I recently realized the importance of measurements specifically when it comes to 3D designing, but really in general. I wanted to begin assembling the pieces of my hairdryer on Onshape, but because the measurements I had put for each piece were uneven, I wasn’t able to put them together properly. I had pieces that I had meant to be bigger looking much smaller than the other pieces and vice versa.
I had originally thought that I would be able to minimize and maximize the pieces as needed, which is why I didn’t worry too much about measurements, but it became clear to me just how important they would be. I then decided to take apart the hairdryer again and measure the pieces I wanted to design so that they would be more accurate. I only had a ruler to work with so a few things were somewhat inaccurate, but it was definitely more accurate than before measuring it. Aside from 3D design, the measurements are obviously useful when creating a proper shell for the components necessary to make a hairdryer work. The holes for buttons need to be in the perfect spot to fit the internal pieces and the general shape of the hairdryer has to be measured well enough to fit the components.
Ian, interesting observations about the roll of scale in design. In scaling things up and down, we can unintentionally add in error. So having a clear shared reference point for all of the component of a project is key. Imagine how this might play out in a project that has several teams working on different components?