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Help with 450 degree mk3s thermistor  

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daveaz
(@daveaz)
Member
Help with 450 degree mk3s thermistor

I bought a 450 degree high temp thermistor (3x12mm tube) on aliexpress: 

1M Thermistor Temperature For High-Temperature Filaments 450 Degrees Hotend For Prusa MK3S 3D Printer F19E

https://a.aliexpress.com/_mrO2edD

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When I questioned the Spanish sellers about marlin thermistor sensor options all I got back was que?

I have used other hi temp thermistors that use the 66 choice for hotend thermistor but I want to use the correct choice .   Can anyone help me track this down?

Posted : 19/05/2025 12:02 am
Artur5
(@artur5)
Reputable Member
RE: Help with 450 degree mk3s thermistor

Do you really intend to print at 450C with your MK3S or you just want to use this thermistor for a particular reason, although you’ll print within the standard temp. range up to 290C?
Neither this printer nor anything in the Mk3/4 line is designed for such temperatures. Electronic components, steppers, mechanical and 3D printed parts will suffer a drastic decrease of lifespan if you print on a regular basis above 300-320C, let alone 450C.

Posted : 19/05/2025 4:01 pm
daveaz
(@daveaz)
Member
Topic starter answered:
RE: Help with 450 degree mk3s thermistor

no, i bought the thermistor to use on a high temp hot end for a cr10s, thinking that this thermistor is similar to a different one i bought on aliexpress that actually had marlin setup parameters.  thus my question remains, how would i set up the right marlin thermistor choice for this thermistor?

Posted : 19/05/2025 7:34 pm
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