how to change dimensions after extrusion

[Anonymous]

Hi, 

I have sketched a rectangle and then extruded it. 

Can I change its dimensions after extrusion ?

Thanks for reading me. 

Johanna. 

[AlStormPrime]

Yes, you can.

If you have a 'design history' enabled (by default it is) you should have your sketch and extrusion feature in line at the bottom of the screen. Right click on the sketch or extrude feature and you will see the 'edit option'.

In this way you kinda 'go back' in time and make changes there.

Also, you might find youtube video guides on this topic quite useful and intuitive

[Anonymous]

Hi, thanks for replying. 

Is it possible to consider the 3D rectangle as a new and independent form and then to change its dimensions without going back to the original sketching ? 

I wish I could use a tool as "edit form" but in the model menu. 

[AlStormPrime]

What are the dimension you need to change - the length of the sides / depth of extrusion. Or is it something else?

If there is an target picture or drawing, that might be handy.

This video shows an example of how to use Sculpt with a Model - https://forums.autodesk.com/t5/fusion-360-design-validate/how-do-i-use-sculpt-with-a-model/m-p/65119...

But I am not sure if I got your objectives right

[Anonymous]

I 'd like to change the length of several rectangles and be sure that they are aligned. 

An other question : I will need to do rectangles which will be on the top of an other rectangle. What would be the fastest way to do it ?

Thanks a lot.  

[TrippyLighting]

@Anonymous I think you need to spend some time - say 2-3  hours - and go through a number the introductory tutorial videos in the Support and Learning section. It will answer some questions, but not all and you certainly will have more questions afterward.

However, you'll have more of a foundation to base your questions on.

In general, you already showing 4 or more yellow warning icons in the timeline in your screenshot indicating that something went wrong. Not fixing these warnings is not a good idea.

[etfrench]

This thread shows how to make something similar, however, do as @TrippyLighting says and spend some time on the learning videos and tutorials.

[HughesTooling · Accepted solution]

@Anonymous Looking at the timeline with all those moves, aligns and scales I say you've jumped in the deep end before you can swim. I think you're using ideas from other cad systems that really don't work for history based cad.

As suggested above go through the introductory videos and also do some of the hands on tutorials in the help on sketching. I notice you have several forms in the timeline as well, for what it looks like you're trying to make forms are not your best bet, a lot easier to build using sketches.

Mark