Chamber Fan Duct for P1P/P1S (no support)

The original Chamber Temperature Regulator Fan is controlled via GCode - but the fan duct is not present on the P1P (neither is the opening on the back). This duct allows you to use the stock official X1 Fan from the Bambu Lab Store in your P1P or P1S (if you bought the upgrade kit, which lacks the duct).

It is compatible with the original charcoal filter aswell

Printing

Print the part from a temperature resistant material, PETG is sufficient - lay the pieces flat on the printbed and print them upright, you won't need supports for that

(yes, that very long floating bridge in the top is totally possible, just ramp up the aux fan to the max for such bridges, there will be only a few lose strands of filament that you can snip off after printing - if you have troubles to dial in your settings, just to some testing beforehand with this great file by @yahbluez)

if it fails, no worries, just snip off that part completely, it is not functionally needed - no need for reprinting

Assembly

the 2 Brackets just slide in, they are supposed to have a bit of tolerance - a dab of glue (i like to use UHU Hart) should to the trick.

Installation

The fan is mounted with 4 countersunk M3x6 screws, the duct itself is mounted with 3 (or 4, if you can reach it) self tapping 2 mm screws (oddly the only thing i've encountered non 3 mm screws on the P1P)

Since the space is a bit tight, lower the printbed to the bottom, so the z-axis carrier is out of the way

then mount the bottom right screw of the fan but dont tighen yet - move the duct into position and and then turn the fan into place until it “snaps” on the screw mount pins

insert the 4 remaining screws and then move the duct to the final position and mount them to the frame of the P1P

holes in the back? you got options!

this step is only required if you use the P1P backpanel without holes, the P1S Backpanel got you covered ;)

you need to drill some holes in you rear cover - you can use this guide by ktothestank to drill your holes

an alternative solution is to use this model to just print a new rear panel designed by dgyenes 

if you more fancy the original style with a grid of holes, you can take a look on the printable panel by Lars Becker 

Controlling the fan:

the fan is controlled by gcode in the default profiles of the P1P, you don't have to do anything. if you want to control the fan in Bambu Studio, you need to change the config however - under Windows, navigate to %SystemDrive%\Program Files\Bambu Studio\resources\config.json and set "FUNC_CHAMBER_FAN" : true - you can now control the fan just like the other Fans on the printer (like the X1 or X1C does)

you also can just use the P1S profile, if you enclosed your printer - they are functionally the same (with minor differences)

Compatibility

The duct will work with every standard 92 mm fan - but if you want to install a fan with more than 25 mm height, you need to use the alternative model for 38 mm fans

if you buy the original fan from bambu lab, sometimes the put on very thick foam padding, if you don't want to remove that, print the 38 mm version

you need to use a 24 V PWM fan to work - replacing it with a regular PC fan (Noctua etc.) you will need a step down or buck converter to get the needed 12 V - there is plenty of space to mount it below the duct, don't mount it on the side, it might collide with the z-axis 

Changelog

2023-10-22 v11:

• added a new version without supports
• the legacy versions of the model were printed in different orientation - thx for @zwirek2201_448570 for the idea