Recent Blogs
Quadruplanar Inversor: Ideal Circle-Inversion Map
Quadruplanar Inversor explained — how this 4-bar inversion linkage converts circular motion to straight-line travel for drafting tools, optics jigs, and lab gear.
Parallel Ruler (Form 4): Ideal Repeated-Line Transfer
Explore repeated transfers with an equal-link parallel ruler. Calculate perpendicular step size, full placement count, covered distance and final excess.