# Aux Box Case Pressure Outlet

**URL:** <https://forum.avidcnc.com/t/aux-box-case-pressure-outlet/6565>\
**Category:** General Chat\
**Created:** [September 7, 2026, 11:20pm UTC](https://forum.avidcnc.com/t/aux-box-case-pressure-outlet/6565 "2026-09-07T23:20:59Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![docrawfo](https://avatars.discourse-cdn.com/v4/letter/d/8e7dd6/32.png) [@docrawfo](https://forum.avidcnc.com/u/docrawfo)\
**Post date:** [September 7, 2026, 11:20pm UTC](https://forum.avidcnc.com/t/aux-box-case-pressure-outlet/6565/1 "2026-09-07T23:20:59Z")

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With the new aux box on a generic ATC spindle, is there a way to have the case pressure stay on for an extra 5 seconds after the spindle is turned off? This lets the chip dust settle before depressurizing the case. On my legacy setup, I had a timer that would hold the relay on for an extra 5 seconds.

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**Author:** ![Eric](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.avidcnc.com/eric/32/3220_2.png) [@Eric](https://forum.avidcnc.com/u/Eric)\
**Post date:** [September 8, 2026, 11:49am UTC](https://forum.avidcnc.com/t/aux-box-case-pressure-outlet/6565/2 "2026-09-08T11:49:26Z")

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There’s no user facing setting to do this. To make this work properly you’d need to edit the PLC which is not an easy task.