Creating a Plane With a Hole In the Middle

[Anonymous]

I would like to create a plane with a shape removed from it. Surface trim doesn't seem to work when the object is on the interior of the surface.

[maxim_k]

Welcome to Autodesk Forums!

Hi Jacob,

Have you tried REGION command?
http://help.autodesk.com/view/ACDMAC/2020/ENU/?guid=GUID-8F8D5B88-3E66-450B-B582-A717877DA29A
You can create Region objects from closed poly lines and then use SUBTRACT command to cut a hole:
http://help.autodesk.com/view/ACDMAC/2020/ENU/?guid=GUID-39C75C5A-F2A9-43A6-94C5-AB538BFB2322

[Anonymous]

Region works fine. Select doesn't seem to work.

[maxim_k]

>>>>Select doesn't seem to work
Sorry, did not understand about "Select".

Can you illustrate your problem? Screenshot or share the drawing.

[Anonymous]

Excuse me. Subtract.

I would like to make a hollow form like the one on the left with with some rectangles cut out of the top plane.

Thanks for your help

[Anonymous]

Subtract seems to work for solids, but I would like to create a plane or surface with a "subtraction".

[maxim_k]

Look at the attached drawing.

Is it what you want to get?

[Anonymous]

Thank you for your attention to detail. That is exactly what I'm looking for. I have extruded the model and it seems to work fine.

With that said. I am still unable to replicate the results.

[maxim_k]

>>>>I am still unable to replicate the results.
Do you mean you cannot subtract inner rectangles from the "plate"?
Are you using SUBTRACT command correctly?
When you start command, you need to pick an object from which you want to subtract ("plate" in this case), then you need to hit Return, then AutoCAD asks to select objects you want to subtract - now you select all inner rectangles, then hit Return. Rectangles should be subtracted from "plate".

[Anonymous]

For me, AutoCAD will only say "Select objects" with a dialog in between the first and second return press. (See Photo) I have tried selecting the plate again after the dialogue, with no luck.

[maxim_k · Accepted solution]

You are trying to subtract from Surface object, but I wrote about Region object.

Please look how it works on my side:

I have polylines (closed), then I convert them to Regions with REGION command, then I use SUBTRACT command.

[Anonymous]

Thank you very much! That did it!

I was selecting the regions separately.

Thanks again for making the video, I can tell you have put time into answering my question and it is very appreciated.