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 - A Lifetime of David Brown - by Samuel Kennedy. I was born in 1950 and reared on my family�s 100 acre farm. It was a fairly typical Northern Ireland farm where the main enterprise was dairying but some pigs, poultry and sheep were also kept. Potatoes were grown for sale and oats were grown to be used for cattle and horse feeding. Up to about 1958 the dairy cows were fed hay with some turnips and after that grass silage was the main winter feed. That same year was the last in which flax was grown on the farm. Flax provided the fibre which w
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