Weatherproof Case Heltec T114 / T096 / Tracker V2

IMPORTANT!

The print profiles using Support for PLA/PETG filament are optimized for it and will NOT print well without it. I included a profile with standard supports. Or just reset all print settings back to default.

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Continued evolution of my modularized case for the popular Heltec T114 / T096 / Tracker V2 nodes.

This second version brings weather-proofing, provides bodies and lids for both Heltec T096 and T114 node variants, with a universal base and belt clip. The modular aspect allows for different configurations as well as future expansions with minimal re-print.

The weatherproofing is accomplished by the included TPU gaskets between the different layers. As the video shows, I left a node in the rain for a few hours, took it apart afterwards and confirmed it was dry inside. Full water submersion is not advised, but should be plenty fine for a rainy hike.

I am still working on a Solar Panel attachment that will connect over the back wall, similar to the belt clip, so in the meantime I have included the Solar Panel base models from the previous version.

Components

The assembly is a stack of layers secured with M3 bolts, no adhesive and no snap-fit joints. The TPU gaskets seal the display and battery compartment. I also included a TPU plug for the USB-C port and for the hole on the future-proofed base; however, the matching belt clip already plugs that hole sufficiently.

Part Info & Spec Qty Source

Board Compatible with T114(with GPS), T096, and Wireless Tracker V2 — select a node based on your individual needs 1 T114 · T096

Battery 1S LiPo, 3000 mAh, the one linked fits great 1 Amazon

Antenna SMA, 915 MHz — match antenna frequency to your region, the one linked is well tuned 1 DigiKey

Bolts M3 socket head. 20mm standard; belt-clip build swaps the 2 rear bolts for 25mm; solar-base build uses 25mm for all 6 6 Amazon

PETG filament Shells and clip — Amazon

TPU 95A filament Gaskets and port cover. Tip: Light, translucent filament keeps the module LEDs visible — Amazon

Solar panel (optional, solar base build) 60 mA, 5 V 1 Amazon

- Belt clip. Attaches to the base simply by swapping in M3, 25mm bolts (5mm longer than standard). No additional hardware or reprinting is required. - Solar base. The legacy solar base from V1 is included unchanged, with a new TPU gasket added for weatherproofing. I plan on creating a swiveling solar panel attachment in the future, but if you need solar today — this option is available. You will need six M3, 25mm bolts. What to print and how?

Five plates are included. Pick the parts required for your build. Feel free to rearrange the plates and optimize for your printing and AMS setup. I recommend PETG for the strength and heat resistance. PLA will work but will quickly warp when left in hot sun or a hot car. Support is manually configured where needed, mostly for the module body and the bolt head slots. I recommend Support for PLA/PETG filament for clean removal.

Plate Purpose

01 — T096 or Tracker V2 Your node is T096 or Tracker V2

02 — T114 Your node is T114

03 — Universal parts All builds. Shared shell and gasket parts.

04 — Future-proofed base Universal, with a pluggable hole in the base for future expansions.

05 — Legacy solar base Legacy Solar node base, gasket and panel holder

Assembly

T096 / Tracker V2

Print a set of the T096-specific and Universal parts of your choice and color, including the TPU gaskets.

- Insert the M3 20mm bolts through the base and bottom TPU gasket, 25mm on the clip if you are using one. - Secure the antenna plug and make sure the battery cable doesn't get pinched during assembly. - Connect the antenna, battery, and insert the T096 unit into the body. - Align the lid TPU gasket. - Tighten the bolts by keeping the whole stack firmly pressed; use a light clamp if needed. - The bolts should snug up, lightly compressing the TPU. Be careful not to over-tighten them, as it will strip the lid holes. T114

Print a set of the T114-specific and Universal parts of your choice and color, including the TPU gaskets.

- Insert the M3 bolts through the base and bottom TPU gasket, 25mm if you are using the clip. - Connect the GPS module and antenna, and make sure the battery cable doesn't get pinched during assembly. - Insert the T114 unit into the body — the GPS should be tucked in as shown. - Align the lid TPU gasket. - Close up the lid and power on to confirm the display and buttons are seated correctly before final tightening. - Tighten the bolts by keeping the whole stack firmly pressed; snug them evenly and don't over-tighten, as it will strip the lid holes. Weatherproofing

The printed TPU 95A gaskets seal the case: one under the display, and one between the body and battery. Six M3 bolts compress the gaskets lightly to improve the seal. No silicone or adhesive should be required. I also included a USB-C port plug and a plug for the future-proofed battery base, if not using the matching belt clip. The belt clip itself already has a plug for the base hole, however.

Note: No IP rating has been measured or certified. Testing consisted of rain exposure, direct spray, and submersion in standing water, and the case sealed under these conditions. This is not equivalent to a laboratory IP rating and should not be treated as one for sustained submersion or pressurized exposure.

Don't care about weatherproofing?

Print the TPU parts in PETG, or the same material as the rest of the layers.

Changelog

V2 — September 2026

- T114, T096, and Tracker V2 support combined in the same project - TPU 95A gaskets for weatherproofing, including a USB-C port plug - Bolt-on belt clip added: it bolts onto the back and only requires swapping the two rear M3 bolts for the 25mm length - Future-proofed base added for the upcoming rotating solar mount - Legacy solar base carried forward from V1 V1

- Modular case for Heltec T096 - Housing for 3000 mAh LiPo - Alternative base plate for a 60mA solar panel Original release: Heltec V2/T096 Solar + 3000 mAh + GPS modular case

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