Pi Box 4 Ender 3

thingiverse

This print is of a box that mounts directly in the right-rear of the Creality Ender 3 printer between the power supply and the Y-axis rail. The box was specifically designed to house a Raspberry Pi along with a small enclosure for a DC-DC step-down board, but it could easily be repurposed as a general-purpose tray. The design will also fit any printer utilizing V-Slot aluminum rails in 40mm, 60mm or 80mm sizes. All you need to ensure is that one corner has sufficient space for it. The box's outside dimensions, not including the rail interfaces, measure 40mm high x 100mm wide (x-direction) x 120mm deep (y-direction). This design may be more robust than necessary for its intended purpose, but I tend to favor building things with durability in mind, so I kept it sturdy. The included CableClip1.stl is a design by Ganjar Nugraha, gn-jr, called "Creality Ender-3 Display Ribbon Cable Clip," found at https://www.thingiverse.com/thing:2880021. I simply rotated it to enhance stress management. For the step-down board, I utilized an LM2596 DC-DC converter to supply 5 volts to the Raspberry Pi. The design includes a switch and an LED to indicate when the Pi is powered on. I tapped into the printer's power supply at 24 volts and employed Anderson Power Poles for quick connections. To bring the 5 volts to the Raspberry Pi, I created a cable using a solderable micro-usb connector. The three photos showcase the box installed with the clip detailed, an empty box, and in-service with a Raspberry Pi running OctoPrint to enable remote control of the printer. Edit: I included a Remix of the same box without windows or dividers for the Raspberry Pi. This allows it to be used as a general storage box for the back.