Videos @lemmy.world Ludrol @szmer.info 3mo ago Mechanical calculator made of wood 2 crossposts Woodworking @lemmy.ca Otter Raft @lemmy.ca 3w ago "How I built a Mechanical Calculator [out of wood]" | WhatWillMakes Technik @feddit.org mettwurstkaninchen @feddit.org 9mo ago How I built a Mechanical Calculator