Lego Binary Adding Machine Prototype
Lego Binary Adding Machine Prototype Information Guide
Overview of Lego Binary Adding Machine Prototype

Some of the gear-based mechanisms I'm developing for a workshop in Feb 2015. Additional mechanisms developed whilst working on gear-based adders for workshop in Feb 2015. Showing tidier version of adders and also variable gear ratios using cones and the old mechanical computer method of ... PDFs of build instructions at These are the final models for Edinburgh workshop. Includes 3 ... Kohner Brothers incorporated in 1960 and dissolved in 1983.
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Last Updated: June 15, 2026
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