Recent Blogs
Cam-operated Shears Mechanism Explained: How It Works, Diagram, Parts, Force Formula and Uses
See a cam close a pivoted shear. Estimate cutting-edge force for a solid round section and compare cycle timing, with clear limits on cam-load and...
Valve-motion Eccentric: Ideal Projection and Speed Calculator
Calculate the ideal projection of a rotating eccentric center from throw, crank angle, advance and shaft speed. Actual strap, rod and valve motion are not...
Wedge Cam Mechanism: How It Works, Diagram, Formula, and Industrial Uses Explained
Explore ideal wedge-cam geometry. Compare follower lift, ramp length and frictionless force ratio from horizontal travel and ramp angle.
Waved-wheel Cam: Ideal Follower Event-rate Calculator
Compare two cam speeds and wave counts using one event per wave. The illustration shows cam-follower contact; the outputs calculate event rate and frequency.
Three-wiper Frame Reciprocator: Shaft Geometry
Explore Brown movement 128, with three wipers on one shaft driving one frame. Compare displayed wiper directions and tip-circle diameter; exact frame stroke is not...
Spiral Guide on Disk (drilling Feed) Mechanism: How the Archimedean Face Cam Drives Quill Feed
Spiral guide on disk converts rotation into linear drilling feed. Learn how the Archimedean groove drives drill-press quills with a worked example and selection rules.
Self-reversing Motion Contrivance: How It Works, Diagram, Parts, and Traverse Speed Formula
How a self-reversing motion contrivance converts continuous rotation into reciprocating linear traverse — used on level-wind reels, winders, and lathes.
Reciprocating Pump From Rotary via Cam: How It Works, Parts, Diagram and Calculator
Explore a circular eccentric cam driving a pump plunger. Calculate plunger area, ideal volume per stroke and revolution, and revolutions per millilitre.
Oblique-Disk Reciprocator: Brown Item 95
Explore the oblique disk and upright resting follower in Brown item 95. Calculate ideal sinusoidal displacement and full stroke from contact radius and disk tilt.
Triangular Eccentric: Equal-Arc Geometry
Explore an equal-arc triangular eccentric and calculate ideal centroid support limits, lift and threefold repetition rate for a Reuleaux profile.
Modified Eccentric with Elongated Yoke: Straight-Line Motion
Explore how an eccentric disc and elongated yoke produce guided sinusoidal rod motion. Calculate stroke, ideal slot height, peak speed and acceleration.
Inverse Cam: Illustration and Circular Arc-to-Angle Calculator | FIRGELLI
View an illustrative profiled follower and convert circular arc length to central angle. The calculator does not predict cam-profile tolerance or output error.
Grooved Heart-Cam: Average Traverse Calculator | FIRGELLI
Compare average traverse speed, cycle time, nominal groove width and a selected stroke fraction. Includes an ideal heart-cam animation and explicit reversal limits.
Face Cam: Cycloidal Motion and Follower-Speed Calculator | FIRGELLI
Explore a cycloidal axial cam schedule. Calculate ideal groove angle, follower speed and acceleration from stroke, rise angle, pitch radius and cam speed.
Meyer Expansion Valve: Cutoff Kinematics Calculator | FIRGELLI
Explore a harmonic relative-motion model for a Meyer riding cutoff. Calculate closing crank angle and ideal piston travel with a finite connecting rod.
Eccentric Cone Change-velocity (form 2) Mechanism: How It Works, Parts, Diagram & Uses Explained
Explore an eccentric cone on an advancing screw. Calculate roller height, signed rotational speed, vertical velocity and axial sliding during one turn.
Eccentric Cone Change-velocity (form 1) Mechanism: How It Works, Parts, Formula and Diagram
Explore an eccentric cone on an advancing screw. Calculate roller height, signed rotational speed, vertical velocity and axial sliding during one turn.
Disk Cam with Translating Follower Mechanism: How It Works, Diagram, Formula and Uses
Explore a cycloidal disk cam with a translating point follower. Compare full-cycle pressure angle, required base radius, peak velocity and acceleration.
Disk Cam with Oscillating Follower: How It Works, Parts, Formula, and Industrial Uses Explained
Explore an eccentric circular disk cam and oscillating roller follower. Calculate follower swing, output-tip arc and cycle time for the stated mounting geometry.
Continuous Rotary Cam to Alternating Bar Mechanism Explained: How It Works, Parts, Diagram, Uses
Explore a three-lobed cam driving an opposed-roller yoke. Compare cycle rate, peak bar speed, inertia force and guide reaction for a harmonic profile.
Conjugate Cam Mechanism: How It Works, Diagram, Formula and Worked Example
Explore paired flat-faced conjugate cams. Compare follower spacing and cam support distances to calculate clearance, interference and return-profile size.
Uniform-Traverse Heart Cam: Ideal Motion Calculator | FIRGELLI
Calculate selected-angle position, radial distance, nominal traverse speed and reversal frequency for an ideal heart-cam motion law.
Cams on Shaft to Alternating Rod Motion: How It Works, Diagram, Parts, and Uses Explained
Explore two shaft-mounted cams driving rocker levers and guided rods. Compare nominal phase, key-clearance allowance and the resulting timing shift at a chosen speed.
Cams of Varying Throw (expansive Valve) Mechanism Explained: Parts, Diagram, Formula & Uses
Select cam throws on a sliding shaft and explore their effect on a roller lever and valve rod. Compare rod travel, peak speed and lever...
Cam-wiper Alternating Rectilinear (stamper) Mechanism: How It Works, Diagram, Parts and Uses
Explore a two-wiper gravity stamper. Calculate ideal drop energy, impact speed, fall time and lifting force, with a contact and return-time speed check.