Recent Blogs
Crank Substitute Mechanism: How the Planetary Gear Slider-Crank Works, Parts & Uses
Explore an internal-gear crank substitute. Compare the straight-line 2:1 case with changed tooth counts or pin offset, and calculate first-turn spans and peak pin speed.
External/Internal Sector Gears: Reversing-Motion Calculator | FIRGELLI
Explore a pinion driven alternately by external and internal gear sectors. Compare ideal forward and return travel, dwell and quick-return speed.