it is supposed to be capable of taking the pounding of heavy weights being dropped from arms' length overhead, day after day, and it needs to provide a sure-footed area for doing your lifts.
Class K welding cable is the most commonly used. Your standard welding cable is 30 AWG stranded and is available in a red or black jacket. Class K cable is commonly used for stationary welding jobs. Item (sold by the foot) O.D.
We used about four feet of 4AWG wire to build the spot welder in the photo. Other materials included scrap 2Ã6, 2Ã2, two copper screw type lugs, two copper welding cable lugs, two MIG welder tips, two 4â³ x 3/4â³ zinc plated corner braces, drywall screws, and three washers. Pictured above is a working MOT.n this how-to we cover the basics of a spot welder, and then show you how to build one from a microwave oven transformer. A spot welderâs electrodes serve at least three functions. They transfer electrical energy to the material while also holding it together; this also controls resistance.