topic Re: 3d model solid editing in AutoCAD Forum

3d model solid editing

coolkris — Fri, 27 Aug 2021 05:16:57 GMT

Dear all,

Help needed in 3d editing interference of 3d solid parapet walls as attached in image and cad files.

Thanks

Krish

Re: 3d model solid editing

Valentin_CAD — Fri, 27 Aug 2021 11:00:34 GMT

@coolkris ,

Use SUBTRACT to remove portion of one of the parapet. However, removing this portion will make the travel lane much narrower. The best option is to rotate the single lane 3D object to avoid intersecting.

Reconsider redesigning.

Re: 3d model solid editing

coolkris — Fri, 27 Aug 2021 11:39:27 GMT

thanks for suggestion. But this entrance ramp joining carriage way. So I need to trim both walls to make transition smooth. Can you please make screen shot of 2 steps to subtract. I am getting different results as attached.

Thanks

Krish

Re: 3d model solid editing

Valentin_CAD — Fri, 27 Aug 2021 12:53:36 GMT

@coolkris ,

I rotated the instead of subtracting. If you SUBTRACT, your results will not be smooth because of the elevation difference. You will have to determine where to begin/end the transition, so when they meet it is smooth.

Re: 3d model solid editing

Kent1Cooper — Fri, 27 Aug 2021 13:02:10 GMT

Look into the SLICE command.

Re: 3d model solid editing

coolkris — Fri, 27 Aug 2021 14:03:46 GMT

thanks for the reply It worked one side what about other side parapet wall to be trimmed without cutting deck slab.

Please find attached

Thanks

Krish

Re: 3d model solid editing

Valentin_CAD — Fri, 27 Aug 2021 14:44:20 GMT

@coolkris ,

Before slicing any objects, copy the 3D model to keep as original. Then slice each side (like you did on the first one) from a copy and put it together. However, this will give you an open section which you will need to fill (consider the LOFT command for that area) and make a solid.

Re: 3d model solid editing

Kent1Cooper — Fri, 27 Aug 2021 15:57:19 GMT

For this result:

I drew Lines [yellow] along straight edges through the intersection point:

Flattened them down onto the XY plane and established the bisector angle between them [green]:

Extruded that up into a Surface:

And used corners of that in 3-point mode to SLICE each part, keeping the appropriate side in each Slice.

The road surfaces don't align exactly, but that's a different issue....

Re: 3d model solid editing

vinodkl — Fri, 27 Aug 2021 17:41:44 GMT

Hi @coolkris

You can first use the command "INTERSECT" on both the solid to a final object something like this:

You can then copy this and paste it into a new drawing using the command "PASTEORIG". Now return back to your old drawing and undo(ctrl+z) the changes made by intersect command. Slice the parapet wall from both side and it will look like this.

Now copy the intersected portion from the new drawing and paste it into the old drawing using the command "PASTEORIG" which would look like this.

Now you can use the UNION command to combine all.

Re: 3d model solid editing

coolkris — Sat, 28 Aug 2021 02:45:20 GMT

Thanks a lot to all, this option seems to be the best.

Thanks