Create ipt for cast with or without giving

[mgeurts]

The company i'm working used to draw their casted parts in Autocad. They added the extra material (before milling) with a dashed contour line. Now we work with Inventor 2010 and the models are all created 'finished'.

Now the situation is that the CNC-programmer is adding this 'given' material in his Gibs-cam application in order to write his program. Due to that the discussion appeared what is best. To add the material in Inventor or in Gibbs. I'm interessted to hear some workarround according to this.

Mark Geurts

Inventor 2010

Productstream 2010

[JDMather · Accepted solution]

This topic has been covered here many times in the past.

Two options.

1. Continue as you are - designing the finished machined part and then Derive Component and use Delete Face with Heal and other modeling techniques (like Extrude, Thinken or Move Face) to remove machined features and add material to get to as-cast state.  This can be used as a dashed line Overlay in drawing and used directly for CAD/CAM.

2. Design as casting and then Derive Component and model the machine cuts.  Can also use the Overlay technique for 2D documentation.

[mgeurts]

Thanks for the quick reply.

[DVDM]

Could you elaborate on point #2? I thought the overlay feature was only possible with positional representations.

[SBix26]

One way is to place the two parts in an assembly, and use positional reps and view reps to make the overlay.

[cmcconnell]

I recomend #1 as it is much easier to always have enough material for your finished part and it makes more sense to drive your rough part with your finished part...