Engineering · Machine Design

Linkages, Cams and Motion Workbench Calculator

Screen four-bar mobility and calculate slider-crank velocity, pulley speed, cam dwell fraction and Geneva indexing geometry from entered dimensions.

Engineering · Machine Design

Enter the engineering model

Explicit properties, geometry, units and assumptions
Visual modelSchematic · not to scale
Machine Design: grashof visual explanationA simplified diagram showing the relationship represented by the selected calculator mode. It is explanatory and not a fabrication, safety or scale drawing.linkage kinematics
The diagram explains the selected relationship only. Dimensions, symbols and proportions are illustrative; use the entered values and stated assumptions for the calculation.

Keep every unit basis, sign convention, property source and idealization consistent. Values stay in this browser.

Engineering calculation result

Enter valid values to see the result.

Your entries are calculated in this browser and are not submitted to 365CALCS.COM.

Quick guide

How to use this calculator

  1. Choose the analysis mode that matches the physical model before entering values.
  2. Enter properties, geometry, loads, states and coefficients from one consistent unit and sign convention.
  3. Use the intermediate outputs to audit the relationship, then retain the stated idealization before applying it.

Calculation method

Transparent engineering model

Grashof screening uses s+l≤p+q; slider velocity differentiates the ideal crank geometry; belt speed equality gives n₁d₁=n₂d₂.

The calculator evaluates only the declared relationship and preserves visitor-entered assumptions rather than selecting materials, factors, components or standards.

Worked example

Worked example

Four links 20, 40, 50 and 60 satisfy the Grashof relation because 20+60≤40+50.

Grashof screening uses s+l≤p+q; slider velocity differentiates the ideal crank geometry; belt speed equality gives n₁d₁=n₂d₂.

Supported inputs

Precision and limits

Analysis, not approval

Kinematic arithmetic only. Interference, force transmission, joint limits, dynamics, wear, balance and manufacturability require a complete mechanism model.

Standards and properties

Material properties, allowable values, load combinations, safety factors, correlations, manufacturer data, codes and jurisdictional requirements are not supplied automatically.

Units and precision

Use one consistent unit basis. Results retain working precision but cannot be more accurate than the entered measurements and properties.

Privacy

Entered engineering values and results stay in this browser and are not sent to analytics or third parties.