How to tell Klipper I am using high flow nozzle and heater core?

General Discussion
1

Basic Information:

Printer Model: Prusa i3MK3S+
MCU / Printerboard: Einsy
Host / SBC RPi 5
klippy.log

Describe your issue:

I just bought an E3D Heater Core 60W to replace the 40W one I am currently using and a Revo 6 High Flow 0.4mm nozzle. How do I tell Klipper about these two upgrades?

From the product page, they mentioned Klipper.

E3D Revo Support: 60W 104-NT HeaterCore

Am I supposed to put the following somewhere in a configuration file?

****Temperature Sensor:****
**"ATC Semitec 104NT-4-R025H42G"**
2

Hi @printeruser ,

You don’t have to tell Klipper that you’re using a higher-power heater or a high-flow nozzle. For the thermistor type, you can put in your printer.cfg:

[extruder]
...
sensor_type: ATC Semitec 104NT-4-R025H42G
3

Klipper does not care (that much).
The slicer does.

2 Likes
4

Currently in my printer.cfg, I have:

### EXTRUSION

# Extruder
[include klipper-prusa-mk3s/extruders/prusa.cfg]
# [include klipper-prusa-mk3s/extruders/bmg.cfg]

# Hotend
[include klipper-prusa-mk3s/hotends/revo.cfg]
#[include klipper-prusa-mk3s/hotends/v6.cfg]
# [include klipper-prusa-mk3s/hotends/dragon-standard-flow.cfg]
# [include klipper-prusa-mk3s/hotends/rapido.cfg]

[extruder]
# To tune Pressure Advance see https://www.klipper3d.org/Pressure_Advance.html
# default is already set based on hotend, but you can further improve prints by calibrating it to your nozzle and material
# pressure_advance: 0.05
nozzle_diameter: 0.4 # Remember to change this if you change nozzle diameter.
#pid_Kp: 23.862
#pid_Ki: 1.020
#pid_Kd: 139.595

So just put it above or after

nozzle_diameter: 0.4

?

5

Order doesn’t matter. You can put it anywhere in the [extruder] section.

1 Like
7

Done. Thank you

1 Like
8

For the Max volumetric speed, what is the recommended value at mm^3/s for Prusa i3MK3S+ with Einsy board, Klipper, E3D 0.4mm brass Hot End nozzle and 60W heater core?

What else shall I modify in the slicer?

9

You may see here: Determining Maximum Volumetric Flow Rate | Ellis’ Print Tuning Guide

and here: https://teachingtechyt.github.io/calibration.html#speed

10

E3D Support asked me to put also the Analog input pin to the thermistor in the printer.cfg. What is the Analog input pin connected to the thermistor in our Prusa i3MK3S+?

11

Could you please upload a klippy.log so I can check if it’s already configured?

It should be (assuming you plugged the new thermistor into the same port as the old one):

[extruder]
...
sensor_pin: PF0
1 Like
12

klippy.log (31.0 KB)

They sent me this link:
Configuration reference - Klipper documentation

Under Temperature sensors->Common thermistors.

It seems that PF0 has been pre-defined in klipper-prusa-mk3s/mk3s/einsy-rambo.cfg when I used this method to insall Klipper:

dz0ny/klipper-prusa-mk3s: Structured Klipper config for Prusa MK3s 3D printer

Shall I remove the following pre-defined block to avoid confusion and possible conflicts?

[extruder]
nozzle_diameter: 0.400
filament_diameter: 1.750
heater_pin: PE5
sensor_type: ATC Semitec 104GT-2
sensor_pin: PF0
min_temp: 0
max_temp: 305

13

According to that log, everything is setup correctly for the Revo. You shouldn’t need to change anything to use it.

You shouldn’t edit anything under the klipper-prusa-mk3s/ directory. Anything you want to be changed can be overridden in printer.cfg.

1 Like
14

Just make sure to PID tune!