# PEEK/nylon hot end

**URL:** <https://forum.snapmaker.com/t/peek-nylon-hot-end/20088>\
**Category:** Showcase & Prints\
**Created:** [July 25, 2021, 11:26pm UTC](https://forum.snapmaker.com/t/peek-nylon-hot-end/20088 "2021-07-25T23:26:14Z")\
**Posts on this page:** 1\
**Showing post:** 11

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**Author:** ![stewl](https://avatars.discourse-cdn.com/v4/letter/s/e5b9ba/32.png) [@stewl](https://forum.snapmaker.com/u/stewl)\
**Post date:** [July 26, 2021, 8:53pm UTC](https://forum.snapmaker.com/t/peek-nylon-hot-end/20088/11 "2021-07-26T20:53:20Z")

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Firmware version 1.12.2 contains the levelling fix and changed little else so doesn’t have any of the “Fixes” in 1.13.1 that seem to be causing lots of problems. I think people should at least use 1.12.2

> [@Snapmaker 2.0 Firmware Updates and Downloads](https://forum.snapmaker.com/t/snapmaker-2-0-firmware-updates-and-downloads/5443/15):
>
> Jul 9 2021: Snapmaker2\_V1.12.2 Thank you for your suggestions on how to make the Snapmaker 2.0 better. Your feedback is always appreciated. Here comes the latest version of the Snapmaker 2.0 firmware. Changelog Controller New Features Support “M301” G-code for setting up Hotend PID. Parameters [P\<Value\>] [I\<Value\>] [D\<Value\>] for setting up Hotend PID Bug Fixes Fix a bug where bed mesh used in calibration didn’t match one used in printing. Improvment Improve the serial message …

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