Big Rear Ender

thingiverse

I like the extra room that a large rear case provides so I went all out and made the Big Rear Ender for my ender 3 which I lovingly refer to as the Spender 3. Because I have spent too much money on it. I added an additional 4040 extrusion to the sides of the printer in order to make it taller as well as feet that I modified from another thing. Also, I have added the 3dfused x,y and z axis linear rail kit. This mod will fit that kit as well as a standard ender 3 or ender 3 pro. I am not sure about the ender 3 v2. But it should fit. 24 volts from the power supply is routed through 2 sonoff wifi relays that allow you to remotely turn the raspberry pi and separately the printer on and off. The relays are also compatible with alexa which is what I use to remotely control them. The relays are rated for 32v and 10amps. There is also room for a buck converter that has a usb c connector which powers the raspberry pi. If you use a model 3 then you need to source another buck converter. #BOM: 1) BTT SKR 1.4T or other board that matches the hole layout 2) 40x40 24v fans 2) [Sonoff WIfi Switch](https://www.amazon.com/gp/product/B07F6YZXST/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1) 1) Raspberry Pi 4 1) [Raspberry Pi 4 Buck converter](https://www.amazon.com/gp/product/B07ZQB6S3L/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1) 100 pack) [3mm Heat Insets](https://www.amazon.com/gp/product/B01IYWTCWW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1) 100 pack) [M3x4 Button Head Screws](https://www.amazon.com/gp/product/B01AXURZP4/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1) 2) 3mm x 30 hex head screws 4) 3mm x 8 hex head screws 2) [Xt60 Plug Connector](https://www.amazon.com/gp/product/B07SC66V6W/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1) 2) [XT60 Parallel Battery Connector](https://www.amazon.com/gp/product/B082M6QFTQ/ref=ppx_yo_dt_b_asin_title_o02_s02?ie=UTF8&psc=1)