Object will not export; staying in two sections.

[opesey]

Hello all, 

I am having difficulty exporting a finalized part. I have checked all surfaces and components of the drawing that meet one another. I am getting two distinct groups when I got to unionize the part. Having these groups is a causing the part to be unable to export into an STL. Any help is appreciated and frankly, I have no idea how to fix it even if a solution is posted. Moving or resizing parts causes voids within the cylinders.

I have tried numerous times to redraw the part with all solid components but after unionizing the part, all components become hollow. 

Any help is appreciated. At this point, I would really like to understand why, if we could hope in a discord or something while a fix is being made, I would love to understand what I am doing wrong for future parts. I can happily compensate for the time as well. Attached is the drawing. 

Cheers!  

[pendean]

@opesey In AutoCAD, exporting to STL requires all of your objrcts to be 100% 3DSolids or Watertight Meshes.

You have none at all and you got the same error message I did at the commandline, yes?

[opesey]

Yes sir, same error message. 

[opesey]

I will only respond to this thread to negate any confusion. I am not in any class, just doing this as a hobby. 

When extruding, do I need to use a different command to make them all solids and not surfaces, that seems to be the underlying issue here with things not wanting to export. 

[pendean]

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@opesey wrote:

...When extruding, do I need to use a different command...

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Is this how you are doing it

https://help.autodesk.com/view/ACD/2025/ENU/?guid=GUID-B3B99AC4-B137-4144-A5ED-A8167906172D

That page has many links to additional instructions too.

[leeminardi]

Your surface model has many holes that keep it from yielding a solid model via the surfsculpt command.  I capped some of the holes (red and green objects in the image below) but more needs to be done.

I think you should use extrude or sweep to create solids.  If the object outline object you use to extrude is a closed shape it can be used to create solids.

[opesey]

Yes, using that method. All parts remain solid until the union command, after that, it seems to hollow out most items.

[pendean]

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@opesey wrote:

Yes, using that method. All parts remain solid until the union command, after that, it seems to hollow out most items.

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Union command? How was that used and on what?

[opesey]

it was used on the whole drawing after i complete it, to essentially make the whole drawing "one piece"