Printhead cooldown after printjob

Vertex 3D Printer Vertex - Printer software (repetier, slicer, ...)
1
  1. After printjob is done, the extruder-heater stops, the head moves to parkposition and all printhead-fans are stopped immediately. (Only the bottom fan continuous for a moment). Would it not be better to continue the cooling for longer liftime of the printhead parts?

Is it possible do change this? Maybe in the next firmware update?

  1. Issue:
    How and where can I permanent change the initial preheat temperatur for pla and abs? Changing under settings doesn’t work ??

  2. Question:
    Is it possible to adjust the Thermistor?

Thanks
Mike

2

[quote=“lem”]1. After printjob is done, the extruder-heater stops, the head moves to parkposition and all printhead-fans are stopped immediately. (Only the bottom fan continuous for a moment). Would it not be better to continue the cooling for longer liftime of the printhead parts?

Is it possible do change this? Maybe in the next firmware update?

  1. Issue:
    How and where can I permanent change the initial preheat temperatur for pla and abs? Changing under settings doesn’t work ??

  2. Question:
    Is it possible to adjust the Thermistor?

Thanks
Mike[/quote]

1: You can manually alter the start or end gcode in the slicer configuration window.

2: You can change the preheat temperature in settings but you need to save the values in the eeprom for the values to be active. You can do this also in the settings menu.

3: What do you mean?

3

for question 2. you can also change the default filament temperature in the Cura profile and save it.

4

@VEL327:
for question 3 (Is it possible to adjust the Thermistor?)
-> The Display is not indicating the real temperatur! Display shows 210°C, but measured -> ca. 220-225°C !!
-> But in the meantime I have changed the thermistor setting in the Firmware (#define TEMP_SENSOR_0 10 // not 5)
-> now it’s ok an i’m printing pla with 195-200°C (real temeperatur after Firmware change) for best surface results

for question 1: How can i alter the end g-code with a delay of 60s before top-fan cut off? (Like the setting for the bottom fan in Firmware).
Or is ist not required/recommended to cool down the printhead after print Job done?

thanks

Mike

5

Hello!

got the same question

How can i alter the end g-code with a delay of 60s before top-fan cut off? (Like the setting for the bottom fan in Firmware).
Or is ist not required/recommended to cool down the printhead after print Job done?

Or how can i change it in the Firmware?

Thanks
Christian

6

I don’t think it is necessary to cool down the hotend with the part cooler fan.

For a delay or dwell in G-Code use code G4.
eg. to insert a delay of 5 sec use the line:

G4 P5

cheers

Christian