MeshTac – Tactical Case for Heltec V3 V4 t114

🌲 Backstory: Built for the Off-Grid Explorer

When you're off the grid, your gear becomes your lifeline.

Out there, it's just you, the trail, and whatever tools you've prepared. There’s no cell service, no easy backup, and no room for fragile tech. Whether you’re deep in a forest coordinating with a hiking group, on a remote build site setting up a mesh network, or just experimenting with Meshtastic in the wild, your node needs to be as tough—and smart—as you are.

Too many cases looked either like flimsy dev shells or plastic toys. I wanted something that looked like it belonged in the field—with real-world ruggedness, tactical aesthetics, and the flexibility to adapt to my setup. It had to feel dependable, handle rough handling, and still look sharp mounted on a backpack strap or tossed in a go-bag.

That’s why MeshTac was born — a tactical, rugged 3D-printed case made specifically for the Heltec V3/V4 and T114 Meshtastic node.

✅ Features

• Rugged tactical aesthetic with high structural durability
• Supports 1000–3000mAh batteries + 18650
• Customizable name plate for call signs, labels, or team IDs (Remix allow)
• Integrated tactile button
• Interior mounting plate for the Heltec V3/V4 board
• Modular battery slot area – choose your battery size and trim accordingly
• Optional GPS module slot for long-range positioning support

🔩 Hardware Parts Needed

• Socket Hex Head Black Oxidized Screws:
  • 2x M3 x 4mm
  • 1x M3 x 8mm
  • 3x M3 x 12mm
• Heltec V3/V4 or T114 Board
• Battery (optional but recommended)
• GPS module (optional)
  • https://muzi.works/products/gps-module-atgm336h 
  • https://www.amazon.com/dp/B09LQDG1HY 
  • https://meshtastic.org/docs/hardware/devices/heltec-automation/lora32/peripherals/

🔋 Battery Compatibility

The case is engineered to fit the following battery sizes with modular trim lines:

• 1000mAh (44x26x11mm)
• 1100mAh (46x32x9 mm)
• 2000mAh (52x35x11 mm)
• 3000mAh (67x35x10 mm)
  (Cut away internal battery bay walls to accommodate the battery you install.)
• 18650 Supported MAX case

🧰 Assembly Notes (see images)

1. Press the name plate into the front cover - personalize it or remix your own design!
   1. optional: use a soldering iron to lock it in place.
2. Install the SMA connector into the back cover and connector to Heltec board
3. Mount the Heltec V3 board into the front cover
4. Lock in with the board mount and install the middle right M3x4mm or 6mm screw
   1. WARNING: make sure the middle right screw does not protrude the board mount or it may damage the battery casing.
5. Insert your preferred battery and connect to board
6. Assemble the front and back covers with the hex screws.
7. Power on and get meshing.

📄 Change Log

v1.3.0 – [2026-01-17]

• Updated license to allow REMIX but share ONLY on MakerWorld! NOT FOR COMMERCIAL USE.
• Added Heltec V4 compatibility to:
  • MeshTac Rugged Case
  • MeshTac Rugged Case Deep version
  • MeshTac MAX
• MeshTac MAX
  • Added SMA antenna compatibility
  • Continues to support external GPS via dedicated mount
• Heltec v3/v4 uses the same parts
• GPS
  • GPS nameplate confirmed compatible with Heltec V4 GPS
• Battery & Fitment Notes (Heltec V4)
  • Recommended versions: MeshTac Deep or MAX
    • Compatible with all supported batteries
    • MAX support 2x 18650s
  • MeshTac Rugged (standard depth) + Heltec V4
    • Limited to 1000 mAh battery only
    • Restriction due to GPS connector clearance
• Added installation guide pictures

v1.2.0 – [2025-11-12]

• Initial release of MeshTac Rugged case for Heltec T114
• Compatible with Deep case, SMA only right now
• Working on internal antenna case
• Added installation instruction image

v1.1.0 – [2025-08-16]

• Added Compatibility Matrix image with dimensions and supported batteries and antennas
• MeshTac Rugged case updated with extra antenna clearance (max diameter 14 mm)
• MeshTac Rugged case added Deep back option allowing space for additional components
  • Battery retained using double-sided tape

v1.0.0 – [2025-05-15]

• Initial release of MeshTac Rugged Case for Heltec V3
• Includes STL files for:
  • Front cover
  • Back cover
  • Board mount
  • Multiple name plates

v1.0.0 – [2025-08-16]

• Initial release of MeshTac Mini
• Smaller form factor design:
  • Eliminates board mount
  • Uses retention clips for the board
• Hardware:
  • 3× M3 × 12 mm
  • 1× M3 × 4 mm

v1.0.0 – [2025-08-16]

• Initial release of MeshTac MAX
• Designed for N-Type antenna, specifically:
  • ALFA Network AOA-915-5ACM (5 dBi)
• Includes additional internal board for mounting extra components (e.g., GPS)
• Hardware:
  • 4× M3 × 12 mm
  • 2× M3 × 8 mm

v1.0.0 – [2025-08-16]

• SMA wrench model added to install the nut easier.

Meshtastic® is a registered trademark of Meshtastic LLC. Meshtastic software components are released under various licenses, see GitHub for details. No warranty is provided - use at your own risk.