Zig-zag roughing in NCG CAM will take linear cuts across the job at fixed Z levels, similar to area clearance or core roughing passes. As these passes are linear, there is far less data involved and fewer changes of machine directions. At each level a profile pass is performed to remove the cusps around the parts profile at that level, before moving down to the next Z-level.

When creating the passes it is possible to stagger the passes. This is of benefit if roughing with a ball-nose cutter as the cusp height on the bottom of the cutter is kept to a minimum. When linking zig-zag roughing passes, there are options for one-way, bi-directional and zig-zag for the stock removal passes and climb or conventional for the profile pass.

NCG CAM has a raster roughing routine that will allow the roughing out of a part with a raster strategy that is also broken into Z-bands. When the cutter comes up against the form it follows the form up to the top of the Z-band for those passes; this ensures there is not a big step left. If using a ball-nose cutter the passes can be staggered to leave the minimum cusp height from the bottom of the cutter.
The linking for raster roughing passes has options for one-way and bi-directional.

Raster Passes1





We use cookies on our website. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience (tracking cookies). You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.