Inside a product, suggestion for modeling

Hello all,
i’m just wondering how to designing in the correct flow a lid.
Trying to explain me as well as possibile, imagine a dslr camera, or any product with a battery inside, also in automotive, imaginating to design the cockpit.
now, all the design of the external part is done, you make thickness of the body and you must cut out the lid and make it lockable
how will be the correct, or faster, or better workflow for do it?
make the cuts, reduce the external dimension of the lid for tolerance matching, and then think about a manner to lock it.
i don’t know if i’m explaining the concept well, but we can found tons of tuts on youtube about external modeling, but inside a product? all that support for screws, circuits, cables at the exact place and with exact dimensions. just looking at a dslr i think about how will be impossibile to design a product like this.

any suggestion on how start thinking about modeling inside a product?

thanks in advance,

Hi Enzo - I guess the process would be to build the interior cavity over sized - so that it protrudes through the object and trim it in or BooelanDifference - then do the same with an offset of the cavity and the inner offset of the camera body. meanwhile the details on the inside of the door itself need to be built - all this is very general and probably useless, it would be easier if you posted a model with the specific case.


Well, just like anyone concerned with production, you simply model the “inside”. These details don’t appear from the heavens ; )

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I don‘t know how cameras are modelled but I can speak for automotive because you have mentioned this. In automotive there is a strict distinction between visible (design related) surfaces and constructive parts.The actual design is only represented by surfaces without any thickness or construction behind. Usually design and constructive parts are modelled in parallel, by different people with different profession, often by different companies even using different cad programs and different quality priorities. There are specialists to overwork design surface to highest visual standarts and even others who evolute these surfaces to actual parts.Not to forget the toolmakers. Most of them are no designer, they are technicians and engineers. (They always work in parallel, so you can imagine that coordination is extremly important)
Design surfaces are usually more difficult to create so you are forced to use direct modelling or at least weak parametric cad software whereas constructive parts are more forgiving but more complex and product management and true parametric features are much more important. So these people usually work with expensive plm systems like catia, nx or creo. So you might find better answers by literature around these software packages. But don‘t forget engineers usually learn much of the theory in university (in theory :wink:) . In the end you can learn alot by trial and error and a big cup of practise. The fastest way of learning is finding a good local mentor.

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Thanks for your illuminating answer, I’m an electronic technician and i’m always on work on PCB and the curiosity to understand productive process of interior design affascinate me a lot.
Learning from zero like in my case, for hobby is cool but after an year of blender, f360, rhino, now i’ve understood the limit of doing design like this. For render purpose it’s all ok, no matter of intersecting body and all inside stuff, but for doing something TRUE is a damn critical thing. Thanks for your answers, it was only a post for talking with someone surely most skilled than me.
Have a nice day