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"How I built a Mechanical Calculator [out of wood]" | WhatWillMakes (www.youtube.com)
submitted 8 months ago* (last edited 8 months ago) by to c/woodworking@lemmy.ca
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Caption from the video:

How and why I built a mechanical calculator. Basing it on the Arithmometer, I built this calculator by hand out of mostly plywood. I suspect it is the first of its kind built in over 100 years. Working on and off, it took me 8 years.

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[–] 2 points 8 months ago

@otters_raft @girlonthenet ah.. the adding columns are slightly rotated relative to each other so they can perform the additions in sequence lowest-to-highest.

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