Security Cam - Hardened version

thingiverse

This is a remix of a remix and my first attempt at using openSCAD. Thanks to perb1970 and his great work, I was able to create the SCAD file. By taking it apart piece by piece, I figured out what I wanted to do with the security camera and ended up hardening it for outdoor use. The changes are numerous, but include adding o-ring seals on all of the parts, an end cap to cover the SD card and reset button, comments as I figured out what each part did, and some customization for indoor (with ports and fan exposed) and an outdoor version with all of the side ports of the pi zero covered up. The rain hood is not really necessary due to the seals, but still may be a good idea for added protection. I will back in perb1970's UPS battery design when I get the chance. The camera cover is designed to have a small piece of perspex (25mmx30mm) placed in the opening and sealed with silicon. Nothing thicker than 3mm. Power is brought in via a hole on the bottom next to the mount point, where you tie a knot as a strain relief but do not seal the hole. Connections points for +5vdc are on the bottom of the board under the PWR USB port. See this drawing for the solder points - https://cdn.shopify.com/s/files/1/0270/0585/files/PiZeroConnections_large.jpg?14913446398312428817 Version 2: In an effort to minimize the potential for water ingress, I redesigned the main body. Changes are: - The top is now a solid part of the main body. - The pi zero now mounts upside down. - Spacers had to be about double in height and a pair of m3x25 (I think) are now needed. - The front piece was extended and the opening size increased, with a small ledge added inside to support the installation of a 25mm x 30mm x 3mm piece of perspex. Electronics: Raspberry pi zero W - https://www.raspberrypi.org/products/raspberry-pi-zero-w/ Raspberry pi camera module - https://www.raspberrypi.org/products/camera-module-v2/ Cable for camera to pi zero - https://www.amazon.com/gp/product/B07T4SHQ28/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1 Screws are all socket cap: - M3x6 - pi zero (front screws) - qty 2 - M3x8 - bottom (front) cover - qty 2 - M3x10 - end cap - qty 4 - M3x20 - front cover - qty 4 - M3x25 - bottom cover through spacers and pi zero mount (rear) - qty 2 - M2x6 - raspberry pi camera module mount - qty 4 The "nut trap" takes either a #8-32 nut or an M8.5. Seals: - Screw o-rings - 3mm x 1.5mm (1.5x3mm) Metric Buna-N NBR O-Rings (https://www.amazon.com/1-5x3mm-Metric-Buna-N-Durometer-Section/dp/B0180EQ0N8/ref=sr_1_2?keywords=6mm+OD+3mm+ID+o+rings&qid=1577400221&sr=8-2) - Front and rear o-rings - Nitrile Rubber 44mm x 48mm x 2mm Seal Rings (https://www.amazon.com/gp/product/B07GJHV9XG/ref=ox_sc_saved_title_1?smid=A1THAZDOWP300U&psc=1) - Bottom gasket seal - .079'' (2 mm) Silicone O-Ring Cord Stock (https://www.amazon.com/gp/product/B00QVB0ZG6/ref=ox_sc_saved_title_2?smid=A3FZE1HJFVXQMI&psc=1)