Thermistors not working correctly
Good day.
I made Ramps-FD V2.B from github https://github.com/bobc/bobc_hardware/tree/master/RAMPS-FD and have a problem with the thermistors. All other works- endstops, stepper drives, heaters. Use Arduino Due with Repetier firmware. And have such a problem: thermistors not work as should. In Pronterface it shows about 99C in room temperature. When I heated it up to 200C, Pronterface shows about 140C. Thermistors from China, model NTC 3950 specified and 100% working. Checked soldering for few times. Try to specified all types of thermistors in Repetier firmware configurator and in all cases in room temperature shows about 90C and about 120-140C heated up to 200C.
What can be the problem and how can I fix it?
I made Ramps-FD V2.B from github https://github.com/bobc/bobc_hardware/tree/master/RAMPS-FD and have a problem with the thermistors. All other works- endstops, stepper drives, heaters. Use Arduino Due with Repetier firmware. And have such a problem: thermistors not work as should. In Pronterface it shows about 99C in room temperature. When I heated it up to 200C, Pronterface shows about 140C. Thermistors from China, model NTC 3950 specified and 100% working. Checked soldering for few times. Try to specified all types of thermistors in Repetier firmware configurator and in all cases in room temperature shows about 90C and about 120-140C heated up to 200C.
What can be the problem and how can I fix it?
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