# Best way to increase hot end temperature to 300

**URL:** https://marlin.crc.id.au/forum/t/best-way-to-increase-hot-end-temperature-to-300/860
**Category:** Firmware Builder
**Created:** [26 April 2022 18:19 UTC](https://marlin.crc.id.au/forum/t/best-way-to-increase-hot-end-temperature-to-300/860 "2022-04-26T18:19:19Z")
**Posts on this page:** 7
**Page:** 1

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### Author: ![ecard](https://marlin.crc.id.au/forum/user_avatar/marlin.crc.id.au/ecard/32/156_2.png) [@ecard](https://marlin.crc.id.au/forum/u/ecard)
#### Post date: [26 April 2022 18:19 UTC](https://marlin.crc.id.au/forum/t/best-way-to-increase-hot-end-temperature-to-300/860/1 "2022-04-26T18:19:19Z")

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I’m using the nightly build for my Ender 3 Max 4.2.7.

I have upgraded my hot end to the Micro Swiss Direct Drive, and now I would like to increase the maximum temperature from 260 to 300C. Any easy way to do this?

Thanks, Eric

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### Author: ![CRCinAU](https://marlin.crc.id.au/forum/user_avatar/marlin.crc.id.au/crcinau/32/1337_2.png) [@CRCinAU](https://marlin.crc.id.au/forum/u/CRCinAU)
#### Post date: [28 April 2022 04:47 UTC](https://marlin.crc.id.au/forum/t/best-way-to-increase-hot-end-temperature-to-300/860/2 "2022-04-28T04:47:21Z")

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You would need to do this in the [Firmware Builder](https://marlin.crc.id.au/builder/).

I believe the recommended maximum for the MS-DD is 285c - but I can’t quite find that atm…

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### Author: ![ecard](https://marlin.crc.id.au/forum/user_avatar/marlin.crc.id.au/ecard/32/156_2.png) [@ecard](https://marlin.crc.id.au/forum/u/ecard)
#### Post date: [28 April 2022 13:31 UTC](https://marlin.crc.id.au/forum/t/best-way-to-increase-hot-end-temperature-to-300/860/3 "2022-04-28T13:31:24Z")

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Yes I will try the Firmware Builder… I was hoping for a solution without having to re-flash 🙂

And yes, the MSDD allows you to get to 300c. It’s all metal 🙂 And also mentioned in their doc

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### Author: ![Daniel\_Harris](https://marlin.crc.id.au/forum/user_avatar/marlin.crc.id.au/daniel_harris/32/804_2.png) [@Daniel\_Harris](https://marlin.crc.id.au/forum/u/Daniel_Harris)
#### Post date: [10 March 2023 13:45 UTC](https://marlin.crc.id.au/forum/t/best-way-to-increase-hot-end-temperature-to-300/860/4 "2023-03-10T13:45:26Z")

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What did you figure out? I have same issue, different DD but all metal.

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### Author: ![ecard](https://marlin.crc.id.au/forum/user_avatar/marlin.crc.id.au/ecard/32/156_2.png) [@ecard](https://marlin.crc.id.au/forum/u/ecard)
#### Post date: [10 March 2023 14:20 UTC](https://marlin.crc.id.au/forum/t/best-way-to-increase-hot-end-temperature-to-300/860/5 "2023-03-10T14:20:50Z")

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You have to customize your own firmware. But, I moved to Klipper 😜

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### Author: ![Daniel\_Harris](https://marlin.crc.id.au/forum/user_avatar/marlin.crc.id.au/daniel_harris/32/804_2.png) [@Daniel\_Harris](https://marlin.crc.id.au/forum/u/Daniel_Harris)
#### Post date: [10 March 2023 18:59 UTC](https://marlin.crc.id.au/forum/t/best-way-to-increase-hot-end-temperature-to-300/860/6 "2023-03-10T18:59:25Z")

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Lol thanks for the response. What are you running the Klipper on?

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### Author: ![kent\_r](https://marlin.crc.id.au/forum/user_avatar/marlin.crc.id.au/kent_r/32/826_2.png) [@kent\_r](https://marlin.crc.id.au/forum/u/kent_r)
#### Post date: [17 March 2023 06:28 UTC](https://marlin.crc.id.au/forum/t/best-way-to-increase-hot-end-temperature-to-300/860/7 "2023-03-17T06:28:03Z")

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There is a 15deg heating limit window in Marlin. If you absolutely need 300 your max needs to be higher by at least 15deg. Verify thermistor limits and accuracy near limits.