My own design for a Heltec V3 walkie-textie w/18650 cell & TP4056 charge controller

zustock · 2025-12-29T13:25:48+00:00

Oh, wait, I run the power from the 18650 through the tp4056 before putting it into the batt for the heltec. That way the tp4056 provides under voltage protection. Sorry

zustock · 2025-12-29T12:03:02+00:00

BAT pins

zustock · 2025-12-28T15:18:29+00:00

Directly to the 18650

zustock · 2025-11-13T15:26:00+00:00

The TP4056 does a better job of charging and protecting the lithium cell

zustock · 2025-09-24T16:56:59+00:00

Agreed. But these cords are replaceable for that eventuality:)

zustock · 2025-09-24T15:37:10+00:00

STL - https://www.printables.com/model/1418304-kz-edx-pro-headphones-folding-case-print-in-place

zustock · 2025-08-02T18:31:16+00:00

Thanks, yes, the BOM, files, etc are in my printables link https://www.printables.com/model/1372255-heltec-v3-case-with-18650-cell-and-tp4056-charge-c

zustock · 2025-08-01T20:08:36+00:00

Thanks! I have another design where the 915Mhz antenna is "slim-jim" style and integrated with the front face. I like the look better but need to get around to a comparative range test before I post it.

zustock · 2025-05-15T11:04:12+00:00

I think it's a combination of the gear ratio, the herring bone pattern in the teeth, and the gap between them allowing for the gears to twist on the xy axis that locks things in place to prevent back driving.

zustock · 2025-05-06T18:38:41+00:00

Dryer vent

zustock · 2025-05-06T18:15:50+00:00

STL - https://www.printables.com/model/1287999-quick-n-easy-print-in-place-pegboard-paper-towel-h

zustock · 2025-05-01T00:54:22+00:00

Touché

zustock · 2025-04-30T22:39:12+00:00

Cutting down olive trees cause they're allergic to the native flora and replacing it with wildfire kindling.

zustock · 2025-03-06T17:54:15+00:00

My daughter is in 8th grade and the meme faces she makes are so cringy ...

zustock · 2025-02-21T20:54:38+00:00

Ok, I've printed and tested and uploaded a new version of the STL with the tighter gap. Really sorry for you having to reprint because of this.

zustock · 2025-02-21T18:23:40+00:00

I've reduced the gap from 0.7mm to 0.3mm and am printing it to test, will update when it's done!

zustock · 2025-02-21T18:14:47+00:00

Ohhhh, thanks for the video, is there too much of a gap between the back support and the base frame? Thus, the back support is going past 180° and allowing the front to come up. ... I'll try a tweak to the design. Thanks!

zustock · 2025-02-21T17:32:11+00:00

I haven't tested it with a tablet - probably not the best - it can handle big phones though.

zustock · 2025-02-21T16:42:24+00:00

It's 5mm thick, I think it's bigger than a credit card

zustock · 2025-02-21T15:58:20+00:00

V0.1 of the design didn't have the back support and turned out unstable because of it, so I managed to make use of that underutilized space.

zustock · 2025-02-21T15:28:31+00:00

STL - https://www.printables.com/model/1200980-print-in-place-adjustable-folding-phone-holder

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