RePET BambuLabA1 Adapter

RePET - BambuLab A1 Adaptation (Bracket + Extruder Base + Button)

Short description

Mount kit to adapt RePET (system created by Ecodecat) to the BambuLab A1. 

This set provides:

• X-axis bracket to hold the RePET module/electronics.
• Extruder base that creates a flat surface over the filament sensor.
• Button extension so the toolhead can press the heater’s button at the end of a print via End G-code.
• (Optional) A1 Series Leaver to improve extruder grip on the PET strip (see instructions below).

 

RePET prints directly from PET bottle strips (not 1.75 mm filament).

Get the RePET system here: https://ecodecat.com/pages/repet

 

Print recommendations

• Material: PETG
• Nozzle: ≥0.4 mm
• Layer height: 0.20
• Perimeters: 3–4
• Infill: 15–25% (cubic)
• Supports: Not required

End G-code

At print end, move the toolhead left to press the button and power off the RePET heater.

In Bambu Studio: Printer Settings → Machine → Machine End G-code.

;===== date: 20251123 =====================
G392 S0 ;turn off nozzle clog detect

M400 ; wait for buffer to clear
G92 E0 ; zero the extruder
G1 E-0.8 F1800 ; retract

G91              ; pasar a modo relativo
G1 Z30 F1200     ; subir el cabezal 10 mm a 800 mm/min
G90              ; volver a modo absoluto

G1 X267 F18000
G1 X278 F400
G1 X267 F6000

M140 S0 ; turn off bed
M106 S0 ; turn off fan
M106 P2 S0 ; turn off remote part cooling fan
M106 P3 S0 ; turn off chamber cooling fan
M104 S0 ; turn off hotend
M220 S100  ; Reset feedrate magnitude
M201.2 K1.0 ; Reset acc magnitude
M73.2   R1.0 ;Reset left time magnitude
M1002 set_gcode_claim_speed_level : 0

;=====printer finish  sound=========
M17
M400 S1
M1006 S1
M1006 A0 B20 L100 C37 D20 M40 E42 F20 N60
M1006 A0 B10 L100 C44 D10 M60 E44 F10 N60
M1006 A0 B10 L100 C46 D10 M80 E46 F10 N80
M1006 A44 B20 L100 C39 D20 M60 E48 F20 N60
M1006 A0 B10 L100 C44 D10 M60 E44 F10 N60
M1006 A0 B10 L100 C0 D10 M60 E0 F10 N60
M1006 A0 B10 L100 C39 D10 M60 E39 F10 N60
M1006 A0 B10 L100 C0 D10 M60 E0 F10 N60
M1006 A0 B10 L100 C44 D10 M60 E44 F10 N60
M1006 A0 B10 L100 C0 D10 M60 E0 F10 N60
M1006 A0 B10 L100 C39 D10 M60 E39 F10 N60
M1006 A0 B10 L100 C0 D10 M60 E0 F10 N60
M1006 A0 B10 L100 C48 D10 M60 E44 F10 N80
M1006 A0 B10 L100 C0 D10 M60 E0 F10  N80
M1006 A44 B20 L100 C49 D20 M80 E41 F20 N80
M1006 A0 B20 L100 C0 D20 M60 E0 F20 N80
M1006 A0 B20 L100 C37 D20 M30 E37 F20 N60
M1006 W
;=====printer finish  sound=========

;M17 X0.8 Y0.8 Z0.5 ; lower motor current to 45% power
M400
M18 X Y Z

Optional: A1-Series Feeder Lever (improved grip)

If you notice slipping/under-extrusion/clicking when feeding the PET strip, print this lever to increase traction.

Recommended mod: print the new lever and replace the stock lever, transferring the idler gear/bearing to the printed part. Then remove the stock spring and install a longer M3 screw so it presses directly on the lever as a tension adjuster.

Print tip: PETG or ASA, 3–4 perimeters, 50% infill, lever printed on its side for stronger hinge area.

Safety & Disclaimer

• Community-made; not an official Bambu Lab accessory.
• End G-code edits can cause unexpected motion — test cold first, use slow short moves, and verify clearances; adjust coordinates to your setup.
• Ensure no collisions across full X/Y/Z (bracket, button extension, wiring, cables).
• Files/instructions are provided “as is”; use at your own risk. No warranties; the author(s) are not liable for damage, injury, or loss.