Bambu Lab - Short load line - reduce waste and time | G-code trick

Bambu Lab - Short load line - reduce waste and time | G-code trick

The original load line is very long to build up the pressure. With this trick the distance is reduced to arround 1/3rd.

Now you safe time on every print and produce less waste.
This should work on all Bambu Lab printers, but the G-Code could be different. Below you see my G-Code for a P1S.

To-Do:

Go into BambuStudio or OrcaSlicer and search for your printer (should work an all Bambu printers)
- click the 'little icon' next to the printer (1)
- In the printer settings, click on 'Machine G-code' tab (2)
- In the 'Machine start G-code' section (3), scroll down and look for the lines

;===== noozle load line ===============================
…….
G0 X240 E15 F{outer_wall_volumetric_speed/(0.3*0.5)     * 60}
G0 Y11 E0.700 F{outer_wall_volumetric_speed/(0.3*0.5)/ 4 * 60}
G0 X239.5
G0 E0.2
G0 Y1.5 E0.700
G0 X18 E15 F{outer_wall_volumetric_speed/(0.3*0.5)     * 60}
M400

The values of X,Y and E are changed to arround 1/3rd of the original value, resulting in:

;===== noozle load line (shortened) ===============================
…..
G0 X80 E5 F{outer_wall_volumetric_speed/(0.3*0.5)     * 60} ; shortened line start
G0 Y4 E0.25 F{outer_wall_volumetric_speed/(0.3*0.5)/ 4 * 60}
G0 X79.5
G0 E0.07
G0 Y1.5 E0.25
G0 X18 E5 F{outer_wall_volumetric_speed/(0.3*0.5)     * 60} ; shortened line end
M400

- now safe your 'new' printer profile (use a different end naming or such) and select it as your 'printer' in the dropdown menu.

Notes:

- Bambu may change the printer profiles in the future, make sure you always check if they added this feature (maybe?!)
- I recommend after a firmware/software/profile upgrade to do this steps again - so you make sure to benefit from the latest versions and don't mess up things

AS WITH ANY CUSTOM G-CODE, PLEASE REVIEW BEFORE USING, AND USE AT YOUR OWN RISK. I AM NOT RESPONSIBLE FOR YOUR PRINTER.

Btw: check out my other trick aswell to reduce the print time here:
https://www.printables.com/model/713146-bambu-lab-faster-start-reduce-waiting-time-g-code-