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I made an extension for my trackman marble to add a wheel and some programmable buttons - xpost from /r/functional prints : r/Trackballs
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Chromium based Microsoft Edge and Logitech TRACKMAN MARBLE mouse's universal scroll not working - Stack Overflow
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![Amazon.com: Customer reviews: Logitech Trackman Marble Trackball – Wired USB Ergonomic Mouse for Computers, with 4 Programmable Buttons, Dark Gray Amazon.com: Customer reviews: Logitech Trackman Marble Trackball – Wired USB Ergonomic Mouse for Computers, with 4 Programmable Buttons, Dark Gray](https://m.media-amazon.com/images/I/51cvPOAKa2L._CR93,0,606,606_UX256.jpg)