P3steel RAMBO enclosure re-mix

thingiverse

First, let me give credit to bula87 for his original design which you can see at thing:2964048. I really like this design much better than the original RAMBO box that comes with the Prusa. The hinges setup is much nicer and easier to use and install and it gives great access to the whole board. I have both an original Prusa Mk2 that has been upgraded several times to be a Mk2.5 but I also have a homebuilt P3Steel. I needed a RAMBO enclosure for Orballo and none of them that I saw were really what I wanted until I saw this one. Unfortunately, it was for a Printerboard and was lacking holes for cables or they were in the wrong places. I also wanted to be able to install cables without having to pull connectors off. I printed the original design and carved and drilled and glued until I got something that would work for me but it lacked elegance – actually it was downright ugly. The original design looks like it was done in Design Spark Mechanical and that wasn’t a program I wanted to take the time to learn. I had never used Fusion 360 but decided this would be a good time to learn it. So, I rolled up my sleeves and started. To make this long explanation a little shorter what I did was: • Removed the standoffs for the Printerboard used in the original and added stand-offs for the RAMBO board. That meant new stand-offs and holes. • I added a hole in the top for the RAMBO USB port. • I added a door with a fan just for this purpose. • Fan on the outside has less chance of interfering with the wiring. • Fan on the inside looks a little nicer but adding the grill is a little more involved. You can still use standoffs with either of the fan options as long as the standoffs are not too long. I would recommend using an 8 mm threaded standoff. Both doors have recesses to insert nuts similar to the method used for mounting the RAMBO. If you decide to use the fan, especially the version with the fan on the inside you have to be very careful about how you route your wiring inside the RAMBO enclosure or the wires could hit the fan blades or stop the fan. I used 18mm screws to attach the hinges together. I put a flat washer under the screw head and then used a Nylok type nut to hold the screw. Tighten it so it isn’t too loose but also so the hinge doesn’t bind. Depending on how clean the holes in the Rambo enclosure are for the 5mm magnets they might need to have a 5mm drill run into them a little bit so the magnet will sit flush with the face. I used PLA but I don't see any reason that ABS or PET wouldn't work just as well.