Anet A8 E3D Direct X-Carriage w/ Probe (46mm)

I am giving credit to IsmaelPR1 for his a8 e3d direct mount design, which I used as inspiration for my x carriage design. His original design is unfortunately meant for 45mm rod spacing (older a8's), lacked a decent z probe mount solution (other remixes with probes were off mark IMHO), and had some minor design issues (mainly the X-belt hole fit, and cooling flow arrangement). I also wanted to add a few creature comforts to complete the bill; so I got out my calipers and freecad, and started from scratch for a complete redraw. This carriage fits newer A8's with 46mm rod spacing. I added a mount for an M12x1 threaded probe, with 0 y offset, and 33mm x offset (...17b.stl, otherwise see update for M18 probes). There is also a teardrop shape hole above the probe mount to give clearance for larger probes (my clone induction probe is LOOOONG and needs that room for the wires). I also redesigned the right side structure to improve air flow. I added a strain relief for the wires, a slotted