Parametric Bambu Lab Spool Adapter & Spacer

Quickly transfer filaments to Bambu Lab spools without re-spooling by using this quick print adapter & spacer! It's customizable so you can make almost any filament brand cardboard core compatible to Bambu Lab spools!

Print two (2) copies – one on each spool core end.

PROBLEMS

Filaments that come with cardboard spools can be transferred to Bambu Lab reusable spools (and compatible spools) without the need to rewind. The cardboard sides are removed and the cardboard spool core is transferred to the reusable spool. However, some filament brands have varying spools with their spool core either wider than Bambu Lab's or shorter (narrower spool) so the spool core isn't tightly fixed into the reusable spool.
Most printable spool core adapters are printed with the entire height of the spool core which uses more plastic than necessary.

SOLUTION

Create a program that would allow users to:

Customize the diameter of the adapter compensate for wider spool cores.
Customize the height of the spacer to compensate for shorter spool cores.
Print an adapter and spacer as one part using only minimal amount of filament.
Be able to add text to identify the brand the adapter is for and the size of the adapter.

THE PROGRAM

This is a parametric 2-in-1 spool adapter & spacer for the Bambu Lab reusable spools for cardboard spool cores that are either wider and/or shorter than Bambu Lab's. Programmed in OpenSCAD, this adapter and spacer uses minimal amount of filament and is easy to install.

This design uses "little teeth" to grip the cardboard spool core. Provided are STLs for Overture and Inland but you can easily modify the parameters to suit your filament brand.

PARAMETERS

spool_inner_diameter	- minimum of 87mm - width of the inside of the cardboard spool core when measured across the center
spacer_thickness	- thickness of the spacer to compensate for cardboard spool cores that are narrower than Bambu Lab spool - some filament brands don't require spaces like Inland as the cardboard core is almost the same width as the Bambu Lab core
txt	- engraved onto the underside of the brim; aids in identifying for which brand the adapter is for - if spacer_thickness is less 0.8mm, txt will not be produced

INSTRUCTIONS

Download OpenSCAD to open the script then follow the steps below:

1. Enter PARAMETERS based on the measurements of the filament spool.
2. Press F6 to render 3d model
3. Use File -> Export -> Export as STL, to export the STL file

Excited to see for which spool brands you'll be using this! Please share your parameters and post your makes!

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