Lilygo T-Echo Expanded Case

These models are intended for personal use only. DO NOT copy, sell, trade or otherwise gain from my designs without my explicit permission.

Anyone interested in licensing this design for non-commercial (i.e. private) sale can message me here to discuss.  Please respect the Creative Commons license restrictions I have chosen (http://creativecommons.org/licenses/by-nc-nd/4.0/) and I encourage anyone who sees my designs for sale contact me.

This is a case for the Lilygo T-Echo boards. I designed this to accommodate a larger battery and make the buttons less prone to accidental pressing. This case retains all original functionality, though moving the capacitive touch sensor to the new case may be less than trivial. I have little use for that component, and it fell off the first board I installed, but I gave the second board more care and can confirm it works as expected.

I recommend PETG or ASA for temperature/environmental resistance, though PLA will work fine if heat is not a concern. I have printed this with a .4mm nozzle and a .6mm nozzle with layer heights from .2mm to .32mm and it works just fine. I recommend printing the front/frame and buttons with enough walls and top/bottom to make it solid or use 100% infill. The back panel can do with some weight/material savings by adjusting top/bottom and infill percentage.

Required model files:

All of them

• 1x Front and Frame

• 1x Back

• 2x Buttons

Required hardware:

• Original Lilygo T-Echo (and hardware)

• Six (6) M3x8mm socket head cap screws

Optional hardware:

• 2x small double-sided foam tape pad

• MakerFocus 3000 mAh battery with 1.25 JST connector

This design re-uses nearly all components of the original T-Echo case but the shell and the screws securing the back panel to the front.

Instructions in gallery.

20240615 Update:

Removed external fillets and replaced with chamfers on front/frame. Added fillets on most internal angles for added strength. Added matching fillet to back for fitment.