Give your Bambu printer a BROFIST - A direct replacement for the stock Bambu carbon filter in the X1C/P1S. It can also function as an added filter at the bottom to the sides (out of the way of the bed). A bit of tape between the lid & box, then doubled over on the outside will serve as a pull tab. Or you can use tweezers. The world is your oyster! Save money by buying your carbon filtration material in bulk.

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To install in a vertical orientation at the bottom of the chamber (not required, but a nice option, you will need:

4x M3 Short heat inserts from CNC Kitchen

4 x M3x4mm TX10 bolts from CNC Kitchen (4 x M3x4mm Hex machine bolts should work, provided the heads are not deeper than 4mm total)

Heat insert tip to suit.

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Sliced and printed as pictured in the 0.20 Strength preset using eSun Black ASA with some minor changes:

Seam position - Back

4 Walls

4 Top & Bottom Shells

Top, Bottom and Solid Infill pattern - Rectilinear.

35% Adaptive Cubic infill

Enable Supports - Tree (auto)

Supports on build plate only

Support critical regions only

1 Top Interface Layer

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3mf file is set to my own filaments, using Polymaker Army Green ASA for support/raft base and Polymaker Orange ASA for the interface layer. Works fine as shown. Adjust accordingly to your setup.