The problem is that nesting involves shape recognition. That is much easier for a human (something we do every day) than it is for a computer. It takes a lot of complex code to do it right (perfect). If you have a CAM tool that allows you to rotate, step & repeat and repeat multiple groups of objects, it's usually faster to do it manually. Unless you are a job shop that does lots of small qty shapes that are continually changing where laying up a sheet is new each time, the nesting programs have a long payout.
Some of the high dollar programs deliver on the promise. |