Hey. I can't find the option to pre-drill a hole for cavity milling a pocket, to avoid engagement in solid material. Can I have at least a slight suggestion which option to use? I am using NX 10.
You need to drill holes with another operation first. And then select those drill points in the cavity milling:
Non cutting moves->Start/Drill Points Tab->Predrill points
Sometimes you are better off setting the Non-Cutting moves - Engage - Closed area to Plunge and then create a drilling operation to drill where the system wants to engage rather than trying to force it to engage someplace else. You can then re-order the operations.
This has always been a pain, IMHO
Being on same with @joycejo's suggestion, and assuming you are using old drilling ops,
Try this on drilling operation window:
Edit parameters->Click OK->Click Depth->Choose "To Bottom Surface"->Click OK
You can use Hole making or Legacy Drilling ( if you have it available)
For Holemaking - on the Feature Geometry use the Point dialog to select a point. where you want to drill from. You will also need to override the depth values.
I will sometimes still use the "Drilling" operations so I can control the Engage and Retract.
Sometimes it is worth it to create a point and use this as the point to drill from and start point for the operation.