To get this out of the way: I’m making functional parts, I seldom print below 300C, and it’s almost always PET-CF, PPA-CF, headed towards PPS-CF, although have recently been running it with PC-ABS and PC-CF (with the new chamber heater and the properly working insulated heat bed, the PET/PPA-CF don’…

Unless I was totally misinformed, the MAX already has the ZERO hotend. You even posted about it here: [image] New hot end issue Sovol SV08 MAX The 85W Zero/Max hotend likely outflows the microswiss given a decent nozzle. Maybe something in SiC or tungsten ca…

[image] Piledriver: Was poking around in the config, seems to be an upper limit somewhere above 330C in Klipper on the std max, max temp set to ~360C gives klippers temp not in range error, not finding it in any of the config files, wondering if its coded into the extruder board firmware? Goo…

i asked. max has brass version zero has copper version. supposed only difference is hot end material. max tated to 300c, zero to 350c. i run max hotend at 320c for momths no issues , use tq wrench on nozzle swaps. will do same after upgrading. the real ypper limit for the zero is likely the ceramic …

I was able to get around it, it didn’t like me increasing the top end value for the sensor curve, but lets me exceed it fine, which seems odd. Wanted to use higher measured value for better accuracy at 400C. Still beating on it as I want to understand issue… The following works. The commented out s…

[image] Piledriver: they lose efficiency hard over 300c. Also be come more fragile. At some point the wire simply melts.

have considered using a pair of 65w ceramic heaters, one on each side, or a pair of the std (longer) 85w sovol units, but limiting to 70% or such for heat on both sides… the zero/max melt zone is certainly long enough.

Zero hotend upgrade on SV08 Max

Sovol SV08 MAX

Lion July 15, 2026, 11:21am 2

Unless I was totally misinformed, the MAX already has the ZERO hotend.

You even posted about it here:

Topic		Replies	Views
Using SV08 Hotend on the Zero Sovol Zero firmware , advice , klipper	4	655	August 3, 2025
New hot end issue Sovol SV08 MAX firmware , advice , heat-fails , klipper	6	173	July 15, 2026
SV08 Max hotend upgrade Sovol SV08 MAX	11	2369	April 28, 2026
Upgraded hotend in the pipeline? Sovol SV08 MAX	12	1468	December 24, 2025
Extruder temperatures Sovol SV08 MAX	12	833	October 9, 2025

Zero hotend upgrade on SV08 Max

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