M5Stack LoRa Cap + Antenna — Stackable Gridfinity 3x1

The tray has a continuous upper stacking lip, allowing another Gridfinity bin to sit above it. Generous relief pockets make room for the contact pins, mounting ears and end projections without requiring a tightly fitted contour.

Features

• 3×1 Gridfinity footprint with a 5U stacking datum.

• Dedicated module pocket and separate antenna channel.

• Enlarged pockets for the pins, ears and end projections.

• Flat main seat, without small raised support pads.

• Finger cutouts for lifting the module and antenna.

• Optional pockets for twelve 6×2 mm magnets.

• One-piece print; no assembly required.

Loading the tray

Remove the antenna. Place the LoRa Cap contact pins down, SMA connector up. Put the antenna in the long channel alongside the module. Lift the module using the end cutouts rather than pulling on the RF connector.

Tray dimensions: 125.5 × 41.5 × 38.8 mm, including the stacking lip. The module pocket is 85 × 25 mm. The antenna channel is 110 × 10.5 mm, with an 11 mm depth, designed around the stock antenna envelope of approximately 108 × 9.3 mm.

Larger replacement antennas may not fit. Before stacking, make sure the stored parts stay below the base of the upper bin.

Compatibility and testing

The latest version was printed successfully on a Bambu Lab printer in PETG with the slicer's default settings, and the fit was checked with the LoRa Cap and antenna.

The CAD reference used the official U214 LoRa-1262 housing together with the U201 LoRa868 drawing. That reference is not a claim of physical testing with every LoRa Cap variant. The intended device for this release is the U201 LoRa868.

Printing and files

Print with the Gridfinity feet on the build plate, at 100% scale. Check the layer preview around the relief pockets and stacking lip. Magnets are optional.

Included: STL, geometry-only 3MF, editable STEP. The 3MF does not contain a printer or filament profile. Dimensions are in millimetres.

Gallery images in the package are CAD renders, not photographs. Electronics, antenna and magnets are not included.

Credits and licence

Reference documentation: M5Stack Cap LoRa868 and M5Stack Cap LoRa-1262. Gridfinity was created by Zack Freedman. This is a community accessory, not an official M5Stack product.

Creative Commons Attribution–NonCommercial–ShareAlike 4.0 International (CC BY-NC-SA 4.0). Credit the creator shown on this listing, use the design noncommercially, and share adaptations under the same licence. Licence terms.