# I wish to join the fight!

**URL:** <https://community.openglow.org/t/i-wish-to-join-the-fight/731>\
**Category:** General Discussions\
**Created:** [June 6, 2020, 1:31am UTC](https://community.openglow.org/t/i-wish-to-join-the-fight/731 "2020-06-06T01:31:49Z")\
**Posts on this page:** 1\
**Showing post:** 6

<div class="post-metadata">

**Author:** ![Drelleum](https://community.openglow.org/user_avatar/community.openglow.org/drelleum/32/159_2.png) [@Drelleum](https://community.openglow.org/u/Drelleum)\
**Post date:** [June 6, 2020, 9:40pm UTC](https://community.openglow.org/t/i-wish-to-join-the-fight/731/6 "2020-06-06T21:40:03Z")

</div>

lol, I was literally just reading this post:

> [@Exhaust Fan Removal/Replacement on the Glowforge](https://community.openglow.org/t/exhaust-fan-removal-replacement-on-the-glowforge/251/44):
>
> **NOTE: Be VERY careful about what you hook up to that PWM line**. There is _ZERO_ input protection on _ANY_ of the IO pins on their factory control board. If you accidentally put 12V into the PWM output, you WILL fry the microprocessor (I know this from personal experience).

so yes, I guess he did.

---

_[View the full topic](https://community.openglow.org/t/i-wish-to-join-the-fight/731)._