Paperless Home Design-Build
I don’t know how many are aware that over the past decade or two the aircraft/auto and some other industries have gone to paperless (no blueprint) designs. The design is built and inspected to 3D datasets, or DMUs(Digital Mock-up Units), some of which, but not all, interface to CAM(Computer Aided Manufacturing), mainly auto-fastening, CNC machining, rapid prototype type operations.
Begs the question when and how the construction industry is going to get on the same page. How much do we really need on a drawing? It started out about 10-15 years ago with only critical 3d tolerances or GD&T (Geometrical Dimension & Tolerances). There is a general 3d model tolerance applied to all geometry “except as noted” . 3D tolerance is quite different than 2d, 3d needs an axis system or tertiary datum defined. It can get quite complex to produce and inspect, although it can be simplified with loser tolerance for construction. The 3D model also contains notes on a readable plane.
Just wondering what some experienced blue print readers thought. Do you need everything defined in 2d on a print. What if a computer station was available at the jobsite and the foreman or lead could provide info, or, what if you were given a power point with 3d pics that defined what you already know after years of doing an reading the same ol, same ol, most of the geometry, that say gave overall dimensions and detailed only what was absolutely necessary.
The aircraft-auto industry has drastically reduced to R&D cost of producing 2d drawing’s to the point it is practically gone, paperless, pushing that cost saving’s into more robust builds.
This advanced rapid prototype version process uses a dimensionless 3d model to build plastic parts, it has been used for decades to produce touchy-feely fast prototypes, now production parts and fast. It has grown fast in aircraft-auto taking down the cost of both R&D and builds. I have some design experience with it on a small part scale, production parts now in service, worked great, but there is size limits on most machines. It has issues with materials too, that is getting resolved quickly with more printer-cnc macnine compatible materials becoming available every year. It won’t be long before fully automated home production lines are up and running somewhere in the world:
GBA Detail Library
A collection of one thousand construction details organized by climate and house part