Most of my career has been spent denying that 2D exists. I (half) jokingly tell customers that I charge triple rate for 2D drawings. Typically, I wind up doing some simple drawings when I hand off part data to a molder. But only big overall dimensions, some special finishes, and tolerances that are out of the ordinary.
Still, the fact that I avoid drawings as much as possible doesn’t mean I don’t know anything. One of my biggest pet peeves about users and CAD developers is that they don’t know the difference between ANSI and ISO. It gets even worse when you start mixing first and third angle projections. I think I many have complained recently that some training I attended set up a drawing with an ISO template, and proceeded to use first angle projections as if there was nothing wrong. That’s like sins-a-CAD-guy-should-never-commit-101. Sure, the guy should have known better, but the CAD developer could also do better.
I know two CAD software products that if you aren’t careful, you can install ISO as the default here in the US. When software is installed, there is all sorts of information available to the the installing application. One of those is what country the software is being installed in. If CAD software is being installed in the US, there’s a pretty good chance that ANSI will be a better choice than ISO. This is one of those things that’s basic drafting class information, and that must drive CAD Admins crazy.
I was just re-installing Solid Edge tonight, and right up front, it does have it there, is the choice for ISO or ANSI, but the default is ISO. This should be easy to fix. I have run into companies in the US that do use ISO, or an ISO-ish standard. I have also run into one company that uses first angle projection because they work primarily with companies from European countries who use that standard. I’ve never seen anyone implement ANSI or ISO 100% to the letter, but the difference between projection methods is subtle yet extremely important. Sending a wrong projection drawing is likely to cost you a lot of money.
What do you think CAD developers could do to help with standards compliance?