Comments (3)
blacslam
commented on May 18, 2024
Hi. I have a problem with thermistor reading issue, and searched over the internet, and didnt found much useful info, so may be if you have a time, you can help me.
I made a RAMPS-FD v2 rev B myself, and all works great, but 100k thermistor shows about 100-110 degree celsius all the time. When i try to hot it, i see some rising temp reading, but only for 120 degrees, when real temp is about 300-400 degrees. When i unplug RAMPS from DUE, temp reading rise to 230 celsius. May be such case nown to you, and yo can give me some advise?
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bobc
commented on May 18, 2024
Are you sure it is not a firmware problem?
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blacslam
commented on May 18, 2024
I checked this several times, using different firmwares. For example i tried latest Repitier for Ramps-FD (with DUE) and for Ramps 1.4 (with Mega) with the same settings, and on mega thermistor readings were correct. And i have a lack of expirience to correctly debug this issue.
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Related Issues (20)
- RAMPS-FD: 5V rail needs more current HOT 3
- RAMPS-FD: Odd tracks around RP801, RP802, RP2, RP3
- RAMPS-FD: Clean up tracks around Arduino Due mounting hole (near Pin 21).
- RAMPS-FD: Outputs D2 and D12 are on when firmware downloaded HOT 1
- RAMP-FD: heater outputs are on if power from Due not present HOT 1
- RAMPS-FD: add I2C EEPROM HOT 1
- RAMPS-FD: add SD connector?
- RAMPS-FD: Improve ground connections HOT 1
- DXF file for RAMPS-FD board HOT 3
- Ramps-FD: I like buy empty pcb HOT 1
- RAMPS-FD: LM7812 gets very hot HOT 1
- GERBER, Schematic and BOM do not match HOT 1
- 5V drivers logic HOT 3
- Update... would it make sense? HOT 121
- RAMPS-FD: Thermistor input protection HOT 1
- RAMPS-FD: U3 crowded for space HOT 1
- RAMPS-FD: Larger physical size resistor packs?
- RAMPS-FD: Move Q201 away from F101 HOT 2
- RAMPS-FD: Replace the ESTOP connector with a locking connector HOT 1
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