This was my first test of lifting the truss using the boom. I was exceptionally cautious to get the truss right in the center. I also designed the truss so that the weight would be 75% below the mean chord-line of the cross bar so that it would not swing upside down. It took very close work with the FEL hyd control because everything is amplified by 14 extra feet. Clutch work was also critical to set the ends of the truss on the beam for welding.
I've burned at least 30Lbs of stick welding. I have a MIG unit, but it's only 180 amp, and only 20% duty cycle so it would not give me good penetration that I wanted. I'm using all used drill stem pipe of 2-7/8" dia, and it is very hard steel. Each 30' section weighs about 140Lbs.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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