+ PartDesign Additive shape container
+ PartDesign Subtractive shape container
They are somewhat similar to PartDesign Booleans, but I think they are a bit more useful. Here's an example of why you might need them.
Let's say you are modeling a flange, with a non-circular opening. Lets use a slot. We want screw holes around the opening...
There is no PartDesign pattern (AFAIR) that can produce the necessary holes, but there is a handy tool in Draft workbench that can help, Draft PathArray
. This is where PoM Subtractive Shape comes in.
* Create Subtractive shape container. You will be presented with an empty screen, where you should model the shape that cuts the holes.
* Add shapebinder of the sketch that was padded (select Sketch in tree, and click PoM Shapebinder).
* From Sketcher workbench, create a new sketch, and constrain up a slot that goes through the centers of future screwholes.
* From Part workbench, add a cylinder, and set it up to have the right radius, and enough height to penetrate all the way through. Leave it at the origin
* Select Cylinder, Sketch001, and apply Draft PathArray
* Done! Leave the container to get back into Body (e.g. use PoM Leave command, or double-click Body in tree).
You may need to click Recompute button to see the result. Also, there is a chance Tip property of SubtractiveShape isn't pointing to the actual shape to use for cutting (PathArray). In that case, you can fix it by using PoM Set as Tip command.