Ploopy Classic 2 is an upgraded trackball mouse available as a DIY kit or fully assembled Ploopy has made a name for itself over the past few years by offering a line of customizable trackball mice with open source designs that allow you 3D print or modify your own device. Since launching its first trackball in 2019, Ploopy has followed up with several additional designs for different trackball styles. Last year the company even introduced a TrackPad…

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