Recent Blogs
Lever and Ratchet: Ideal Force Ratio and One-Tooth Indexing
An ideal lever-force comparison with an animated ratchet cycle that separates drive, holding and reset phases without implying a product capacity.
Reciprocating to Intermittent Circular via Pawl Mechanism: How It Works, Parts, Diagram, and Uses
Explore a reciprocating drive pawl and locking pawl. Calculate tooth pitch, pitch-circle arc and accumulated rotation for completed one-tooth strokes.
Ratchet-wheel Stops: Tooth Pitch, Pawl Engagement and Resolution Calculator
Compare ratchet-wheel tooth counts and ideal pitch angles. Explore seated pawl contact, angular resolution and the limits of a tooth-spacing calculation.
Rack and Pawl: Declared Index-Pitch Ledger
How a Rack and Pawl mechanism converts reciprocating motion into one-way linear indexing — design rules, formulas, and real applications in lift jacks and presses.
Pawl Lift: Two-Pawl Rack Indexing Sequence
Explore a two-pawl rack lift. Calculate ideal indexed travel and elapsed time from rack pitch, completed raising strokes and stroke cadence.
Windlass Grip Pawl: Signed Force and Moment Comparison
Compare chain pull and signed pawl-offset moment. The negative-offset indicator describes the entered sign; it does not prove release or self-locking.