[Cooperman] had been poking around the ‘net checking out DIY CNC machines for a while. He wanted to build one. During his search, he noticed that there was a common thread amongst homemade machines; ...

Fatigue life is a key concern in welded-steel frames for mobile equipment that experience large and varying dynamic loads. For engineers who design welded-steel structures subject to dynamic loading, ...

Its high-strength 60 3 60-mm cross section and multiples up to 120 3 240 mm handle extreme loading, torsion, and deflection, replacing designs requiring welded box-section-steel machine-frame ...