Ok, the first step is making the front of the camera file is already set to the right canvas, and you're ready to go. Remember to wear your laser-safe glasses.

This is an important step. You need to switch the canvases and laser the camera body again to make the back side of the camera. Don't forget your laser-safe glasses.

Almost done! The last step is to glue the camera lens I used Bearly Art Precision Craft Glue.