# Prop guards vibrating

**URL:** <https://forum.theavr.org/t/prop-guards-vibrating/608>\
**Category:** AVR Drone Hardware\
**Created:** [October 2, 2023, 4:22pm UTC](https://forum.theavr.org/t/prop-guards-vibrating/608 "2023-10-02T16:22:26Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![dwburns](https://avatars.discourse-cdn.com/v4/letter/d/34f0e0/32.png) [@dwburns](https://forum.theavr.org/u/dwburns)\
**Post date:** [October 2, 2023, 4:22pm UTC](https://forum.theavr.org/t/prop-guards-vibrating/608/1 "2023-10-02T16:22:26Z")

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Whenever I did my second flight test, my prop guards started vibrating as shown in the gif. This did not happen on our first flight test only a few days before. Is anyone else having this problem or know how to fix it?  
 ![IMG_6701](https://canada1.discourse-cdn.com/flex007/uploads/avr/original/1X/3f1ddab27f417f71d07012c92f61d437935b00e5.gif)

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**Author:** ![Jack\_Ewing](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.theavr.org/jack_ewing/32/29_2.png) [@Jack\_Ewing](https://forum.theavr.org/u/Jack_Ewing)\
**Post date:** [October 3, 2023, 9:12pm UTC](https://forum.theavr.org/t/prop-guards-vibrating/608/2 "2023-10-03T21:12:11Z")

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we have had some shaky prop guards in the past (not that bad) all we had to do was tighten everything and then check for cracks in the guards.

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**Author:** ![nathan](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.theavr.org/nathan/32/4_2.png) [@nathan](https://forum.theavr.org/u/nathan)\
**Post date:** [October 5, 2023, 1:02am UTC](https://forum.theavr.org/t/prop-guards-vibrating/608/3 "2023-10-05T01:02:17Z")

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1. Please, _please_, _ **please** _ fly your drone somewhere that has more open area and away from people and fragile objects. Having a motor cable suddenly come unplugged and the drone spinning out of control is not unheard of. I usually test fly my drone outdoors at a park or in my lawn.
2. This is an example of a [resonant frequency](https://en.wikipedia.org/wiki/Resonance). Tightening the standoff screws and/or increasing thrust will likely make this go away. Some Loctite or other threadlocker on those standoffs would probably be a good idea.