¶ Installation
¶ Size
¶ Connection
¶ klipper
¶ 1. Install software module
cd ~
git clone https://github.com/markniu/bd_pressure.git
chmod 777 ~/bd_pressure/klipper/install.sh
~/bd_pressure/klipper/install.sh
¶ 2. Configure Klipper
- Upload the bd_pressure.cfg into the printer config folder and add [include bd_pressure.cfg] into the printer.cfg ,
[include bd_pressure.cfg]
- Edit the bd_pressure.cfg
Change the pins to your actual use in the section [probe], Choose the port(i2c or usb) used in the section [bdpressure bd_pa]
¶ 3. OrcaSlicer:
-
Disable the Pressure advance in the Material settings.
-
Add the following G-code lines into the beginning of the Start_Gcode in the slicer, then it will do pressure advance calibration with your setting and automatically set the right PA value.
G28 ; Home all the axis
G1 Z30 ; Move to the poop position. You can modify it depending on your printer.
G1 X240 Y240 ; Move to the poop position. You can modify it depending on your printer.
PA_CALIBRATE NOZZLE_TEMP=[first_layer_temperature] MAX_VOLUMETRIC=[filament_max_volumetric_speed] ACC_WALL=[outer_wall_acceleration] TRAVEL_SPEED=[travel_speed] ACC_TO_DECEL_FACTOR=[accel_to_decel_factor]
¶ Note:
- The hotend must be vertical to the bed, this note is only for E3D style hotend
- Problem:
If the hotend is not vertical, the probe data maybe be not stable. - Solution:
please rotate the whole hotend or PA sensor, for example 180 degree
-
FAN:
This sensor is very sensitive and it can sense the vabration of the fan on the hotend too.
that means if the probe accuracy must be controlled within 0.005 millimeters, vibration issues from the hot-end fan must be taken into account.
you can close the hotend fan by setting the hotend to low temperature before do probe -
The hotend and the bed must be installed tightly.