When a task has parts from multiple work orders, there are three different strategies available to control how the parts are handled during nesting:
And in cases where work orders are not mixed, you can also set the Separation crop type.
The controls for these settings are found in the Advanced tab of Task Parameters.
Required Module(s): [MX1035] Continuous Nesting
Note: For all screenshots in this article, the parts are colored by work order so that you can see how the parts are grouped under the various strategies. Multiple layouts will also be displayed to see the results across multiple nests. To color your parts by work order, you can modify the Attributes > General settings through the Quick Access Toolbar.
Option #1: Do not group work orders
This is the default method for handling multiple work orders. Parts are placed for best fit and material yield and not intentionally placed near parts of the same work order.
If you are looking for the best yield possible, this is a good method to use. The downside is that parts from each work order are not grouped together, which may make it unloading and sorting more difficult.
Option #2: Group work orders
This method gives priority to parts from the same work order during nesting, meaning that it will try to them near each other. However, if a small part can be nested to improve yield near parts that are in a different work order, it will be nested away from its work order to improve yield.
If you're looking for an in-between method that balances proximity with nesting efficiency, this is the best choice for you. Parts will be easily unloaded and sorted, with the exception of a few parts that may have been moved in the interest of better yield.
Option #3: Do not mix work orders
The final option separates parts from each work order by a "crop line," making it very clear which parts belong to each work order.
Note: This crop line type only applies to the boundary between work orders. It is not necessarily applied as NC. See Separation crop type to learn more.
- Crop Line and Crop Step creates the crops in the same way as NC crop.
- Spacing defines the clearance between parts of different work orders.
- Minimum Strip Width is only used with Crop Step 1 and 2, and has the same effect as the NC Crop Line Minimum Strip Width.
If you work with inexpensive materials and want to prioritize faster sorting over higher yield, this method is a good choice for you. Compare the following layouts with those above to see the difference.
Separation crop type
When using Do Not Mix Work Orders, you can apply NC to the separation crop line, depending on your application. Either way, you'll need to select one of the following separation group crop types (as set in the Task Parameters):
- Crop line (a straight, vertical line)
- Crop step 1 (a rectangular crop line that follows part edges)
- Crop step 2 (a non-rectangular crop line that follows part edges)
Use the following additional steps if you want to apply NC to the crop line:
- After nesting the work order parts, open Auto NC.
- Go to the Crop Sheet tab enable Separation Crop.
- Choose the cutting process from the Separation Type list.
Choose the cutting sequence from the Separation Sequence list:
- First will cut all separation crops, then do all the part cutting.
- After Each Work Order will cut the crop after the work order is finished cutting.
- Last will cut all separation crops after all parts are cut on the nest.
- Continue setting your Auto NC parameters as usual, then apply NC.
Note: Your regular crop choice will still apply to any partially nested sheets and remnants may be created from any of the separation crops or normal crops.