Recent Blogs
Drag-link Mechanism (d-class): How It Works, Parts, Formula & Quick-Return Uses Explained
Explore a D-class drag-link four-bar: adjust the four link lengths to compare output speed, Grashof classification and equal-angle half-turn times.
Grashof Linkage: Four-Bar Assembly and Rotation Calculator | FIRGELLI
Check four link lengths for assembly and Grashof rotation. Compare sorted sums and margin, with a longest-ground four-bar animation and worked example.