Ender 3 and Ender 3 V2 front case for BTT Manta E3 EZ. Ender 3 V2 front case for stock board/SKR Mini E3, and for Orange Pi Zero 2

UPDATE (2026. 08. 16): I’ve uploaded a new version of the box designed for a 40×40 mm fan. This is the only change compared to the original version.

E3V2-MantaE3EZ-BOX-poly-40x40.stl

Important information about the E3V2 - Manta E3 EZ - BOX-TEST model:

This is a TEST model, which may be a solution to the problem of the SPI flat cable connector on the side of the Manta E3EZ board. I tried to make room inside the case for the flat cable so that the board in the case moved a few millimeters away. Thus, the side connectors (USB, LAN, HDMI, SD slot) were moved deeper. I couldn't test it, because I don't need the side SPI terminal.

UPDATE for Manta E3 EZ box (2023 October 07):
I made a new version for Ender 3 V2, where I changed the ventilation grills to polygons at the front of the case, as well as in the place of the fan, and also added a polygon grill under the Manta E3EZ MCU. A polygonal grill was also placed on the lid above the stepper motor drivers. The box has become a little longer and the bottom has been lowered a little, so that the SD-Card slot on the side is easier to access and any foot can be usable for the printer. Because this case has become a little longer the previous lid cannot be used!
Model files: E3V2-MantaE3EZ-BOX-poly.STL and E3V2-MantaE3EZ-LID-poly.STL

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This is my own remix from https://www.thingiverse.com/thing:4069239. I use an SKR Mini E3 V3 and an Orange Pi Zero2 for OctoPrint.

I modified the original box so that I could use 5015 fans instead of 4010/4020 fans. I put some walls inside for better cable management. But there are those who may have problems if the wires are too short.

I'm not a 3D designer and I don't know much about it, but I had to modify it to meet my needs.

I uploaded it in case it might be useful to someone else.

I made modified lid for both, on which the "grill" is placed to the front and a cross direction. This can be used with if inward blowing fan.
I also made a simple air filter housing in two sizes for supply fans for both boxes. 10 and 20 millimeter sponge filters can be used in these air filter housings.

Case for BTT Manta E3 EZ
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Since BTT only made a case with necessary modifications for this board, and other cases are almost are less available for the time being, I made the BTT Manta E3 EZ version of the SKR box. The "SKR-airfilter" also usable for this case.

This case is a little longer and stretches forward more so that the Manta E3 EZ board connectors (USB, LAN, HDMI) are accessible on the side. The bottom of the box has been lowered, so that the Pi (CB1, CM4) SD card slot is accessible from the outside under the fixing tab.

The printer needs to be raised higher due to the lowered box and air filter. I made a remix from FONSWERKS Ender 3 V2 Riser Feet 35mm (https://www.thingiverse.com/thing:4665097), but modified one of the legs with a spacer, because the left front leg had to be pushed back because of the SD-Card reader. It's only a small modification, but it prevents the leg from accidentally getting into the wrong position.

I also made a "tunnel" on the case side wall where the BTT TFT35 SPI flat cable can be routed out of the case on the left side at the top of the case. This solution can be used very well for example to ‘banditoz’ made tft35 SPI screen case (https://www.thingiverse.com/thing:5832319). Unfortunately, on the Manta E3EZ, the connector of this cable - I don't know, why - is not oriented up, but on the side, which makes it difficult to route the cable in the case. To solve this problem, I made a small recess in the side wall of the case opposite the connector so that the cable can fit. I don't know if it went well as I didn't print this modified version.

"Simple" Ender 3 version: E3-MantaE3EZ-box.stl and E3-MantaE3EZ-box-lid.stl

STEP files are included for all cases, except for the "simple" Ender 3.