3D print
Prompt that made this
Four-bar linkage. Five separate parts, not grouped: a ground bar, a 40 mm crank, a 70 mm coupler, a 55 mm rocker, and the four pins that join them. Assembled so the parallelogram reads at a glance.
Made in Voloom from the prompt under the model. Sign in to download the STL, or fork it so every size on the right becomes editable — without spending credits.
Why this one
Teaching model or printable mechanism demonstrating a four-bar linkage
Crank rotates about O2 on the ground bar, drives the coupler through pin A, and the coupler swings the rocker about O4 through pin B. Bars sit on separate Z layers so they can rotate past each other, and each pin passes through two clearance holes.
How to print
Download the STL, 3MF, or STEP and slice it. Fork the design to change a size before you print.
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