A mod for the Ender 3 S1. Mount your raspberry pi 3, 4, or 5 on the side of your 3D printer. Print upside down for best quality. Use the already existing bolts on the left or right side of your Ender 3 S1. Remove the lock washers. Screws for holding the Pi to the mount are also necessary. Some finishing touches such as sanding and rounding out of the hole are needed. This mount is fixed on to the side of the printer (see pictures). Compatible with Ender 3 S1 or any printer with 2 horizontal screws 20 mm apart.