📏 Micrometer Screw Gauge: Reading, Zero Error and Least Count (2D)

Reading window of an outside micrometer: a 0.5 mm pitch screw, a 50-division thimble and a half-millimetre sleeve scale give a 0.01 mm least count. Close the spindle on a gauge block, correct for zero error and temperature. Same screw geometry as the 3D page, with quantisation and zero-error checks.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install