Mechanical Design Toolkit
Mechanical design
tools that work
A growing suite of clean, visual, interactive calculators for everyday mechanical design: fits, latches, linkages and more.
These tools run in a separate toolkit app. Each one opens in a new tab.
Bolted Joint
ReadyPreload, torque, stretch, thread strip and slip for a single bolted joint. Inch + metric. Sources: Shigley, Bickford, VDI 2230.
ISO Fits & Tolerances
ReadyHole/shaft tolerances, deviations and clearance per ISO 286-1.
Cam Profile Analyzer
ReadyDifferentiate a measured cam follower profile through 5 derivatives, fit textbook cam laws (cycloidal, harmonic, 8th-power), and find the governing RPM.
Kinematics Designer
BetaSketch planar linkages with pin joints, sliders, actuators and rigid links. Live constraint + force solver, per-link stresses.
BLDC Motor Simulator
ReadyAnimated outrunner brushless-DC motor. Any slot/pole combo, auto winding layout, per-coil current, tooth forces and live torque-ripple chart.
ANSI B4.1 Inch Fits
PlannedRC, LC, LT, LN, FN classes for inch-based design (Engineers Edge tables).
Tap & Clearance Drill Sizes
PlannedDrill diameters for tapped, clearance and counter-bored holes.
Thread Standards
PlannedUNC, UNF, M-series and BSP thread reference + pitch / TPI.
Preferred Sizes
PlannedISO/ANSI preferred number series for sizing parts and stocks.
Gear Pitch Conversions
PlannedDiametral pitch / module / circular pitch with gear sketch.