Prusa MK3 MeanWell RSP-320-24 PSU Cover for Solid State Relay

thingiverse

**WARNING**: *This project will involve tinkering around with mains cabling. If you're not comfortable with working on mains cables and don't have the proper equipment to do so (cutting, crimping, etc...) then don't undertake this project.* This is a remix of [astromech8037's](https://www.thingiverse.com/astromech8037/about) MeanWell RSP-320 cover for the Prusa MK3, all credit to the great design goes to him! The cover has been extended to accommodate a solid state relay, along with the power panic board and switch inside the cover, so no mains wires are exposed. I have also extended the cable outlet to give more room for extra cables to an external controller. Using a solid state relay provides remote power control of the printer via an external controller (I use the [PSU Control](https://plugins.octoprint.org/plugins/psucontrol/) plugin through Octoprint and a Rasapberry Pi 3B+). I am using a [Fotek SSR-25 DA](https://www.amazon.co.uk/gp/product/B01K9GN93E/ref=ppx_yo_dt_b_asin_title_o07__o00_s00?ie=UTF8&psc=1) to control the mains voltage input into the PSU. I have not tested to see if any other relay modules will fit into the case. For assembly instructions and required hardware, check out this [post](https://shop.prusa3d.com/forum/user-mods-octoprint-enclosures-nozzles--f65/alternate-power-supply-meanwell-rsp-320-24-t15707.html) on the Prusa Forums by jonathan.r14. Please note the "bracket" has been designed so that the top hex nut pocket is enclosed on the top, allowing a printer to properly bridge over the gap. You will need to make a hole so that an M4 bolt will go through to the nut. **Update 19/01/2019**: Adjusted housing so bolt holes line up properly with base tabs.