Prusa i3 - RAMPS/Mosfet - housing

thingiverse

This is a work in progress! It's designed for "China clones" of the Arduino Mega 2560, so originals may not fit. I'm unsure if it fits similar printers like Anet A6 and others. Update: - 10.04.2020: You can now download the 3.0 housing under the following link: https://www.thingiverse.com/thing:4275562 - 03.02.2020 (Changed measurements: Arduino mounting base) This housing is for an Arduino Mega/Ramps on a classical Prusa I3 frame with the stabilizing plate on the backside. It includes holes for cable fixture with zipties and different outgoing holes for them. There are included supports that can burst out or not, to cover the holes after print. It has also a tiny mounting place for a "MP1584EN" Stepdown module to power the Arduino Mega (you have to dismantle the AMS1117). You'll also need to change the power ports from Ramps and Arduino Mega to "PCB terminal screws". I decided to set the height of the housing to around 80 mm, so it can mount up some "stepper stick driver protector diodes." The housing has to mount up 20 mm apart from the main frame as you can see on the pictures. Otherwise, the X-stepper will collide with the housing. I chose an 80 mm fan to cool the whole housings (especially the stepper stick drivers). To cover the fan, I prefer a "metal fan grill" because it lets the air pass well, is stable and silent (and I have many of them laying around...). But for sure you can print your own if you want. The MOSFET housing should be placed right next to the Ramps/Arduino Mega housing to make sure the air from the fan goes through it. If you don't need the MOSFET housing, you only have to print the RAMPS/Arduino Mega housing. You'll also need: - M3 screws and nuts (to mount the top, fan and electronics) - M3 to M5 countersunk screws and nuts (depends on your choice to mount the housing to the Prusa I3 frame) - Some zipties (to fix the cables) - Steppdown module "MP1584EN" - Diode (between Steppdown and USB input (Arduino)) - PCB terminal screws - 80 mm fan grill - Hot glue (to attach the nuts in the holes)