Webcam holder for Ender 3 X-axis cover

Webcam holder for Ender 3, which is fixed to the X-axis stepper motor cover.

In the plastic cover there is a small cutout on the bottom, where you mount this holder using the included clip.

You will need one M3x12 (or longer) screw and nut.
The nut is fit pressed into the clip.

I primarily designed this for my Logitech C920 which is quite wide, so there should be enough space for most cameras.

There is an M6 hole for standard camera tripod mount screw. But if you have lighter or smaller webcam, you can easily just stick it on top of the holder with double sided tape.

With the Logitech there is enough space for the whole hot-end carriage, with MHG5 and BLTouch on it's side. The camera is just slightly above the level of the nozzle, so you can even watch your first layer go down.

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I printed it in PETG, but if your cam is not heavy, PLA should be just fine.

No supports are needed, but I would suggest printing the holder with a brim, since there is small contact area.

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Webcam settings tip

For those of you who use the same (or similar) webcam, I have a trick for you to get the best image. Since the camera has an auto focus it repeatedly got in and out of focus as the carriage moved. If you use Octoprint, this can be easily fixed with few simple commands (I added them to a bash script which auto starts after reboot).

v4l2-ctl -d /dev/video0 --set-ctrl=focus_auto=0
v4l2-ctl -d /dev/video0 --set-ctrl=focus_absolute=30
v4l2-ctl -d /dev/video0 --set-ctrl=power_line_frequency=1
v4l2-ctl -d /dev/video0 --set-ctrl=sharpness=200
v4l2-ctl -d /dev/video0 --set-ctrl=exposure_auto=3

You can tinker with the actual "focus_absolute" value to get the best focus for you.
Also the "power_line_frequency" depends on where you live, (1=50Hz, 2=60Hz).
If it says that the device was not found, you can try different video device number, for me it is "/dev/video0" - use this command to get a list of yours:

v4l2-ctl --list-devices

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