Recent Blogs
Whitworth Quick-return: Angular Timing and Clearance Comparison
Compare ideal working and return crank sweeps, plus clearance against an assumed 0.050 mm reference. Stroke, linkage closure and wear are not calculated.
Whitworth Quick Return: Ideal Crank-angle Timing Calculator
Compare ideal cut and return times from a constant-speed crank-angle model. The calculator does not solve the complete Whitworth linkage or its stroke.
Slotted Lever Motion Mechanism Explained: How It Works, Quick Return Geometry, Parts and Uses
Explore a crank and slotted lever, its tangent reversal positions, and the ideal work-to-return time ratio.
Quick Reciprocating Motion: Declared Two-Arc Ledger
Quick reciprocating rectilinear motion converts rotation into a fast forward stroke and slower return — used in shapers, pumps, and packaging machines.
Quick-Return Motion: Declared Crank-Arc Timing Ledger
Quick return mechanism explained — how the unequal forward and back stroke speeds up shaper, slotter and metalworking machines. Formulas, ratios and worked example.
Drag-link Quick-return Mechanism: How It Works, Diagram, Parts, Time Ratio and Uses Explained
Explore a drag-link quick-return drive with a guided ram. Calculate stroke, position, velocity and the time ratio between its two travel directions.