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Thread: Are Thermistors interchangeable?
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10-22-2020, 12:45 PM #1
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Are Thermistors interchangeable?
I'm upgrading my old hotend to a Prometheus V2 but the new heat block doesn't provide a big enough hole for the original thermistor cartridge. If I were to order one that would fit the heat block, would my printer have any issues getting readings from the new thermistor?
Printer: CreatBot DX3
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10-22-2020, 03:49 PM #2
Thermistor cartridge all have a specific table of resistance for a given temperature change.
If you put a different thermistor cartridge in you will need to create data table for that specific thermistor or uses a compatible table.
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10-27-2020, 07:00 AM #3
also they are all rated for different max running temps.
How does a new hotend NOT come with a compatible thermistor ?
Surely a heat cartridge and thermistor are two things a hotend always comes with ?
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10-27-2020, 07:17 AM #4
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Prometheus is currently out of thermistors. I had to order everything separately instead of a full hotend package. However, even if I had their thermistor, I don't know how to load a resistance table into the firmware like what Robers_Clif is suggesting.
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10-27-2020, 12:29 PM #5
How much smaller is the Other heater Cartridge hole than the Original cartridge.
If there is not much difference then make the hole large enough to fit the original cartridge.
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10-27-2020, 01:23 PM #6
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Its only a millimeter smaller in diameter. However, the hole is right on the edge. I'm going to see about getting a new block machined.
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10-28-2020, 10:42 AM #7
most firmwares already have the various thermistor types included - you just have to tell it which one you have.
Or at least all the firmware config files I've seen have this option.
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10-28-2020, 11:45 AM #8
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Do you know if any of the common Firmwares would work for the CreatBot? Or does it have to be a specific one?
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10-28-2020, 12:36 PM #9
you tell it what the thermnistor is.
should be able to do it with the original firmware if you can update the configuration file.
what firmware is it ?
It's just something I've noticed in scrolling through config files for various firmwares - thety all have a section to tell it ehat type of thermistor it is.
Off the top of my head I can't recall the different types.
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11-02-2020, 10:13 AM #10
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From looking around in forums it seems to be a modified version of Marlin.
Ender 3v2 poor printing quality
10-28-2024, 09:08 AM in Tips, Tricks and Tech Help