I have seen and used a program that took my G-code and a defined block of material and tools and commenced milling, creating a rendered 3d object as it went along. All I can find now are programs to make tool path lines on a grid. It was a fairly simple program, too. It didn't have a lot of features, but it would show you if you had some interference somewhere. You could roll it around in 3D and examine it, making sure it was what you wanted before you went about making chips. Can't find it now and don't remember the name of it. Anyone know what it is or one that does that? It was suitable for beginners. Thanks.
cnc1000