2D Mechanical Linkage Designer

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Motor / driving joint

Drive link (crank)

Speed (rpm) Direction

Playback

Crank angle

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Sim time

0.00 s

State

paused

Nothing selected. Use the Select tool and click a joint, link or track.

Trace joint

Name	Type	X	Y

Link	Nominal	Actual	Error

Mechanism name

Slot

Fixed pivot: click empty canvas. Ground pins never move.
Joint: click to drop a free rotating pin.
Track: press-drag-release to draw a slider rail.
Slider: click near a rail to snap onto it, else a horizontal rail is created.
Link: click two joints, type the exact length, create. Lengths never stretch.
Motor: pick a crank link (pivot → joint), set rpm, press Play.
Select: drag joints to pose the mechanism; lengths are preserved while dragging.

Keys: 1–7 tools · Space play/pause · N step · R reset · Del remove · Esc cancel.