I have made it so the BTT Smart Filament Sensor can be mounted on top of the roll, to remove all drag from carriage.

Fits the roller from original spoolmount.

I have made 2 grooves to add 2 strips of filament for reinforcement, if you need to cut it to fit your bed.

Fits on either side, needs a t-nut for mounting. Also has space for m4 nut, if mounting a filament sensor.

Spoolholder for Biqu BX

Spoolholderv2.stp

This fits a cheapo Amazon camera, but can be altered to anything i guess

BX-Cameramount.stl

Fits on the left side of X-axis replacing the black cover, and allows to mount the arm for camera.
Prints without supports lying on the diagonal face (Left side when mounted)

BX-Cameramount-base.stl

Fits on the left side of X-axis replacing the black cover, and allows to mount the arm for camera

Custom fan-mount to replace 40x40 extruder-fan with 5015 blower.

blower-fan-cover.stl

**New iteration** with hex-adjusters on top to control angle, and slight changes to belt mounts.
Custom carriage to be used with mount for replacing original x-carriage.
Made a small indent to put a washer for strengthening the cam-nut on the bottom wheel.


Carriage

Custom carriage to be used with mount for replacing original x-carriage.

Carriage.stl

**New iteration** to match new carriage
Custom mount for replacing original x-carriage.
It requires the carriage to be printed as well.
This model moves se breakoutboard over behind the extruder and therefore the original part cooling fan cannot be used.
There is a hole in the front where the motor-plug can be fed through, by rotating the motor on the extruder.

Mount

Custom mount for replacing original x-carriage.

Mount.stl

Luke (looxonline) 
https://www.thingiverse.com/thing:4864920
remixed the original from 
Phil (fhogphil)
https://www.thingiverse.com/thing:4789656

I just needed it to be 2mm further to the right to fit my H2. Perhaps my heatblock is rotated 180°.
Anyways, here it is, offset to the right by 2mm.

H2_Duct_BX_Version.stl

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