In this below video Mr. Alexander Freund, Product Manager for Mouls and Die, of Siemens PLM explained the new and innovative update came in Siemens NX CAM 12
NX CAM for Manufacturing
Adaptive Milling, a new high speed milling strategy, introduced on last version of NX CAM,
The bottom up strategy, is newly introduced in Adaptive Milling on rest milling option, which will maintain an even stock for finishing, as explained on the video.
This method of machining are very useful on die, mould machining applications, to save a huge cycle time on roughing.