Graph3CE is a 3D graphing application for the TI-84 Plus CE. Inspired by my previous 3D graphing tools for graphing calculators, and adapted from my Casio Prizm tool Graph3DP, this project lets TI-84 Plus CE users graph up to six equations in 3D, examine their values via trace, and rotate and zoom them. Here’s how I created it.

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In my ongoing quest to build a physical cab dashboard to control Train Simulator, an important set of components are the gauges that tell me what’s going on with the train. As I build the dashboard into which to embed my gauges, I realized I needed to better modularize my air pressure gauge, moving the control circuit board outside the gauge. Here’s how I did it.

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The core of a train simulator setup could be considered its throttle and brake, the control or controls that make a train go and stop. In previous blog posts, I detailed my exploration of building my own controller from scratch, but a fortuitous eBay listing provided me a real Power/Brake Controller (PBC) from a UK Class 365 train. Here’s how I got it home and reassembled.

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As the different pieces of my Train Simulator controller come together, a bite-sized first task of building the physical dashboard is the door controls placed at each side of the cab. Here, I detail the process of prototyping the door control panel from a Class 80x out of cardboard and the authentic buttons used in the real train, then laser-cutting refined prototypes I can use with my existing setup

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Author's picture

Christopher Mitchell, Ph.D.

Founder & CEO of Geopipe, CS Ph.D., founder of Cemetech, hardware and software hacker, distributed systems guru, lover of trains.

Cofounder and CEO, Geopipe

New York, NY, USA