Category Archives: 3D Printing

Bus Prognosticator

Posted on 2025-11-30 by M. Eric Carr

A Bus Prognosticator, to show estimated time until the next inbound SEPTA bus. Continue reading →

Posted in 3D Printing, Arduino, C, Networking, Projects, Tools | Leave a comment

Meta-tool

Posted on 2022-03-27 by M. Eric Carr

A print-in-place bike suspension adjustment wrench demonstrates 3D printers’ ability to make working tools. Continue reading →

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Hardware As Firmware

Posted on 2022-02-27 by M. Eric Carr

A 3D printer is used to teach a 1967 Sears sewing machine new patterns. Continue reading →

Posted in 3D Printing, Design, Mechanical, Nostalgia, Tools | Leave a comment

Bearing Raceway Speedometer

Posted on 2021-04-30 by M. Eric Carr

A TTGO board, 3D printed enclosure, and some optoelectronics are turned into a speedometer for steel bearing balls. Continue reading →

Posted in 3D Printing, Arduino, C, Coding, Digital | Leave a comment