This is an enclosure for the Scarab Hardware miniSpartan6+ FPGA dev board ( http://www.scarabhardware.com/minispartan6/ ). The miniSpartan6+ is a nice low-cost Xilinx Spartan 6 FPGA board with 2x HDMI ports, USB, uSD, audio, etc. The enclosure can be used simply as a base for the board to snap into, leaving the top open... or you can print the top, which snaps onto the base, enclosing the board. There are two tops - one with the Scarab Hardware logo, the other with no logo. There are screw holes in the bottom, in case you want to attach the board to the base. There are openings for both HDMI ports, the headphone port, the Mini USB port, and the uSD slot... as well as holes to access the DIP switches, reset switch, and windows for the LEDs. The I/O expansion connectors are unobstructed inside the case, though I don't personally use them for anything right now, so I didn't create any openings for them. Openings for the I/O connectors can easily be added to the lid and/or the base.I printed this in black ABS using standard settings at 0.3mm layer height. While there are a few small overhangs, I used no support (the angles aren't too steep). Once both pieces are printed, snap the miniSpartan6+ into the base and snap the top onto the base. If you're using just the base, you can use #2 (or metric equivalent) screws to attach the miniSpartan6+ to the base.