moddelazione top down

[kertus]

Good morning.

I need to clarify a concept.

in the modeling of a very large set I decided to work for sub-assiemi that in turn contain assemblies that allow me to organize well see the thing from the point of view of the assembly.

mentally I'm going on trying to design each component individually (not together). Once designed I put it together, then to pair it with other components (with which interface-double) I try to work by applying mathematical relationships (e.g. if I have a frame with passing holes that interfaces on one side with a plate with passing holes and on the other with the ends of a support with passing holes, I try to give coincidence of holes and their size with relationships). This is because I think it makes the model more robust in terms of modifications in phases of prototype (which I can therefore manage well with family tables).

My question is:

working in top down mode together to create the various parts, trying to use the projection command as a sketch to create the corresponding holes coincidences in terms of position and size (to connect to the example above) involves an addiction to what I create from the axieme? Could I reuse the component created in combination mode for other projects by changing dimensions and what else by taking advantage of the family tables without any changes in the axieme in which I created it?

the question arises from the fact that I would like to understand if working with relationships instead of simply with the projection command can have the same advantages (by saving me objectively of time)

Thank you very much

 

[DANI-3D]

in the modeling of a very large set I decided to work for sub-assiemi that in turn contain assemblies that allow me to organize well see the thing from the point of view of the assembly.

Hi.
this goes well, in organizing the project try to follow as much as possible the various phases of the construction of the machine, as then will happen in the workshop. this will be useful for you to easily get the various subaxis and mounting drawings.

for the rest before giving you advice I remind you that in the design work there are two important steps:
phase of study and prototyping where it is essential to have more possible automatisms, made with relationships, parameters etc., so that at every change the project of adegui quickly.
industrialization and construction, in these cases too many automatisms are counterproductive, because during the modifications the project is updated automatically, but risks not knowing what are the designs that have been updated and therefore to be revised and replaced to those already in the hands of the suppliers or in the workshop. probably with the pdm is not so, I never worked on it. If for example the holes are not tied with each other, modifying a piece those of the other pieces do not update and is more evident what are the details that are varied.

When the project is consolidated, I try to remove some references, I leave only the indispensable ones, so in organizing the first phase it is good not to exaggerate, because then it is difficult to make updates and changes, especially at a distance of time.