Vise_Sliding_Jaw_Rod_M12x4 one piece

I built the original with vertical shafts. I didn't have a tap and die set to chase the threads and they were very stiff. I feared breaking them.http://www.thingiverse.com/thing:2064269


So I tried his horizontal set but could not get the damn 2 half's to screw into the gears or base. http://www.thingiverse.com/thing:2123529

Looking at the model I noticed the sides had been flattened so I figured why cut it in half, should print just fine whole.

I took the 2 halves, rotated and j