Reinventing Rotary Switches for Nanovolt Accuracy Scanner

PCBWay Open Source Design Contest https://www.pcbway.com/activity/kicad-open-source-design-contest.html Benchtop Voltmeters & 3D Printers at https://www.welectron.com/ More from me at https://www.patreon.com/marcoreps or YouTube Channel subscription NBS Technical Note 430 https://dataproof.com/Publications/NBS430.PDF Nanovolt Scanner Project https://github.com/marcoreps/rotoplexer 10V Standard project https://github.com/marcoreps/ADRmu Keithley 7168 nanovolt switch card https://xdevs.com/review/kei7168/ BIPM Rotary Switch paper https://iopscience.iop.org/article/10.1088/0957-0233/24/2/025008 00:00 Intro 02:34 NBS 430 Method 03:34 How I could do it 09:04 How I will do it 11:35 Mechanical 17:37 Motion control 19:42 Assembly 21:46 First test 24:57 Problems