Creating a positive form of a differential housing

[0841946]

I want to create a positive form of the inside of a differential housing.

My idea was to put two planes on the edges of the housing. Then using the Sculpt Tool to 

create a New Solid of the inside of the housing. 

With the Derive Tool i could seperate the two Solid Forms from each other.

BUT... When I want to create a New Solid with the Sculpt Tool I get the error ' Create Sculpt feature failed'.

I've tried to Derive the part to a Sureface model, but that didn't help anything. 

I've spend hours working on this problem, but it's not going to work with my skills.

Could somebody give me a push in the right direction?

Thank you very much!

File is to large to upload. So I attached some pictures. 

[JDMather]

Find the red End of Part marker in the browser.
(End of Folded on sheet metal parts EOF)
Drag the red EOP to the top of the browser hiding all features.

Save the file with the EOP in a rolled up state.

Right click on the file name and select Send to Compressed (zipped) Folder.

Attach the resulting *.zip file here.

Derive as surface body.

Delete one face.

Patch ends.

Sculpt.

[0841946]

Thank you for your tip. But the original file is 12MB, I can't size it down to 1,5 MB

I've made a simple part, a cilinder with one open side, and even with this part it doesn't work. 

My idea is to fill the cilinder with the Sculpt Tool to a New Solid. Maybe you can give me a tip what 

i'm doing wrong. With that tip i can try it on the differential. 

Thank you!

[JDMather]

Now I am confused.

I thought you would have a solid part that you would Derive Component as a surface body and Sculpt to fill the void.

The file you attached is not solid or surface derived from solid?

Have you installed all Service Packs for your version of Inventor?

1. Create a solid body. (it should be simple to create something similar to your differential housing with a Revolve, Extrude and Shell)

2. Start a new part file and select Derive Component and select the part from Step1 and set to Surface Body.

Attach the two files from Step 1 and 2 here.

[karthur1]

I don't know what you are doing that is not working, but here is what I did to sculpt the cylinder that you supplied. http://screencast.com/t/DUbOmrqBjHvH When you are using the sculpt tool, it has to be "Watertight" in order for it to work. For the part in your original post, you could zip it and then upload that to a host site. I use WeTransfer.com. You can put your files there and they will stay live for 7 days with a free account. If you can zip it up like JD said, I would take a look at what you have.

Kirk

[0841946]

Sorry send you the wrong file. See attachment for the right file. 

This is my plan:

I want a possitive print of the inside of the  differential. To do this, I want to use Sculpt to create a new solid.

With the Derive Tool i can separate the two solids.  

But I get an error when I use Sculpt

Because I can't send you the file, I made a simplified part. It's a hollow cilinder and i want to create a New Solid of the inside of the part. Even with this simplified part, I get an error.

I will check if i have installed all of the service packs. Thanks for the tip. 

Sorry, I'm from Holland so language is an issue here  

[JDMather]

Now derive your cylinder into a new part.

1. Start new part file.

2. Select Derive Component and browse to your cylinder.  Set the Derive to bring in as surface body.

3. Delete one of the outer surfaces.

4. Patch the hole(s)

5. Sculpt.

Any changes made to the original will update the derived component.

[0841946]

Thanks for your help!!

I've tried exactly what you have done, but I still get an error.

By the way: Why do you delete a surface? I don´t get that part.

This is the download link for the differential:

http://we.tl/Cjyi2hTAXd

This makes it alot easier.

[JDMather]

Attach the derived part here that is returning the error.

(I deleted a face so that the only "water-tight" envelope would be the inner cylinder after patching.  Otherwise the enter thing would have turned solid.)

[JDMather]

Here is the Core of your casting.

And another image from the other side with the surface body visible.

[0841946]

Thanks JDMather

I've installed Service pack 2 and that solved everything!!

I still don't understand why I have to delete an outer surface, can you explain this step?

Didn't see your other post 😉

Thank you very much for your time, I appreciate it!