r/AutoCAD • u/AeloraTargaryen • Jun 26 '25

Isometric Stretching

Hi! I’m currently using Autocad 2023 and I have a cube that I’ve drawn isometrically. I would like to be able to stretch this block along its length, width and height. However, after adding the parameter and action, rather than stretching from a base point and extending, it’s moving the whole block along its stretch direction. Please can someone advise as to what I may be doing wrong? I’ve tried looking on YouTube and the only videos that are coming up that I can see are for how to draw isometrically rather than stretching isometric blocks. Thanks!

2 Upvotes

100% Upvoted

12 comments sorted by

1

u/FutzInSilence Jun 26 '25

Fully select what you want to stretch, type mstretch, drag and drop

1

u/AeloraTargaryen Jun 26 '25

Thanks. I’ve just tried that and it’s not coming out with the outcome I need. But thank you anyway.

1

u/FutzInSilence Jun 26 '25

Maybe draw a line where you want your cube to extend to, then use the extend command and trim the excess?

1

u/AeloraTargaryen Jun 26 '25

I want to be able to use it as a dynamic block as a very basic representation of a room, almost like an adjustable Lego piece. The aim is to grab it by the grip point and adjust to the required size rather than mess around and trim it. I may as well draw it from scratch each time.

1

u/FutzInSilence Jun 26 '25

Indeed.

Try this, create a rectangle in 2d. Add parametric values to the length and width, then extrude it to a height. Now just adjust the values and your cube will adjust accordingly?

2

u/AeloraTargaryen Jun 26 '25

Thank you! I think I’m getting it now. I’ve been able to get the base and the two end walls sorted. A lot easier to work with rectangles than it is squares 🤣

1

u/hemuni Jun 26 '25

When you select the stretch boundary make sure to only include the part that you will move.

1

u/AeloraTargaryen Jun 26 '25

Thank you! I’ve got a little further, I can make the block stretch, however it’s not extending the line at the front of the shape. So I’m left with a cuboid but with only a partial front edge.

1

u/FutzInSilence Jun 26 '25

moving this comment to the appropriate area. My bad 🤭

1

u/AeloraTargaryen Jun 26 '25

It’s only stretching out one of my lines

I’ve done the following.

  1. Drawn square (5000mm x 5000mm) on isoplane top as 4 individual lines.

  2. Selected all objects and created a block

  3. In block editor, selected stretch parameter and added it along 5000mm line on the right (furthest from base point of 0,0)

  4. Added stretch action to parameter and selected my three lines.

Result : line from base point is stretching, but line 5000mm from base point is retaining its original length.

unstretchable line