Recent Blogs
Two Crank-disks Traverse: Brown Movement 122 and Vector Comparison
Explore Brown movement 122 and compare the resultant of two equal vectors at three included angles. These vector magnitudes do not determine the historical bar...
Treadle to Disk via Connecting Rod: Ideal Geometry Comparison
Explore a treadle-and-pitman arrangement beside a simplified in-line slider-crank angle comparison. The calculation does not solve the full treadle linkage.
Spring-return Treadle to Pulley Mechanism: How It Works, Parts, Diagram, and Uses Explained
Spring-return treadle to pulley converts foot strokes into shaft rotation via a crank and return spring. Sizing, formulas, and real workshop examples.
Single Revolution Per Stroke Mechanism: How Punch Press Clutches Work, Parts, Formula, and Uses
Single revolution per stroke mechanisms convert one input rotation into one output cycle — used in punch presses, packaging, and stamping machines.
Engine Uncoupling via Slotted Ring (form 2): How the Declutch Mechanism Works, Parts and Diagram
Explore disengaged slotted-ring coupling geometry. Compare pin diameter, slot width and conservative clearance for the pin’s curved passage.
Engine Uncoupling via Slotted Ring (form 1): How the Mechanism Works, Parts & Uses Explained
Explore engaged slotted-ring coupling geometry. Compare pin diameter, slot opening, backlash take-up and ideal torque from a wall-normal force.
Crank (general) Mechanism: How It Works, Slider-Crank Diagram, Parts and Real-World Uses
Explore an in-line slider-crank. Calculate stroke, slider travel, rod-length ratio and mean piston speed, and inspect angles where a short rod cannot reach the guide.
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.
Reciprocating Transmission: In-line Slider-crank Geometry
Calculate stroke, rod length, slider displacement and full-cycle mean speed for an ideal in-line slider crank. Forces and machine performance are not modeled.
Eccentric Crank Mechanism Explained: How It Works, Diagram, Parts, Formula and Uses
Eccentric crank explained — how the offset shaft converts rotary motion into reciprocating linear motion in pumps, presses, and steam locomotive valve gear.
Single-Rod Hydraulic Cylinder: Ideal Net Rod Load and Nominal Stress
Piston Rod explained — how it transmits force from piston to crank, sizing rules, buckling limits, and real examples from diesel engines to hydraulic presses.
Variable Crank Throw: Ideal Stroke and Screw Adjustment
Calculate ideal stroke from crank radius and stroke change per radial screw turn. Compare radius with an explicitly entered symmetric span; actual slot capacity and...
Variable Crank Motion: Compare Two Ideal Slider Strokes
Compare ideal peak-to-peak slider strokes for two crank radii. Calculate their signed difference and ratio; instantaneous motion, loads and adjustment hardware are not solved.
Adjustable Crank Throw: Ideal Slider Stroke Calculator
Compare adjustable crank throw with an entered range and calculate ideal peak-to-peak slider stroke. The illustration does not size the adjuster, connecting rod, bearings or...
Slider-crank Reversing Mechanism: How It Works, Diagram, Parts, Formula and Uses Explained
Slider-crank reversing converts continuous rotation into reciprocating linear motion. See how it works, formula, worked example, and shaper-machine uses.
Rotary and Longitudinal Motion: How It Works, Mechanisms, Formulas, and Real-World Uses Explained
Rotary and longitudinal motion converts spinning input into straight-line output. Learn the mechanisms, formulas, and real machine examples used in automation.
Elliptical Crank: Trammel Animation and Point-Velocity Calculator
Explore a double-slider elliptical trammel. Adjust horizontal and vertical semi-axes, initial phase and cycle time while following position and speed.
Pearsall Hydraulic Ram and Air Compressor: Hiscox 553
Explore Pearsall’s crank-driven hollow piston and ported cylinder. Calculate ideal piston stroke, cycle period, mean piston speed and rod-to-crank ratio.
Half-Yoke Connection: Central-Crank Pump Motion Calculator
Explore a half-yoke joining pump piston rods around a central crank. Calculate stroke, selected piston position, velocity and connecting-rod angle.
Diaphragm Pump Mechanism: Crank Drive, Valves and Flow Calculator
Explore a crank-driven diaphragm pump with animated check valves, exact linkage motion and shape-based ideal displacement and flow calculations.
Reciprocating Motion Mechanism: How It Works, Slider-Crank Diagram, Parts, Formula and Uses
Explore slider-crank reciprocating motion. Calculate stroke, connecting-rod length, displacement from TDC and instantaneous piston speed at a selected crank angle.
Sliding Contact Mechanism Explained: How It Works, Diagram, Parts, Formula and Uses
Explore a block sliding in a fixed guide. Calculate Coulomb friction and frictional power from selected normal load, coefficient and speed.
Slider (mechanism) Explained: How It Works, Parts, Slider-Crank Formula, Diagram and Uses
How a slider mechanism works, where it fits in industry, plus a worked example with formulas, tradeoffs and FAQs from FIRGELLI engineers.
Shuttle Motion Mechanism: How Slider-Crank Reciprocation Works, Parts, Uses & Diagram
Explore a generic crank-driven shuttle carriage on straight guides. Calculate stroke, rod length, cycle rate and mean speed from selected dimensions.