Nice, simple and clean design. It looks like i have the same relay (Hi-Letgo) as in your images but the pins running lengthwise were about 2mm to far apart to get it to set in place. Since they just keep things straight i clipped 2 off of one end and it fit in nicely. Nice tight tolerances around the board, the lid actually snaps in place and stays put which was a concern of mine prior to printing. The wire holes are quite narrow, i'd like to see the cutout about 2mm higher up and maybe another 2mm taller but thats nit picking. I simply took a thin file and made my opening larger so i could fit 18awg wires through it. Nice work on this model, i'd recommend anyone give it a shot
