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The Ploopy Adept Trackball is an input device that looks a bit like a Kenginston Expert trackball, but it has more buttons, a smaller trackball, a 3D-printed case, and a completely open source design.
In other words, in addition to pre-ordering one from Ploopy for $80 CAD (about $60 USD) and up, you can visit the company’s GitHub page to find design files, schematics, and firmware, which means you can customize this trackball to your heart’s content.
Theoretically you could also build your own from scratch rather than paying for one. But I suspect that most folks would probably end up spending more than $60 if they went that route.
The starting price is for a DIY kit that comes with a 3D-printed case, ball, sensors, a mainboard, and a Raspberry Pi Pico running QMK firmware. You can pay a little more to get a fully-assembled model if you don’t feel like putting everything together yourself. Or you can save a few bucks and get everything but the case if you want to 3D print your own.
But thanks to the open source design, that’s not all you can do. Want a bigger body that will accommodate a larger trackball? Then you can just modify the design files and print your own (or order it from a commercial 3D printing company if you don’t have your own 3D printer). Want to change the behavior? Then you can modify the firmware.
Or if you just want to give the company some money and be done with it, you can choose from one of eight available colors and select whether to have the Ploopy Adept shipped with a USB-A to USB-C cable or not.
Ploopy has been around for a few years. The company launched its first open source trackball in 2019, and since then Ploopy has expanded its lineup to include a number of other products including a thumb-operated trackball, and the Ploopy Mini and Nano trackballs.
The new Ploopy Adept went up for pre-order the end of September, and should begin shipping to customers by early December at the latest.