Hi all,
I finished my modeling series at youtube.
If you are interested in modeling for product design this might be interesting.
YouTube Channel:
Enjoy
Claas
congrats on your series,i’m sure it will be useful to many.
Will take a look tonight. Looks indepth - which is good 
let me know what you think.
it is based on modeling for manufacturing and finishing the model in a NURBS application.
So features like surface blends/fillets are missing.
Your stuff is always great
Do you model to final product specs or purely as concepts?
this is a project I did with my students so they can besides surfacing with Alias also learn polygon modeling and how to bring that later as a NURBS model into production, so specs are not the focus of this project. However if you know the dimensions of elements that have to fit in you can block them out and build around them. Plus we did not look into material structure and stability but rather explored modeling as a creative means to think through a design and not be blocked to much by technicality.
Technicality will afterwards always be a roadblock anyway. If you look at Detroit car shows the concept cars are always great visions - the production models are pretty disappointing. But both have to be designed.
Design is design.
I figured that would be your answer
Lately I’ve been looking into modelling stuff with precision specs, and I find Blender a little challenging to use for that purpose. I guess it never was CAD software.
Well precision is not Blenders speciality. You can use the grid, object dimensions, edge lengths, and the scene unite system to be more accurate but it is not able to create a fillet with a chord 5 cm radius etc.
But a common process is to import the objects to model the surface around and as long as the internal components are packaged fine the A surface can be imported into the engineering software to create the B surfaces.
So this is not really an issue - you just need to work well and pay attention to the surface curvature. Too bad Blender does not offer a surface continuity mode - that would be terrific. Rhino 3D allows you to do this when using T-Splines and thats pretty amazing.
So from my experience Blender is a great addition to create surfaces that are too hard with NURBS or to explore concept models as well. But what you do in Blender can seriously used for manufacturing as well. The question is just how well one planes the project.
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