I need your help. Is there a feature command that make the inside of this mold completely solid without affecting the outside feature (bottom).
It looks like you've got a flat parting line, which makes it easier. If there weren't any holes in the part, you could just put a sketch on the parting line, convert edges on the outside edges of the part, and then Extrude Up to Body to fill it in. Because it looks like there are some holes, it will get trickier. If you can leave the holes, you could just convert edges on them as well. If you need to fill them in, it would probably be easiest to leave them out of the initial Extrude, then fill them in with another extrude up to wherever you want the shutoff surface to be. This may involve making some surfaces to extrude up to.
If you need more control, then you may have to make a surface to extrude up to. Most of it would just be offset 0 from the outside, or possibly inside, surface of the part. The rest would define your shutoff surfaces for the holes.
Perhaps you could offset all those inside surfaces at 0.000" (really just copying them) and cap the offset surfaces with another surface. Hide the solid body after creating the offset surfaces, select all the edges of your offset surfaces, and select Planar Surface. If the open area isn't truly planar, you'll need to create the bends or facets of the capping surface individually (extrude, sweep, loft, fill, whatever). After creating your capping surface, select your offset surface body and your capping surface and the Knit tool--and within the Knit dialog box, select the Try To Form Solid option with the Merge Bodies option to turn all your solid bodies into a single solid body.
Let me give it a try to see if I can get to work.
Jeff and Jerry
You guys are too advanced for me. I got it to work my way but encountered one problem. I couldn't get the extrude to merge for both side (used merge surface for both side), one side I got it to worked--I have no idea how it does this, and the other not. Both side I used 'extrude to surfac'e and then 'merged', am I doing something wrong here? Pleas help to get other side to blend in or merge.
It's hard to say without the actual part. Looking at your original image, the two ends are actually different, so that may have something to do with it.
On the other hand, I have had symmetrical parts that had similar problems, where a symmetrical operation would result in slightly different shapes on the two sides.
I got it. The sketch wasn't on the edge.
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