Extend command doesn't work (AutoCAD 2019)

[peter.samiotakis]

Hi!

I try to using the Extend command, extend the four lower edges using Stretch and Merge options by 15 units but I can't select the four lower edges. How can I solve that?

[tramber]

Looks like you are dealing with a solid.

The bottom face (a is guess) has to be offset with that kind of command : 

From the solid edition tools panel

[imadHabash]

Hi,

As noticed in your attached image the command line waiting you for selecting ( Select surface edges to extend: ) .. now you can start select more than one edge . 

[peter.samiotakis]

Unfortunately it doesn't work!

[peter.samiotakis]

I can't select the lower edges!

[imadHabash]

Is that what you're asking for ...  Click on below image . 

[peter.samiotakis]

Doesn't work

[peter.samiotakis]

I send the file Övning 14 Inte klar.dwg

[imadHabash]

You may need to select a surface not edges .. >> Click << 

[tramber]

Busy today !

My friends gonna tell you what to do between solids and surfaces, there are ways 😉

[j.palmeL29YX]

The polyline(s) and the surface(s) should be on different layers. Don't put all objects on the same layer. 

Now you can disable (or freeze) the the polyline's layer before running the surfextend command. 

[j.palmeL29YX · Accepted solution]

... or the Selection Cycling can be used as shown in >>this video>>. 

(SELECTIONCYCLING = ON,  CULLINGOBJ must be OFF)

[peter.samiotakis]

Thanks 🙏
It works!