Maxing out at 305c - ideas thoughts?
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Hi,
Did you try tuning at a reachable temp?
Frederick
Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6
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@fcwilt I can reach 305c so 350c seems reasonable since the thermistor can reach 450c accurately
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@supset said in Maxing out at 305c - ideas thoughts?:
@fcwilt I can reach 305c so 350c seems reasonable since the thermistor can reach 450c accurately
I tune my normal heaters at 190 even though they can reach higher.
So it may be that if you tune at 300 it will work fine at 450.
Frederick
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@fcwilt really, I’ll give it a try,...
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Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6
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@fcwilt ya,...
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@fcwilt it seems like that’s just a runaway setting, not an active or target setting
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@supset said in Maxing out at 305c - ideas thoughts?:
@fcwilt it seems like that’s just a runaway setting, not an active or target setting
True but perhaps it could interfere with tuning?
Frederick
Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6
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@fcwilt you’re suggesting, commenting it out, perhaps yes
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@fcwilt it seems the M143 Command possibly works, I commented it out, and got this, default 285c limit
I put it back and restarted, and the error disappeared
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Hi,
OK so the M143 setting does play a role in the tuning process and your previous value of 445 should not have interfered at all when using the 350 target temp.
Did you get a chance to try 300 when tuning?
I am thinking perhaps that the firmware isn't expecting such high temps like 350 and has tuning issues.
And if you could get it tuned for a lower temp like 300, 310, 320, etc then the heater might work fine for higher temps when it was simply heating.
Frederick
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https://forum.duet3d.com/topic/17972/config-json-update-not-works-configtool-nozzle-temp-limit
It looks like there is a bug in the config tool where M143 isn't being generated for the hotend, which would lead to the default limit being applied.
I've also asked if there is a hard upper limit for setting M143.
