Once you have finished the modelling of the new stock body, turn off the visibility of the stock and the visibility of the part body back on. If you have more to add to the stock body it can be handy to turn off the visibility of the main part body while working on it. Now you will have two solid bodies in your part, I recommend renaming the new body to be stock. Select the new surface body, click apply and then done. Next select the Create the Stitch option on the Surface panel of the 3D Model tab. This will create a surface shell of your model.

Select the body that currently exists, choose the composite option under create new and be sure to untick the delete original. Once the model is at a state that it can be duplicated you can click on the modify panel dropdown on the 3D model tab and select ‘copy object’. TIP: Use the end of part marker to move backwards in a design to a point before the feature you wish to machine was created. If you are the original designer this should be easy enough, as at any point in the design you can just create a new solid body, but a CAM only user may need to work backwards a little. The first step is to create the solid body for the stock selection in the same part file. But if your part has been pre-machined to be mounted on a jig, originally cast and now needs to be milled to finish or is just a part that needs to have the set up flipped so that you can machine the other side, then I’d recommend reading the tutorial below to find out an easy way to create a solid body for selection as a stock.

The standard setup tool in HSM is great if you are starting from a standard stock that is either cylindrical, box or tube shaped.

Inventor cam hsm