Cutting these 18" tiles yesterday. The saw itself was about 1/8 inch out across the full travel but fortunately this could usually be countered, with a bit of cleverness, by the fact that the tiles were also out of square, though not by as much.
All in all, while I got the cuts made it was really a frustrating experience. I expected to be able to set up square cuts against the fence and cut. Ha. Even the simplest cuts had to be setup by shimming the tile against the fence and clamping it with a 2x4 scrap and cardboard.
Is this how it usually is for these large tiles? Or did I just get a bum rental tile saw?
I don't expect saws, especially rental ones, to be square, but I do expect them to have adjustments to make them square. This saw, an Ihmer, was a single welded unit. Apparently that's sold as a feature, i.e. "It will never go out of square." Right, til the first time someone drops it out of their pickup.