This is my first 3D model, and I am not a professional designer, so the design may still feel rough in some areas.
After purchasing the Snapmaker U1, I wanted to add a top cover, but I could not find one that matched what I had in mind.
So I decided to design and build my own.

⸻

Design Goals
1. Flat and sturdy top surface
I wanted a flat, angular design so that a filament dryer could be placed directly on top of the printer.

2. Additional storage
I felt the unused space at the upper front area could be better utilized, so I added a small drawer for storage.

3. Maximum reuse of existing dimensions and parts
To minimize rear protrusion, the back cover extension was limited to approximately 1 cm.
The existing top screw holes and rubber plugs are used to fix the cover securely and reduce vibration.

4. Balance between printability and insulation
My original goal was a fully 3D-printed enclosure, but the advantages of acrylic were difficult to ignore.
Therefore, I used 5 mm clear acrylic panels.
The panel drawings are included, so you can cut them yourself.
Except for the front panel, most parts can be replaced with printed panels, which may also improve thermal insulation.

⸻

If you want to print this model on your U1, please use the “Download STL/CAD files” option 

This model is designed to match the build volume of the Snapmaker U1.
It can be printed on larger machines such as the H2X (270 mm build size) without modification.
For printers with a smaller build volume, the model will need to be split before printing.
If there is interest, I can upload alternative versions adjusted for different printer sizes.

The enclosure uses five 5 mm thick acrylic panels: a 360 × 250 mm upper rear panel (1), 250 × 270 mm side panels (2), a 360 × 270 mm rear panel (1), a 360 × 210 mm front panel (1), and a 360 × 215 mm upper front panel (1).

⸻

Future Improvements (Planned)
I am considering future versions with:
 

I already have a rough design idea, but the data cable is currently too short.
If anyone knows a compatible extension or alternative solution, I would really appreciate your advice.

⸻

[Assembly Guide & Files] I have included two original STEP files for your reference: an Assembled version and an Exploded version. You can easily figure out the assembly process by checking the exploded view.

💡 Assembly Tips:

• Frame & Panels: I strongly recommend using glue (super glue) to secure the joints between the frame and the panels/pads.
• Top Cover: Do NOT glue the top cover. It is designed to be left unglued so you can open and close it freely.
• Front Window: The design originally intended for a clear acrylic sheet to be used for the front window. However, you can easily substitute it with a 3D-printed part if you prefer.

⸻

Thank you for checking out my first project.
Any feedback or suggestions are very welcome.