# Interesting discovery

**URL:** <https://community.inventables.com/t/interesting-discovery/46491>\
**Category:** Uncategorized\
**Created:** [December 3, 2017, 4:51am UTC](https://community.inventables.com/t/interesting-discovery/46491 "2017-12-03T04:51:18Z")\
**Posts on this page:** 2\
**Page:** 0

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**Author:** ![LarryM](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/larrym/32/51450_2.png) [@LarryM](https://community.inventables.com/u/LarryM)\
**Post date:** [December 3, 2017, 4:59am UTC](https://community.inventables.com/t/interesting-discovery/46491/2 "2017-12-03T04:59:51Z")

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> [@PhilJohnson](#):
>
> if you use the pause button in UGS or at least the version I have it does not shut off the spindle

Is there a delay between the time you press the pause button and when it actually stops?

If so, UGCS is most likely just stopping the send queue as opposed to sending the feed hold command to grbl.

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<div class="post-metadata">

**Author:** ![LarryM](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/larrym/32/51450_2.png) [@LarryM](https://community.inventables.com/u/LarryM)\
**Post date:** [December 3, 2017, 5:23am UTC](https://community.inventables.com/t/interesting-discovery/46491/4 "2017-12-03T05:23:09Z")

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Just checked PicSender and it turns the spindle/laser off when you press the “Pause” button.