I am cad-ing a pretty easy part with a couple of holes, it looks good in fusion360, and it looks just the same when simulating the part in chilipeppr simulation. When running the program, some (but not all) holes are ovals, and I clearly see the spindle going out of its normal path on the chilipeppr screen. Where is the problem? Is it in how Tinyg interpret the g-code? Is it fusion360 cad software?