A sleek, compact enclosure designed to turn your RAK WisBlock into a portable, phone-mountable mesh radio. Perfect for off-grid communication, hiking, emergencies, or just experimenting with LoRa mesh networks.
🛠 How to assemble the parts:
🎬 Watch my thinking and design process:
🛒 Don't want to print? Buy ready-made:
🔧 Required Hardware
RAK WisBlock Mini Meshtastic Starter Kit (US915)
Must be the Mini Starter Kit with RAK19003 Base
LiPo Battery (3.7V 2000mAh 103450)
Lithium Polymer with JST PH 2.0mm connector
M3x8mm Screws (6 required)
MagSafe Magnets (ONLY for MagSafe version)
Flutesan Magnet Sticker Circle
You will need 2 magnets stacked together for strong hold
⚠ CRITICAL: Battery Polarity Warning
If you buy the battery linked above (or any third-party battery), you MUST flip the polarity on the JST connector before connecting it to the RAK board.
The red and black wires need to be swapped on the plastic JST connector to match the RAK board's pinout. Connecting with wrong polarity can damage your board!
Note: Batteries sold specifically for Meshtastic/MeshCore devices from official sources typically have correct polarity and can be connected directly.
📁 Included Files
To build this enclosure, you need to print one base and one cover. The battery holder is included with the base print files.
Model Files (STL)
Use these if you want to slice the models yourself with your own settings.
File | Description |
|---|---|
| Top cover for the enclosure. Print standing upright with the large circular opening on the build plate for best surface quality. |
| Base with MagSafe magnet pocket. Add a print pause to insert magnets. Use supports on build plate only. |
| Base without MagSafe—just print flat on the build plate, no special steps needed. |
| Internal battery retention bracket. Rotate 90° so the long axis is perpendicular to the print bed—this ensures layer lines run the correct direction for strength. |
Print Files (Pre-configured for Prusa CORE One)
Each print file is available in two formats:
.3mf — Project file you can open in PrusaSlicer to review or modify settings for your printer
.bgcode — Ready to print directly on a Prusa CORE One (or compatible printer) with no changes needed
File | Description |
|---|---|
| MagSafe base + battery holder in PETG. Print pauses automatically for magnet insertion. Filament: Elegoo Rapid PETG. |
| MagSafe base + battery holder in PLA. Print pauses automatically for magnet insertion. Filament: Elegoo Matte PLA. |
| Standard base + battery holder in PETG. No magnets required—just print. Filament: Elegoo Rapid PETG. |
| Standard base + battery holder in PLA. No magnets required—just print. Filament: Elegoo Matte PLA. |
| Solid color cover in PETG. Filament: Elegoo Rapid PETG. |
| Solid color cover in PLA. Filament: Elegoo Matte PLA. |
| Transparent cover in PETG. Filament: Elegoo Transparent PETG. Prints slowly but gives a near-transparent finish. Important: Make sure your transparent PETG is well-dried before printing or you won't achieve good clarity. |
🖨 Print Settings
Tested on: Prusa CORE One with 0.4mm nozzle
Setting | Value |
|---|---|
Nozzle | 0.4mm |
Material | PETG or PLA (Cover recommended in PETG; Base can be PLA or PETG) |
🧲 MagSafe Magnet Installation
When using the MagSafe base print files, the print will automatically pause at the right layer for magnet insertion. If slicing the STL yourself, add a manual pause at the layer just before the magnet pocket closes.
When the print pauses, insert 2 magnets stacked together into the pocket
Important: The side that sticks to your iPhone must face DOWN on the print bed. Test orientation with your phone before placing!
Resume the print to seal the magnets inside
🔩 Assembly
Flash your RAK WisBlock with Meshtastic or MeshCore firmware
Connect the battery (after fixing polarity if needed!)
Place battery in the base with the battery holder with 2× M3x8 screws
Seat the RAK board in the enclosure
Screw in the RAK board with the included screws
Attach the antennas and route the cables as shown in the images
Attach the cover using 4× M3x8mm screws
Slap it on the back of your phone and enjoy off-grid comms!
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Designed by OffGrid Devices
The author marked this model as their own original creation.