Iam a student doing mechanical engg I want some advice in choosing a designing software to learn it would be verrry useful if u guzs would help me to figure this .....so plz tell me which software should learn to use .....

One suggestion would be to start to have experience with Auto CAD 3D.
You find many difficulties in modeling because it is very artisanal its modeling.
This will help you create a lot of maturity.
Next would be an average Software Solid Works and Inventor.
Come a time that you even had missed something more al then go to the NX and Creo after.
Hope this helps.
hugs
Professor Cleiton Rogério de Abreu
Brazilian with Pride.

I am Mecatronico engineer and tool designer.
You know here in Brazil we have to know a little of everything.
More every engineer should have the obligation to know calculate and sketch using calculator and ruler.
As we are in a modern world CAD tools / CAM and CAE are fundamental.
Try to learn an engineering simulation program a cosmos as initial and then the pro mechanica.
Soon a machining tool.

I hope I have helped you

hugs

Professor Cleiton Rogério de Abreu
Proud to be Brazilian

Most of the industry are migrating form Catia to NX but most of the supplier are using Catia and NX both like Borgwarner, Johnson Controls, Mind Industry, JBM etc
1. ChryslerAutomotive-NX
2. Mercedes-NX
3.Maruti Suzuki-NX
4.Renault Nissan- Catia and UG both
5. General Motors-NX
6. Piaggio-NX
7.Ashok Leyland-Pro/E
8. Boeing is going to migrate from Catia to UG
9. Ford-Catia
10.BMW-Catia
11. Rolls Royce- Pro/E
etc. but I will recommend first you should learn NX then after you should learn Catia

Personally, I believe it must be said that unless you can find a reasonable licensing scheme for your educational usage, you won't even be able to afford anything akin to an ideal answer to your question. Moreover, file interchangeability issues make it impractical to move from your original decision, should you discover somewhere downstream, that it may have been more advisable to make some other choice. In any case, the typical student is probably out of spare money by then.

Nonetheless, your question is inevitable for all of us, and does deserve careful reflection.

You will probably find freeware or cheap wares to be disastrously dysfunctional. But it won't hurt you to get your feet wet with an application such as FreeCAD — the operational principles of which are at least very similar to professional applications such as SolidWorks.

Most of us would prefer to be careful about denigrating free and inexpensive applications, but the truth is, that from their inception, CAD wares have inherently imposed such extreme difficulties in computer functions such as 3D rendering of complex assemblies, that it isn't reasonable to expect much from less costly wares. The truth is also, that more expensive licenses will not necessarily solve the same problems.

You may ask about functional reliability. But you probably will not get good answers. Less intricate or complex parts impose the lightest duties. The only significant tests or reports of reliability relate therefore to much heavier assemblies. I've worked for week upon week for months without crashing SolidWorks on relatively simple parts. I'm not sure we could even make these parts on FreeCAD. But I've crashed SolidWorks more than a hundred times in a day (many times), working on two machines that have something like 2,500 and over 3,000 parts respectively. While those alarming experiences have substantially stabilized recently, a person has to wonder whether it might be advisable to build the most resilient system possible — only hoping to reduce or eliminate preclusive reliability issues, which are likely to relate instead to faulty software algrorithms. As I believe my machine ought to handle the duties I impose upon it, I'm reluctant to take the risks of "upgrading" unnecessarily. But be advised that your hardware is critical; and for good recommendations, see only the most qualified pages, which produce the most comprehensive benchmarks for your chosen wares. For SolidWorks, my own recent research crossed pages which recommended 20-core Intel i9 as the processor. Your motherboard should probably support the greatest possible quantities of the fastest memory available.

Several considerations are indispensable to your search. Get your feet wet with freeware like FreeCAD. You may never use it again after just a few weeks. But the two or three weeks you may fiddle with it will at least give you an idea how CAD wares have to work.

Once you are ready to move on, there are several things you should consider.

As you are a student, you may or may not yet have a good idea of whatever fields you may intend to specialize in. You must consider however, whether the wares you might eventually choose will serve all of the fields you may eventually intend to engage, because your disposition is at least to engage one of them.

If such a decision is extremely remote on the other hand, realize that you can only make an initial decision on the remaining criteria... and that you will have to live with that. You might have to purchase more specialized wares when your field is better decided, if so required. But do not despair over the superfluous cost if the more immediate demands of your education force you to make a decision which is not ideal, because ultimately your eventual employer will more often be saddled with the responsibility of site licenses, because of compatibility issues, preferred styles of working, and so forth. Make the decision for your own needs then, because you only need something you can and will use into the foreseeable future, for the foreseeable purposes of that future.

A further concern is the user base. A vast user base will be evident online, in the form of ready, prolific availability of quality answers and tutorials for literally every issue you may need to conquer. A further consequence of the user base that you will rely upon, is the availability of models it may provide for you. If your career ultimately requires 740 bearing models, you ought to do the math of what it will cost you to develop those models yourself, as opposed to readily finding and downloading models which fully satisfy your objects.

A critical concern is the learning curve. Online tutorials will make it obvious how difficult or undifficult it may be to master the wares of your narrowed list.

A strong influence in your decision should be the decisive choice of professionals in your eventual field. Join a few forums and ask them what they think you should use. You might well not be able to afford their ideals. So submit your question in two parts... asking first for the most fundamentally useful and affordable wares.

I would resist advice which casually proposes you might drift thru the available market from ware to ware, until you find the application that truly fulfills your ideals. That course will inevitably orphan many projects to the too-often restrictive capacities of given wares to digest the file structures of other wares. You never want to be forced to rebuild all your previous projects, merely that they can coexist as you intended in what is no more than an unnecessarily different environment.

It might be "nice" if we could find some expert who could ask us no more than what we needed to accomplish with the software, who would immediately spit out the one reasonable answer for the related requisites.

I would say that if it is mechanical and three-dimensional (which it is), you probably can't miss with SolidWorks. Many professionals seem to prefer it, regardless of the field they are working in The user base is phenomenally conducive. Numerous YouTube channels pave the way to conquer any direction your career might ever take you. Price may be an issue.

I would get your feet wet for free first.

Yes, those first few weeks in FreeCAD will have to be disposable. But there's hardly a sophisticated CAD guru in history who wouldn't want to do their first few weeks of work over again, rather than use it. We soon develop more efficient and reliable methods for generating features, subject to the strong and weak points of our chosen wares. Faults are not truly permissible. But they are likely everywhere. If practical, choose a course you have good reason to believe will avoid them. As that advice may not be practical, choose a user base that may be more influential upon the vendor, and make reasonable complaints heard.