About this 3D model

This is a weatherproof (or waterproof depending on the version) case for a RAK19003 based Meshtatic node. Since the RAK19003 includes a Li-ion charging circuit and solar panel input port, the cases have room for a 2000mAh Li-ion battery and some models have a hole for running wires from a solar panel. # Features The various versions have differing combinations of these features, indicated by the .stl name: ## Case USB - has a slot for accessing the USB-C port on the board (this is a power+data port) Solar - has a threaded hole to accept an M8 cable gland to run wires from a solar panel Mag - has a hole in the back of the case to fit an M3 heat-set insert for attaching a countersunk magnet to the case NoAntenna - has the antenna hole omitted in case you want to use a small embedded PCB antenna ## Lid Holes - has holes for M3 bolts for attaching the solar panel arm Oled - has a cutout for a 0.96" OLED display (this version is definitely not weatherproof) The Solar-Arm and Arm-Mount models are for attaching a pivoting solar panel directly to the lid of the case (simply using 20mm VHB tape), making an all-in-one solar-powered Metastatic node. # Waterproofing - The USB feature obviously can't be used as it's just an open hole in the case. For general weather resistance, the hole should be fine since it's on the bottom of the case. - The model TPU-Seal should be either printed out of TPU (or other flexible material) or cut out of some flexible gasket material. This provides a seal between the case and the lid. - The SMA antenna hole has a countersink on the inside of the case to use an o-ring seated between the rear hex of the SMA connector and the case. - The M8 threaded hole has a countersink to accept an o-ring on the cable gland, which, in combination with a round wire (as opposed to multiple wires) should create a water-tight seal for the solar power input. - The model TPU-Mag-Seal should be either printed out of TPU (or other flexible material) or cut out of some flexible gasket material. This provides a seal around the hole used to mount the magnet. Alternatively, a 16mm OD 1.5mm thick o-ring can be sandwiched in the groove in between the magnet and the case. - The Lid-Holes model includes indents to accept o-rings around the screws, providing a water-tight seal for the Arm-Mount. - Finally, the 3D prints themselves have to be waterproof, so using PETG, printing slower, hotter, and with less cooling, and using at least 3-4 perimeters is recommended. # Materials Note: The links are just example parts that will definitely fit, they're probably not the cheapest way to get the parts. Also, the links may die in the future if the listings are removed, in which case, you're on your own for finding the parts (that should be pretty easy though). ## Basic Case - 4x M3x6mm heat-set inserts [Amazon](https://www.amazon.com/gp/product/B087NBYF65) - 4x M3x8mm machine screw [Amazon](https://www.amazon.com/dp/B09TKSWCZR?th=1) - 4x M3 washer [Amazon](https://www.amazon.com/dp/B0B5GXMVRG?th=1) - 3x M2.5x4.5mm heat-set inserts [Amazon](https://www.amazon.com/dp/B07HKT5W7S?th=1) - 3x M2.5x8mm standoffs [Amazon](https://www.amazon.com/dp/B08F1YJX2Z?th=1) - 3x M2.5x3mm machine screws (I used the ones that come with the RAK19003, but any that are 3mm to 8mm long should work) - 1x SMA to U.FL 5cm cable [Amazon](https://www.amazon.com/dp/B01AJQ33Y4) (you can use longer, but it will get messy having extra cable in the case) - 1x 5mm o-ring [Amazon](https://www.amazon.com/dp/B01N75JL0F) (I used the o-rings that people buy for keyboard modding because they're extra soft and very cheap) - 1x SMA LoRa antenna [Amazon](https://www.amazon.com/dp/B095JTW6XM) (link is 915MHz for North America use) - 1x 2000mAh Li-ion battery [Amazon](https://www.amazon.com/gp/product/B07TVDQ251) (any battery will work as long as it's less than or equal to 46x44x9mm) - 1x RAK19003 Mini Base Board [rakwireless](https://store.rakwireless.com/products/wisblock-base-board-rak19003?m=5&h=wisblock-base) - 1x RAK4631 (nRF52840) or RAK113100 (RP2040) Core Module [rakwireless-RAK4631](https://store.rakwireless.com/products/rak4631-lpwan-node?m=5&h=wisblock-core&variant=37505443856582) [rakwireless-RAK113100](https://store.rakwireless.com/products/rak11310-wisblock-lpwan-module?m=5&h=wisblock-core&variant=40830755602630) ## Magnet Add-on - 1x M3x6mm heat-set inserts [Amazon](https://www.amazon.com/gp/product/B087NBYF65) - 1x M3x10mm countersunk machine screw [Amazon](https://www.amazon.com/dp/B07DWVDDWC) - 1x countersunk magnet [Amazon](https://www.amazon.com/gp/product/B0C7M4LSBJ) - 1x 16x1.5mm o-ring [Amazon](https://www.amazon.com/dp/B07D9NSQJT?th=1) ## Solar Add-on - 1x M8 nylon cable gland [Amazon](https://www.amazon.com/dp/B01MZXMWMR/) (I may try to modify the case in the future to support the much more common M12 cable glands) - 1x 5V solar panel [Amazon](https://www.amazon.com/dp/B0BJPWGM4D) For solar arm assembly: - 2x M3x8mm countersunk machine screws [Amazo