Processing a model for 3D printing on a hobbyist device does not always go smoothly. There are a variety of toolchains, each with their own quirks. Sometimes it’s necessary to double-check the final GCode output before sending it off to the printer.
The most popular tool for doing so is Pleasant3D for the Mac. Unfortunately, even though cross-platform tools do exist, there hasn’t been one with a similar ease of use. That’s where Joe Walnes’ web-based GCode viewer comes in.
With a simple drag-and-drop interface, Joe’s web app works in any WebGL-compatible browser.
Once loaded, the models can be zoomed and rotated for inspection.
Here are some example visualizations:
Yoda (with support material)