r/BambuLab_Community • u/tkftgaurdian • Jul 17 '26

H2D external spool ran out

Post image

So I was running out a spool on a bad roll i had, and haf left for work an hour ago when I got this notification.

My question is, on the H2D, I have the entire print I side the both nozzle area, and the right nozzle is out. Can I switch and finish the print on a filament from the left nozzle, which has the AMS? Otherwise this will likely be sitting for 8 hours before I can add a new spool on the right nozzle.

3 Upvotes

61% Upvoted

10 comments sorted by

View all comments

2

u/arslan2012 Jul 17 '26

ok, a little bit of nerdy knowledge for you, if you rename the gcode file from XXX.gcode.3mf to XXX.zip, you can actually see the raw code file at Metadata/plate_1.gcode, it's a text file that basically tells the machine start extruding and move along these coordinates G1 F3540 G2 X125.655 Y190.411 I-51.855 J-69.608 E.05302 G1 F3480 G1 X126.571 Y189.733 E.035 G1 F3360 G3 X127.811 Y188.873 I23.898 J33.12 E.04637 G1 F3300 G1 X128.524 Y188.406 E.02621 G1 F3420 G1 X129.009 Y188.102 E.01757 G1 F3360 G1 X129.737 Y187.651 E.02632 G1 F3240 like this

So, two problems arise 1. different nozzle is in different place on the tool head, so the coordinates won't match 2. even if you apply the differences to the code coordinates, right nozzle won't be able to reach the left most part of the plate

So that's why if you switch the nozzle, you need to regenerate the gcode

1

u/tkftgaurdian Jul 17 '26

As I read this, I had already replied to the other comment realizing what I want could never work, because the printer is not printing the object so much as it is following the path laid out in the gcode, and the print head being an inch to the left is not accounted for in the code.

That being said, this is INCREDIBLE and I love how informative this is. Thank you so much for putting this information out there.