Altimeter for flight simulator

This is a replica of an altimeter. It is inspired by the airspeed indicator you can find in fighter jets but is not an exact replica. It is designed to be used with :
- a NEMA 17 stepper motor (like this one : https://amzn.eu/d/48ZMKHg)
- a digital sensor (like these : https://amzn.eu/d/fukfElb)
- a digital screen (like this one : https://wiki.seeedstudio.com/Grove-OLED_Display_0.96inch/)

The PDF is the background to be printed and glued to the front plane.

I will use it connected to a stepper driver shield for an Arduino Uno. I plan on using it for DCS World through the use of DCS Bios.

To assemble the different parts you will need 5 M3 screws for the stepper motor (M3x5mm) and the digital sensor, 4 M3 screws (M3x20 mm) and four nuts (M3) to attach the front plane to the motor support and 2 M2 screws for the display.

Update :
The screw hole to attach the proximity sensor now runs through the back plate and has a recess to secure the sensor with a nut (Hu, M3). Use a M