Fast Start for Bambu Lab A1 - Start G-Code - v1.1 - Free 3D Print Model

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IP Report

Print Profile(1)

All

H2S

X1E

X1 Carbon

P1S

P2S

H2D Pro

H2D

A1 mini

P1P

X2D

H2C

A2L

0.2mm layer, 2 walls, 15% infill

Designer

10 min

1 plate

5.0(1)

Open in Bambu Studio

Boost

103

164

Released

Description

This is experimental start g-code, that cuts down prep time on BambuLab A1.

Open Bambu Studio.
Open your printer settings.
Open machine gcode tab.
Select all from machine start g-code, delete and paste this code :

;===== machine: A1 ========================
;===== author: amplabs =====================
;===== date: 20260111 =====================
;===== version: 1.1 =====================
G91
G0 Z5 F600 ; mniejsze uniesienie głowicy przed czyszczeniem
G90
M106 P2 S0
M106 P1 S0
M104 S170
M140 S[bed_temperature]
M190 S[bed_temperature]
M109 S170
G28 ; homing X, Y, Z
M104 S[nozzle_temperature]
M109 S[nozzle_temperature]
G0 Z5 F300 ; mniejsze uniesienie
G92 E0
G1 Y2 F1000 ; mniejsze przesunięcie w osi Y
G1 Z0.22 F300
G1 X80 F600
G1 X120 E18 F360
G0 Z10 F600
G92 E0
G5
Save as new profile and enjoy more than 10 times faster prep time.

Ideal for small parts that do not require that much precision as this profile removes most of calibration features.

This is non official g-code, you use this at your own risk.

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Documentation (1)

Other Files (1)

Fast Start G-code v1.1.txt

Comment & Rating (16)

@rmfurm

Hi, this code made the extrusion go off the bed. Otherwise, worked great :)

The designer has replied

@amplabs

I didn't think of that when I wrote it, but if your plate is fliped it works just fine. Thanks for the review.

@3DBrooklyn

Replying to @ExtasisStudio :

This is what I changed (via chatgpt) and it centers the prime line and moves it back a little - G91 G0 Z5 F600 G90 M106 P2 S0 M106 P1 S0 M104 S170 M140 S[bed_temperature] M190 S[bed_temperature] M109 S170 G28 ; homing X, Y, Z G0 Z5 F300 G92 E0 G92 E0 G0 X88 Y3 Z0.2 F600 ; move to 3 mm back from front, centered start ( (256-80)/2 = 88 ) G1 E2 F200 ; small prime G1 X168 E12 F600 ; draw 80 mm prime line across X G92 E0 G0 Z10 F600 G92 E0 M104 S[nozzle_temperature] M109 S[nozzle_temperature] G5

@gravitonus

Print Profile

0.2mm layer, 2 walls, 15% infill

@sp3ctrum

I also tried this gcode, but unfortunately it also creates a line outside the print bed, and the nozzle remains too dirty, ruining every print, it would be interesting to implement at least a quick cleaning

Show original

@Zeynel

does this work for the A1 Mini as well ? i checked the G-Code with OpenAI, looks like there ist no A1 only related Code.

The designer has replied

@amplabs

I don't have a1 mini to test that and I don't want to write it blind, but there is one dedicated to A1 mini. https://forum.bambulab.com/t/optimized-a1-mini-start-g-code-quick-and-quiet-version/116364/37

(Edited)

@KingForg

Replying to @amplabs :

ive used this on my a1 mini just fine

@Reaper9789

This doesnt work. the printer was just stringing everywhere.

The designer has replied

@amplabs

Please ensure that the tip of the nozzle is clean, if there are remains of filament on there it can cause wrong homing position on the z-axis, which can cause the print to start slightly in the air. If this doesn't help try leveling the bed and check if the custom g-code is properly pasted as shown in the instruction.

@user_1157017481

Immediately after homing, insert M104 S[nozzle_temperature]M109 S[nozzle_temperature], otherwise it will do the prime line with the residual temperature of the nozzle from the last print, which was about 170° for me... A1

The designer has replied

Show original

@amplabs

Thanks for pointing that out, should be fixed now.

@jojodio

could wait for bed and nozzle to reach temps after homing to save some seconds, it can heat while homing

(Edited)

@jojodio

what does gcode G5 do ?

@heii

This Gcode is not suitable for use in the AMS as it cannot change materials, but it is very convenient and time-saving for quick first-layer testing

Show original

@Tigerxx7

Great I am using this for little prints where the prepare time is longer than the print time itself, even though I already modified the original gcode to be shorter (you can find it on my page: https://makerworld.com/de/models/2150117-a1-custom-start-gcode ), or for prototypes where I want them done fast and quality doesn't matter.

(Edited)

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