RepRap Electronics Assembly V2 - Modular Attempt

thingiverse

#RepRap Electronics Assembly V2# I've had it with my China MK3 Heatbed and opted for an aluminum build plate coated with PEI and a 230V silicone heater instead. The heater is connected through a solid state relay (SSR), but I realized that I won't be able to mount my SSR into the old RepRap Electronics Assembly without making changes to it and printing the entire bottom frame again. That's why I've made a rework, with the goal of making it more modular and sturdy. The bottom frame now only contains the mounts for an Arduino Mega 2560/RAMPS. The left side is completely empty, but you can fill it with the "modules" of your needs. The modules look like puzzle pieces, the frame accommodates space for one large module or one small and one medium module. With these modules, you can change the hardware of your 3D printer without the need to print a complete new frame, just replace the puzzle pieces. #Available modules# **Small modules** * Raspberry Pi Zero * 4x WAGO 221-415 ([WAGO 221 Mounts by joochung](https://www.thingiverse.com/thing:2075219) were integrated into this module) * Blank "design your own" (import this .stl into Tinkercad or the program of your choice and add your own stuff) **Medium modules** * SSR * MOSFET-Board * Blank "design your own" (import this .stl into Tinkercad or the program of your choice and add your own stuff) **Large modules** * Raspberry Pi 2/3 * Blank "design your own" (import this .stl into Tinkercad or the program of your choice and add your own stuff) The bottom frame still has four small bridges which allow you to zip tie cables onto it. There are also three versions of the top frame, they're all designed for a 120 mm fan. Use the first version if you want to mount a fan only. The second version contains a fan control (2 potentiometers) and a switch (I use that switch to turn the LEDs on my 3D printer on/off). The third version is a blank "design your own" one, you can add your own stuff. I've printed it in PETG with 4 horizontal and 4 vertical perimeters, 50 % infill at 0.35 mm layer height. All the parts are easy to print without support structures. Hope you enjoy it! #Dimensions# 150 x 120 x 80 mm (without fan control) 150 x 150 x 80 mm (with fan control) #Materials you'll need# 12x M4 nut 4x M4 bolt 20 mm (to connect top and bottom frame) 4x M4 bolt ?? mm (depends on the dimensions of your fan) 4x M4 bolt ?? mm (depends on where you want to mount it) 2x [Potentiometer](https://www.reichelt.de/stufenlose-luefterregelung-5-12v-inl-33806-p169015.html?) for fan control (optional) 1x [Switch](https://www.reichelt.de/wippschalter-1x-aus-schwarz-i-o-wippe-1801-1146-p36770.html?) (optional) Just in case you're thinking in imperial units: 1 inch equals 25.4 mm