PSU relay housing for Pi Octoprint / Octopi

thingiverse

**PSU Relay Module Housing for Pi Octoprint** I have a Taz 6 with enclosure + LED lighting connected to a Raspberry Pi running Octopi/Octoprint. The relay controls power for both the Taz 6 and enclosure lighting. For my Ultimaker 2+ with its built-in lighting, the single channel relay only controls power to the printer. <a href="https://imgur.com/Cn0j4Nt"><img src="https://i.imgur.com/Cn0j4Nt.jpg" title="source: imgur.com" /></a> This is two variations of the enclosure, a smaller enclosure for single-channel relay module and a larger enclosure for a relay module plus and 120-12v LED powersupply. <a href="https://imgur.com/NVaASlG"><img src="https://i.imgur.com/NVaASlG.jpg" title="source: imgur.com" /></a> <a href="https://imgur.com/Cn0j4Nt"><img src="https://i.imgur.com/Cn0j4Nt.jpg" title="source: imgur.com" /></a> **The Relay** The relay has some markings in Chinese: - The characters on the left connection, 常开 (cháng kāi), mean "normally open" - The characters in the middle, 公共端 (gōnggòng duān) mean "common" - The characters on the right, 常闭 (cháng bì), mean "normally closed" **For the LED PSU** [AMAZON: 12V 2A AC Adapter](https://www.amazon.com/SODIAL-Adapter-Power-Supply-Transformer/dp/B01EHQ3LS0/ref=sr_1_1?keywords=led+power+supply&qid=1548120357&sr=8-1) The power cables I used have 18 gauge wire, so I used 18 gauge wire to patch between the cable and the LED PSU. This is the connector I used to tap into the negative (white) wire: [AMAZON: T-Tap Electrical Crimp Connectors](https://www.amazon.com/gp/product/B07HK3C5CX/ref=oh_aui_search_asin_title?ie=UTF8&psc=1) This is the connectors I used to connect the wire to the GPIO pins on the Pi and relay: [AMAZON: Dupont Male/Female Pin Connector](https://www.amazon.com/gp/product/B012EOO9Q0/ref=oh_aui_search_asin_title?ie=UTF8&psc=1) Connectors and socket: [ALIEXPRESS: Male Female Plugs](https://www.aliexpress.com/item/10PCS-XH2-54-2-3-4-5-6-Pin-Pitch-2-54mm-Wire-Cable-Connector-XH/32910674733.html?spm=2114.search0104.3.72.2b6b4360ozUUYr&ws_ab_test=searchweb0_0,searchweb201602_3_10065_10068_10130_10890_10547_319_10546_317_10548_10545_10696_453_10084_454_10083_433_10618_431_10307_537_536_10059_10884_10887_100031_321_322_10103-10890,searchweb201603_50,ppcSwitch_0&algo_expid=29592bf2-4bf2-43a1-9e93-1fc7d658a72f-10&algo_pvid=29592bf2-4bf2-43a1-9e93-1fc7d658a72f) The screws used to put them together: [#6 x 3/4 in Sheet Metal Screws](https://www.homedepot.com/p/Everbilt-6-x-3-4-in-Zinc-Plated-Oval-Head-Phillips-Sheet-Metal-Screw-25-Piece-Pack-802402/204596356?cm_mmc=Shopping%7CG%7CBase%7CD25H%7CMulti%7CNA%7CPLA%7c71700000032394431%7c58700003837562549%7c92700030712663209&gclid=Cj0KCQiA-JXiBRCpARIsAGqF8wU0kfD43REvpuqjExDF8Av3lwQz326qtfl3PK-XlbzuHf30lnzgbIYaAq-3EALw_wcB&gclsrc=aw.ds)