🖱️ ReMouse M8.2 – Repairable OEM USB Optical Mouse

ReMouse M8.2 is a 3D-printable replacement shell designed to repair OEM USB optical mice instead of throwing them away.

In schools and shared environments, mouse buttons often fail while the internal electronics are still fully functional.
This project allows you to reuse the original PCB, USB cable, scroll wheel, and screws, replacing only the broken plastic shell.

The design is intentionally simple, robust, and efficient, focused on repairability, durability, and future adaptability.

Why ReMouse?

Most OEM mice are discarded due to simple mechanical failures, usually broken click buttons, while the internal PCB still works perfectly.

ReMouse M8.2 aims to:

• extend the lifespan of everyday electronic devices,
• reduce electronic waste,
• promote a repair-first mindset instead of replacement.

This project fits naturally into eco-responsible practices, educational workshops, repair cafés, fablabs, and schools.

Beyond repair, ReMouse also gives a second life with a bit of personality.

• The shell color can be freely chosen, allowing you to add some visual “pep” to an otherwise generic OEM mouse.
• Ideal for color coding, classroom identification, or simply making repaired devices look fresh again.

The overall shape remains minimal and ergonomic, focusing on comfort and efficiency rather than unnecessary complexity.

STEP File Included (Design Modifications Allowed)

The STEP file is included to allow:

• design customization and modification,
• adaptation to other OEM mouse variants,
• educational or technical use (analysis, improvement, demonstrations).

 The STEP file is provided to encourage learning, experimentation, and improvement, especially for teachers, makers, and fablabs.

⚠️ If you publish a remix, please make sure to strictly respect the license associated with this model, including:

• derivative works must be published exclusively on MakerWorld,
• no commercial use,
• no independent redistribution of the model or its derivatives.

(see license settings above)

Tested OEM PCB Compatibility

This design has been tested with two OEM USB optical mouse M8.2 PCBs commonly found in low-cost wired mice:

• PCB marked ATA2398, with silkscreen date 2012.10.24
• PCB with a similar layout and dimensions, silkscreen date 2014.11.25, mechanically and functionally compatible

Both boards share the same overall layout and dimensions, and were successfully fitted and tested inside the ReMouse M8.2 shell.

⚠️ OEM manufacturers may reuse the same reference over several years with small internal variations.
For this reason, minor adjustments may be required for other M8.2-based boards — which is exactly why the STEP file is included.

Assembly

Step 1 : Insert the cable strain relief into its slot at the rear of the mouse base.
Step 2 : Insert the transparent optical window (sensor lens / light guide) into the dedicated opening in the base.
Step 3 : Slide the Clamp part in the direction indicated by the arrow. ⚠️ Be careful not to pinch the USB cable wires during this step.
Step 4 : Install the PCB into the mouse base. ⚠️ Make sure the wires are routed along the side, and not underneath the PCB.
Step 5 : Place the top shell from above (as shown in the picture), then slide it in the direction of the arrow until it is fully seated.
Step 6 : Finally, secure everything using the original mouse screw.
Step 7 : That’s it! All that’s left to do is click, re-click, and enjoy the joy of a successfully repaired mouse