optimize top down design

[marza10]

Good morning.
I would like to begin a type of top down design, I have been informed these days, but I wanted to explain my method to you because I have doubts and I would like to ask you some delucidations.
1) I open an empty ipt and do a sketch for each component.
2) I carry out the processing of the first component, except the ipt and open a new set.
3) I use the ipt created as the first component and place it in the axieme.
4) for other components in the environment together use creates and then derives, amount the ipt file with all sketches and select only the sketch of the component I am creating. I work on the component I'm creating and I'm going back to the environment together.
5) I repeat point 4 for all components.
6) I put the constraints and conclude the assembling.

Is that the correct procedure? I would also like to be able to create on a single sketch all the assemblies (I come from autocad :d) in order to avoid creating all the sketches and projecting the geometries, I saw that it is possible to create sketch blocks but when the amount loses the quotas and they are completely released, it is possible to use them in this context or have been thought for other needs?
Thank you in advance for the answers!

 

[Tarkus]

forget autocad !!!
I do so, at least in the case of together with max some dozen different parts:
I create all parts in one file making sure each part is a new solid.
in particular I try to create the couplings between one part and another so that at the variations of the one I also vary the other.
e.g.: a coupling between two flanges, one with passing holes, the other threads: I do the sketch for the first holes, and then use concentric hole for the holes of the second flange giving as a concentric reference the holes of the first.
then use: management->creates and derives one or more solid depending on the eigenze, in a new .ipt file, and so on for all the solids I built in the multibody.
to you decide whether to use the option " insert into a new set or not.
I only use it for the first derived solid, for others I almost never use it.
When I finished drifting my solids, I start building the axieme with its constraints.
Keep in mind one thing, : not to weigh too much the multibody file, avoided bevel type machining, fittings, or whatever else is not directly connected to another solid multibody file, as well as mirrored or serialized parts.
the additional processing I do on the various derivative files, the mirrored parts I make it coming further and mirroring the already finished derived file, the idem series...
It seems complicated, but in the end it is easier than expected. .

 

[marza10]

Hello, thank you for the answer!
I have only the external quotas defined by the customer, I rely on those and build the internal execution, but for how the parts of my set are defined, I usually have to choose components according to the space that remains available to me after I have made the most of the sketches / sketches and in 90% of the cases it is necessary to evaluate the execution and change some quotas and for that I prefer to use the 3d parametric that if built well allows you everything with two clicks to update. I didn't understand the multibody speech well, do you mean creating more solids in an ipt? I'm not quite clear, thanks again!

 

[Tarkus]

Hello, thank you for the answer!
................................................................... allows two clicks to update everything. I didn't understand the multibody speech well, do you mean creating more solids in an ipt? I'm not quite clear, thanks again!

Of course I create more solid in an ipt, the multibody serves this, the multibody is there since the 2012 version seems to me.
it is necessary to create a fictitious assembly composed of more solid and then to be able to derive them to pleasure.
in this way you create all your parts in a single file . and you can create them with geometric relationships between them.
with this, nothing forbids you to create them inside a sketch "environment" so you can see with certainty the spaces that it occupies.
However, type "multibody" or "multibody" on the search for the inventor section. There are various discussions about this.. .

 

[marza10]

great looks like what it does to my case, thank you again!

 

[marza10]

I'm sorry if you have the patience to listen to me again, I have something else to ask you:
to avoid creating an extra file, I would like to use the file I use for the multibody as part and derive the other elements through the make part, only that once I place the multibody and the components obviously he sees all the multibody, even if hid the solids still sees them twice, there is a way to avoid this problem or I have to derive all the components and resign me to have an extra file? thanks again for patience and attention!

 

[Tarkus]

You must have the father file with all its derivatives.
an extra file is not then the end of the world,...especially if from that with one shot only controls the others