# Trackball transformed from useless to precision instrument

**URL:** <https://forum.clockworkpi.com/t/trackball-transformed-from-useless-to-precision-instrument/22499>\
**Category:** uConsole\
**Tags:** hardware\
**Created:** [May 30, 2026, 7:40pm UTC](https://forum.clockworkpi.com/t/trackball-transformed-from-useless-to-precision-instrument/22499 "2026-05-30T19:40:40Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![white-round-square](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/white-round-square/32/10385_2.png) [@white-round-square](https://forum.clockworkpi.com/u/white-round-square)\
**Post date:** [May 30, 2026, 8:59pm UTC](https://forum.clockworkpi.com/t/trackball-transformed-from-useless-to-precision-instrument/22499/2 "2026-05-30T20:59:24Z")

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there is a very cool article about ball roughening

> [@EVQWJN007 Trackball Troubleshooting, Fixes and Mods](https://forum.clockworkpi.com/t/evqwjn007-trackball-troubleshooting-fixes-and-mods/21031):
>
> I recently ordered five EVQWJN007 trackballs, and none of them worked out of the box. It’s clear that modern production and materials are a far cry from the original BlackBerry-era standards. I’ve been researching how to rescue these units and improve their feel. For a deep dive into the technical specs, check out this resource: [EVQWJN007 Trackball](https://jing.io/garden/EVQWJN007-Trackball/). Key Fixes & Mods Fixing Mechanical Failure: Most “dead” units just have poor tolerances. Increases contact pressure between the ball and the inte…

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