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Print-In-Place Chebyshev Lambda Straight-Line Linkage
This is a print-in-place Chebyshev lambda linkage that prints as one assembly. It has a 12 mm crank, a 24 mm ground link, 30 mm follower and coupler links, and a 60 mm coupler arm. It turns rotation from a 5 mm motor shaft into a near-straight tip stroke of about 48 mm, which you can use for walker legs, pushers or plotter feeds. The base takes four M3 self-tap screws from below. The crank hub has a 5.3 mm shaft bore with an M3 set-screw window, and the tip has a 3.4 mm M3 hole for mounting a foot or pen.
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