Quotefrankvdh A little more information about what you're trying to achieve would be helpful. It sounds like you want to have two heaters and two thermistors in a single hot-end? What do you want to measure with the second thermistor? How will that differ from the first thermistor? If it's not significantly different, then just use one thermistor to control both heater circuits. But then, why noby zhldemeng - RAMPS Electronics
Quoteo_lampe You'd have to use the Fan output as second extruder heater ( D9 ). Also #define MOTHERBOARD BOARD_RAMPS_EEB ( #34 ) instead of RAMPS_EFB in Marlins configuration.h. Then change thermistor definition for T1 to match the new thermistor. But my T1 used for hot bed thermistor already. And T0 used for hot end thermistor. May I connect my thermistor to T2? If can, how I set up in repeiby zhldemeng - RAMPS Electronics
But my T1 used for hot bed thermistor already. And T0 used for hot end thermistor. May I connect my thermistor to T2? If can, how I set up in repeiter-hot and configuration.h?by zhldemeng - RAMPS Electronics
Hi, I m not sure whether I can parallel connect two 12V 30W heaters instead of a 12V 40W heater or not? Thank u for ur help.by zhldemeng - RAMPS Electronics
Thank u very much for ur help. I will try it.by zhldemeng - RAMPS Electronics
Hi, I m new here. I want to add one more heater and thermistor on my printer hotend. How to connect wires on RAMPS1.4 if I want to add one more heater and thermistor on hot end. And hoe to set up in configuration.h ? Thank you for your help.by zhldemeng - RAMPS Electronics