← hack-lab.space

A LEGO gantry on two uprights. A carriage on the top rail holds a pen pointing down at a card, where a spiral has been drawn. An arrow beside the pen shows it moving up and down.

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An early SPIKE assembly held in one hand: a motor, coloured Technic beams and a small wheel, with a cable attached.

rebrickable.com ↗

SPIKE Prime Plotter (XY) — mareklew
qikeasy.com ↗

XY plotter with pen lift
education.lego.com ↗