The 4-axis G-code viewer
that actually works.

Load rotary G-code and see the real wrapped toolpath — the C axis unrolled onto the part, drawn as a curve on the cylinder. Scrub the whole program by machining time.

You’ve fed your rotary .nc to a dozen backplotters. They choke, or they draw a straight chord from C0° to C350°, or they plot C as a phantom fourth line going nowhere. RotatoVIEW doesn’t — it’s RotatoCAM’s main engine, reconfigured as a standalone viewer. The exact backplot that drives the CAM app, pulled out on its own.