A improved version of my Meshtastic solar node: Easy to print, less parts required and stronger antenna thanks to N-connector.

Instead of a 10 W panel in a 45 degree angle this node now is using a 5W panel in a 30 degree angle. 

Print everything in PETG with 4 perimeters - except for that ring which acts as seal and needs to printed in TPU, it keeps the N-connector of the antenna dry. If you don't have TPU maybe try to wrap some other foam- or rubber-like insulation around.

This model comes with 2 different backs:

1. BackPlateMastHolder: Print this if you want to attach it to an antenna mast or something similar

2. BackPlateForZipTies: Has holes for attaching using 2 zip ties horizontally or vertically

Drill 2 holes in the junction box on the short sizes:

1. N-Connector: 16 mm diameter, center should have 14 mm distance from upper edge (if you drill the hole in the center the coax cable will collide with the battery holder).

2. M12 gland: 12 mm, almost center, maybe a few mm to the upper edge

Parts required:

Parts needed (AliExpress mostly):

• Junction box 115mm x 90mm x 55mm: Link

• M12 gland: Link

• 8 M4 brass heat inserts: Link

• 12 M4 screws in different sizes (6x 6mm, 2 x 12mm, 4 x 30mm), 2 washers: Link or a set like this

• 18650 battery case, parallel (for 4 batteries): Link

• 18650 batteries (preferably LiFePo4 or maybe Li-Ion)

• 1 U.FL/IPEX to N cable, 5cm: Link

• MPPT solar charger board: Link
  (this one is adjustable to different battery voltages (3.65 V for LiFePo4 or 4.2 V for Li-Ion, use bright sunlight and a multimeter)

• Battery undervoltage protection board: Link

• 5W solar panel: Link

• Antenna mast holder (optional - zip ties possble too): Link

• JST 1.25 cables: Link

If you want to make your own antenna, you can check my N connector PVC conduit adapter: https://www.printables.com/model/1540208-n-connector-antenna-adapter-to-20mm-pvc-conduit