Spring

The MakerGear Mosaic 3D Printer  – Part VI: The Build Platform

The MakerGear Mosaic 3D Printer – Part VI: The Build Platform

This is the sixth of eight guides in a series documenting my build of MakerGear’s Mosaic desktop FDM/FFF 3D printer kit. the frame the Y-axis the X-axis the Z-axis the extruder the build platform the electronics the first print   This part covers assembly of the build platform, which consists of installing and adjusting the […]

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Marble Adding Machine

Marble Adding Machine

[youtube http://www.youtube.com/watch?v=GcDshWmhF4A?wmode=opaque&w=560&h=315] Computers add binary numbers constantly, but we never see how. This elegant machine does the math using glass marbles. I started building marble track machines years ago using Lego. I experimented with all sorts of crazy ways for the marbles to descend. One was a rocker that shunted a stream of dropping marbles […]

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