HT Hotend Upgrade (for CORE One/+ und CORE One L)
 
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BlackSector
(@blacksector)
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HT Hotend Upgrade (for CORE One/+ und CORE One L)

I have a problem regarding the HT Hotend Upgrade (for CORE One/+ and CORE One L). The maximum nozzle temperature in the Core One is limited to 260°C, but the upgrade should allow 400°C. How do I configure the firmware to allow me to set a temperature above 260°C?

Veröffentlicht : 22/01/2026 11:03 am
jan.d.slay
(@jan-d-slay)
Estimable Member
RE: HT Hotend Upgrade (for CORE One/+ und CORE One L)

https://forum.prusa3d.com/forum/english-forum-original-prusa-i3-mk4s-user-mods/print-pei-mk4-high-temp-450-c-mod-is-here/

https://github.com/metacollin/Prusa-Firmware-Buddy/blob/mc_high_temp/README.md

Core One is limited to 260°C,

I hope that's a typing error.

 

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Veröffentlicht : 22/01/2026 11:20 am
BlackSector
(@blacksector)
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Themenstarter answered:
RE: HT Hotend Upgrade (for CORE One/+ und CORE One L)

Sorry, 290°C

Veröffentlicht : 22/01/2026 11:30 am
hyiger
(@hyiger)
Noble Member
RE: HT Hotend Upgrade (for CORE One/+ und CORE One L)

 

Posted by: @blacksector

I have a problem regarding the HT Hotend Upgrade (for CORE One/+ and CORE One L). The maximum nozzle temperature in the Core One is limited to 260°C, but the upgrade should allow 400°C. How do I configure the firmware to allow me to set a temperature above 260°C?

If you are referring to this: HT Hotend Upgrade it won't be available until they release the firmware to support it. Currently the max temp is 290°. There is unofficial firmware as linked by @jan.d.slay but use at your own risk (etc etc). 

Veröffentlicht : 22/01/2026 2:31 pm
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