Whistle Crew Wiki

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====== Bambu Labs Printers ======
You can find Bambu Labs printers here: https://bambulab.com/en-us

Bambu printers can consume any STL or 3MF linked on this site. Check back for specific full-plate files for Bambu printers. 

==== Pre Plated 3 MFs ====

{{ :wiki:bambu_p1s_38mm_micro_bitonal_half_height_-_updated_01282026.3mf | Updated Remixed Bitonal - 38mm - half height hole - 116 on a plate with 3 colors - 6 hours on P1S }}
  * **Note**: After slicing the plate, if you want to, you can remove the color swaps by removing them from the right vertical bar, and slicing the plate again. 

{{ :wiki:bambu_p1s_38mm_micro_bitonal_-_thinner_-_.24mm_layers_-_customnumbers.3mf | Custom Number Version of 38mm Remixed Bitonal with FaceDown and Top Extrusion}}

{{ :wiki:bambu_p1s_38mm_micro_bitonal_-_thinner_-_.24mm_layers_-_customnumbers_-_single_color-swap_at_last_layer.3mf | Custom Number Version of 38mm Remixed Bitonal with Top Extrusion for last layer color swap}}
  * **Note** To update the phone number for these files in Bambu Studio, click on Objects -> Assembly -> text_shape -> Edit Text


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[[https://www.printables.com/model/1563396-compact-dual-chamber-whistle-v21|Compact Dual-Chamber Whistle V2.1]]
  * {{ :wiki:whistle_v2.1_v7_-_bambu_x1c_-_mako_hotend_-_150_count.3mf | 150x plate - X1C }}
  * {{ :wiki:whistle_v2.1_v7_-_bambu_x1c_-_mako_hotend_-_100_count.3mf | 100x Plate - X1C }}
    * **Note**: Mako hotend is used here, so adjust flow according to your own setup, or use your own filament profiles. 
    * There are filament profiles in these 3mfs for Fusion Filaments ABS, Bambu ASA, PolyTerra PLA, and Overture PLA

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==== Filling a plate ====
You might want to fill a plate with your whistle of choice.
Recommend using the "Clone" option in Bambu Studio, over the "Fill bed with copies" option.

You can see these options when you select a whistle/object and then right click on it. Select "Clone", and then enter the number of objects you want on the print plate. The software will spawn them around the existing object. 

When you select Clone, there's some minimal spacing between objects, so that printed objects don't merge together. When selecting "Fill bed with copies", there is no spacing between objects and may result in needing to break the whistles apart and potentially causing failures.

"Fill bed with copies" will also ignore your print plate boundaries, as well as the 'exclusion area' in the lower left corner of the print plate. 

{{:wiki:cloneorfill.png?200|}}

==== Skipping Print Failures ====
The Bambu Handy app has the ability to mark, during the print run, specific objects to skip, if there are less than 64 objects on the plate.
This is super helpful if you see during the print that there's a few whistles where adhesion failed or started to string while the majority of the rest of your plate has no issues.  
You can mark those objects to "skip" and Bambu will then skip over any objects marked as "skip" and continue printing all other objects. 
You no longer have to stop/cancel the print!

{{:wiki:bambuhandyskip1.png?100|}}{{:wiki:bambuhandyskip2.png?100|}}

==== Merging Objects ====
You can group/merge objects in Bambu Studio, so that a group of whistles can be considered one object.
If you're printing 100+ whistles on a plate, you can group/merge whistles to reduce the number of "objects" on the plate to less than 64 so that you can still take advantage of Bambu's Skip capability.
Select 2+ whistles on the plate, right click and select the "Merge" option.
Recommend merging 2+ whistles and then cloning to fill your plate.

{{:wiki:bambumerge.png?200|}}

==== Multi-Color Tips ====

For models where color changes don't have to be done cleanly, you can save some filament and printing time with the following settings:
  * Disable the Prime Tower
{{:wiki:bambu_disable_prime_tower.png?150|}}
  * Set Flushing Volumes to 0
    - In Bambu Studio, click on Flushing volumes, just above the Filament selection. 
    - Set Multiplier to 0 and click OK

{{:wiki:bambu_flushing_volume_1.png?200|}} | {{:wiki:bambu_flushing_volume_2.png?200|}}


==== Max Volumetric Flow and Ludicrous Mode ====

TL;DR: Be careful with Ludicrous mode with some filaments. It can cause clogs, air printing, and incosistent extrusion.

There is a limit to how much filament a printer can heat, melt, and extrude per second. This is called "Max Volumetric Flow" (MVF), and it's measured in mm^3/s. Bambu's PLA Basic profile sets MVF to 21 mm^3/s.

MVF acts as a speed limit on all toolhead motion. For example, if MVF is 21mm^3/s, the max speed the toolhead can do while extruding is ~280mm/s. When you slice a print with these settings, the slicer will make sure to never move the toolhead faster than 280mm/s.

Bambu printers have "Sport" and "Ludicrous" modes, that essentially speed up all motion the printer makes during a print. **These modes ignore the MVF speed limit.** Bambu's profiles are pretty conservative, and a lot of the time, your filament's MVF is higher than the profile, so it's fine. Sometimes you can get an off spool, or you're using a different brand or type of filament that can't melt that fast, and it can cause you issues.

It's safer to do your own [[https://wiki.bambulab.com/en/bambu-studio/Calibration#max-flowrate|MVF calibration]] (enable developer mode in Bambu Studio first!), and up the speeds in the slicer.