Prusa i3mk3/s octoprint rpi + camera mount

I couldn't find a raspberry pi holder / octoprint server that i liked, so i designed my own.

[Project video here](https://www.youtube.com/watch?v=80kXBwF7VbI) (It really helps my channel if you engage with the video, im also more responsive to comments / questions you youtube than I am on thingiverse):

additional materials needed (you probably have some of these already):

* webcam with 1/4" mount. (I used a Logitech C920): [link](https://www.amazon.com/gp/product/B006JH8T3S)

* 3A boost/buck converter to power the pi off of the prusa power supply: [link](https://www.amazon.com/gp/product/B078XQ5MWR) **MAKE SURE TO ADJUST THE VOLTAGE BEFORE CONNECTING YOUR PI!!!**

* loc-line / flexible camera stuff (I bought mine a while back and is no longer listed. You might be able to find it cheaper. I initially went with just one of these, but bought a second and used 1/2 of the second one to add additional length. I currently am using 25 sections of tubing): [link](https://www.amazon.com/Adjustable-Gooseneck-19-Section-Fusion-Session/dp/B09BZ89XKL/)

* M3 bolts of various sizes, I have this kit: [link](https://www.amazon.com/gp/product/B071KBVZVV)

* small right angle USB cable for connecting the pi to the prusa control board: [link](https://www.amazon.com/gp/product/B00B5HS7TI)

* rpi heatsink. Probably unneeded, but looks cool. I also used the bolts from this in the design, so you might have to drill out a hole or widen the nut insert if you want to use bolts from the above kit): [link](https://www.amazon.com/gp/product/B07VWM4J4L)

* spade connectors to attach the boost/buck board to the prusa PSU: [link](https://www.amazon.com/gp/product/B01B1753K2)

* headers for making power wire to go from the boost/buck board to the pi: [link](https://www.amazon.com/gp/product/B074HVBTZ4)

* wire: needed, not gonna link.

* magnets (only needed if you also print the door brace) [link](https://www.amazon.com/gp/product/B07842PSJD)

_____________________________________________
STEP files are included, but contain some parts that should be hidden, couldn't figure out how to export a single body in fusion 360.
_____________________________________________

useful octoprint settings and such:

**Octoprint disconnects from wifi and doesn't reconnect**:
```
# edit /etc/wpa_supplicant/wpa_supplicant.conf and add the following before the network={} block:

ap_scan=1
autoscan=periodic:10
disable_scan_offload=1
```

**Get camera working in octoprint**
```
# edit /boot/octopi.txt

set camera="usb"
set camera_usb_options="-r 1920x1080 -f 15"

```

**Disable camera auto focus / white balance / brightness stuff (needed for clean looking timelapses - go to http(s)://<your-octoprint-server>/webcam/?action=stream to get a full screen webcam view while changing settings**
```
### install needed utility
sudo apt install v4l-utils

### list settings / current values
v4l2-ctl --list-ctrls-menus

### values that work well for me:

# exposure ( note, exposure_auto=1 is manual, 3 is auto. this is confusing!)
v4l2-ctl -c exposure_auto=1
v4l2-ctl -c exposure_auto_priority=0
v4l2-ctl -c exposure_absolute=600
v4l2-ctl -c gain=255

# focus - will take some messing with
v4l2-ctl -c focus_auto=0
v4l2-ctl -c zoom_absolute=0
v4l2-ctl -c focus_absolute=65

# didn't notice a difference with this setting personally
v4l2-ctl -c backlight_compensation=0

# color / image settings (don't worry if your camera goes green when you set auto=0, 3000 is a good start, higher is warmer, lower is cooler)
v4l2-ctl -c white_balance_temperature_auto=0
v4l2-ctl -c white_balance_temperature=3050
v4l2-ctl -c sharpness=140
v4l2-ctl -c brightness=120
v4l2-ctl -c contrast=120
v4l2-ctl -c saturation=110
```