Prusa Core One Esp32 cam

I wanted to add a simple & cheap camera to my new Prusa Core One and mounted it with a screw rather then using magnets. There are few designs with magnets, but I wanted to have more fixed solution.

Steps:

1. For the actual camera setup I used the design on the github:
GitHub - prusa3d/Prusa-Firmware-ESP32-Cam: Firmware for ESP32 Cam modules to be used in Prusa Connect

Material: Esp32 CAM

Adjust resolution to max and enable flash, when taking picture only.
 

2. I used the Esp32 slim case with the GoPro joint for the camera:
ESP32 camera case by Michal Fanta | Download free STL model | Printables.com
by using PETG. The camera gets hot, it is not unusual to see 56 degrees Celsius, so don't use PLA.

3. My contribution to this model was to create the fixture to the Prusa Core One chamber.

Materials:

• M3 x 8mm screw 
• M3 nut
• 1m micro-USB to USB-c cable
• 3 x 2.5mm plastic strips to hold the USB and the LED cable.

Process:

• print out the 3d parts in PETG
• drill a 3mm hole at the top left junction (3.2mm drill). See picture below. 
• insert the nut into the back of the camera fixture and the M3 into the screw cover.
• insert the join between the the camera case and the fixture. You might need to adjust the size to fit it. Mine is a bit lose, but the cable is holding it anyway. You can also use M6 screw.
• mount the micro-usb cable
• mount the assembly into the printer
• Prusa grease 

I have not seen any official “howto” mount a camera into the printer, by doing some experiments I found that removal of the top plastic plate is highly recommended and also remove the second top metal plate from the back by unscrewing the two screws in the cabinet behind the rear Z axis.

Clip the plastic strips in the chamber holding the cable to the LED light (one by one) and replace them by mounting the USB cable. It is safer to clip them at the top of the metal profile.

Add grease to left axis because you might have, well I did, touch it.

Recalibrate the print plate Z axis when done.