SOLIDWORKS - Top Down Assembly Modeling
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- Опубликовано: 29 сен 2024
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Learn about one approach to making assemblies. Here we make part files in the assembly in a top down approach in SOLIDWORKS. Quick Tip presented by Tyler Young of GoEngineer.
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You said that virtual parts have brackets around it, like the second part you made. How can I save it in it's own part file so that it exists separately from the assembly.
Hi Zoe,
If you were to right mouse click on the virtual component you could then use the command called "Save Part (in external file)" to save that virtual component into its own file.
Excellent video. I've been trying to figure out how to do this rather than "bottom up" design. Thanks.
Explained something in 4 minutes that someone else explains in 40 mins 😄
Fundamental in helping me grasp something for my first Solidworks job; producing some "as built" model drawings. Major/primary parts first, separately drawn and then assembled - then the minor pieces come together from key references/datums established by these.
Thanks for the Video. I've got a couple of questions though.
I recently learned to work with Creo Parametric, and was surprised to learn that we shouldn't use external references AT ALL. I had to re-learn CAD-design (I'm relatively new in the profession). That means we had to make reference planes, point and axes in relation to the origin in the top assembly and place components in relation to those references to achieve a stable assembly file. Is this advised when working in SolidWorks aswell, or is that depending on what company you work for?
When creating a part in an assembly, you select a face or plane. What is it that you place? Is it the top plane of the part? Is there a more strategic place to put the part? E.g. coincident with the top plane in the top assembly file.
Top down design, or creating inter part relationships, is a very powerful tool when used properly.
It is usually a corporate decision whether to allow it or not based on distribution of work and how many people get their hands on the same data. It can be difficult for an unfamiliar user to understand the associativity created by the original designer.
That said… When you insert a new part into an assembly and are prompted to select a flat face or plane… You are placing the front plane Of the new part coincident with your selection.
If you want to align the planes with the planes of the assembly, click the name of the assembly when prompted to insert the part, or simply click OK and it will default to aligning the front top and right planes of the new part coincident with your assembly planes.
I personally prefer meeting parts to each other… Or more specifically mating features to each other… So when one part changes, the other parts position will react to that change.
The other method called working in body position is done by having all of the planes mated to a single origin and the parts built out in space relative to that point. This is easy for placing parts because assembly is simply about aligning the planes and origins… But when geometry changes, A bolt going ‘through’ a hole would not be aware that that hole is moved in this method.
In SolidWorks, a bolt made it to that hole would move if the hole placement moved.
Check out our videos on top down design and it will help you understand a little more of the nuance of the process.
nice video thanks
I am designing an RC airplane can you please tell me how to assemble electronic components
This really helped clearing up my concepts! Thanks.
Glad it helped!
Good video. I'm wondering how to move the lid up and down now as a 'mate' function
Excellent video. I appreciate you explaining some of the vocabulary and reasoning behind things at the end.
Glad you enjoyed it! Be sure to subscribe for more great 3D CAD Design and 3D printing tutorials.
Is there a difference between creating the first part of the assembly within an empty assembly environment and modelling within the part environment and then insert the first part??
Hi Raymond,
The only difference that comes to mind is that creating the part within the assembly directly first makes that part as a virtual component (it doesn't have its own external file). Otherwise, both methods would put the initial part into the same location with the same orientation so modeling the part through either method would tend to yield the same result.
lets say i want the lid to be able to move around (say about some axis). if i use this method, every time i move the lid it will rebuild and change size. but i still want to model it top-down in order to have a link between the box size and the lid size. could you do a video about how to solve this?
Hi Tom,
The sorts of in-context relationships that you would create to have this kind of behavior are described in this video (ruclips.net/video/FFDvDWJ304A/видео.html ). This video shows how to create a part that changes geometry based off the movements of another.
hiii........I am unable to add part to assembly In solidwork 16
Hi Ritu,
I am not able to determine why you would not be able to add a part to an assembly if you are using the method outlined in this video. If you need technical support I would encourage you to contact your local supporting SOLIDWORKS VAR (www.solidworks.com/sw/varlocator.htm ) so they could help to diagnose the behavior you are seeing.
virtual part?