Need advice on Thermistors March 26, 2014 04:27PM |
Registered: 10 years ago Posts: 37 |
Re: Need advice on Thermistors March 26, 2014 11:34PM |
Registered: 12 years ago Posts: 258 |
Re: Need advice on Thermistors March 27, 2014 11:01AM |
Registered: 10 years ago Posts: 37 |
Quote
DaveX
#1: You can use it, but the B=3950 vs B=3974 would read about 2C low around 200C.
Quote
DaveX
#2: Your new thermistor is probably a good replacement, since the 1% tolerance is better than the 3% tolerance
Quote
DaveX
#3: Use/Make a table that matches your actual thermistor. [www.geeetech.com] has an old sample table and a datasheet. Or you could read a couple of those values off of the datasheet and plug them into createTemperatureLookupMarlin.py Or, if you can measure temperatures well, you could measure three actual resistances and temperatures and plug them into the script and get a well-calibrated table.
Quote
DaveX
Hey, the given sample table appears to match the Marlin table 60.
Re: Need advice on Thermistors March 27, 2014 12:21PM |
Registered: 10 years ago Posts: 329 |
Re: Need advice on Thermistors March 27, 2014 12:24PM |
Registered: 12 years ago Posts: 258 |
Re: Need advice on Thermistors March 27, 2014 01:28PM |
Registered: 10 years ago Posts: 37 |
Quote
dave3d
You can get the proper thermistor here:
[www.rapidonline.com]
I bought half a dozen as spares. Quick delivery.