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BigTreeTech Manta M5P Upgrade Case for Ender 3 Pro

Upgrade your Ender 3 Pro with this custom-designed enclosure built specifically for the BigTreeTech Manta M5P mainboard (perfect for running Klipper with a CB1/CM4 module!). This design replaces the cramped stock electronics box, giving you a spacious, functional, and easily accessible home for your upgraded mainboard.

Whether you are converting your Ender 3 Pro to Klipper or just looking for a cleaner electronics setup, this case is engineered to make installation and maintenance a breeze.

Key Design Features

• Sliding Lid Design: No more fumbling with tiny screws just to check your wiring. The secure sliding lid grants effortless, tool-free access to your Manta M5P board whenever you need to adjust stepper drivers, plug in USB cables, or check status LEDs.

• Integrated 40mm Fan Mount: Keep your stepper drivers and CB1/CM4 computing module ice-cold. The dedicated 40mm fan mount provides targeted cooling right over the high-heat areas of the board.

• Extra Clearance Standoffs: Designed with integrated riser standoffs to slightly lift the enclosure. This provides crucial extra clearance underneath the printer frame, allowing for improved under-bed airflow and cleaner external cable routing.

• Perfect Port Alignment: All essential ports, including USB, Ethernet, and MicroSD card slots, are fully accessible without compromising the protection of the internal electronics.

Print Settings & Recommendations

To ensure maximum durability and a perfect fit for the sliding lid mechanism, use the following print guidelines:

• Material: PETG or ABS/ASA is highly recommended due to the ambient heat generated by the stepper drivers and heated bed. High-temp PLA Plus can work if your printer is well-ventilated.

• Infill: 20% to 25% (Gyroid or Grid for structural rigidity).

• Wall Loops / Perimeters: 3 walls for solid screw-holding strength.

• Supports: Minimal. The main body prints flat. The sliding lid slots may require touching-buildplate supports depending on how well your printer handles bridging.

Hardware Required

• Fan: 1x 40mm cooling fan (4010 or 4020, 12V/24V depending on your setup).

• Board Mounting: M3 button-head screws to secure the Manta M5P to the internal printed standoffs.

• Frame Mounting: Standard M3/M4 T-nuts and screws to clamp the case/standoffs to the Ender 3 Pro's 2020/2040 aluminum extrusions.