mechanical engineering drafting/CAD, i need help!?
well im trying to help my hubby with an essay for him drafting/CAD Methods class..
it says; Prepare a brief report on the benefits of using a computer-aided drafting system.
then it gives me choices to focous on-- we chose mechanical engineering drafting..
then it says to discuss time savings, library creation for repeated block insertion, drawing correction and modification, software customization, drawing sharing, and electronic file transfer.
i dont know what any of those discussion topics means! i got time savings down, but the rest are like another language to me and i cant find anything online..
please help
anyone?
thanks
Hey Ladybug,
I've been doing CAD for awhile, and I'm familiar with some people who used to do it the old fashioned way. I guess I'll walk through these steps:
Time savings - Let's get back to this, this is a benefit because of some of these features that CAD offers.
Library creation - With CAD, you can save parts that you've made and use them over and over. Many CAD programs come with standard part libraries. So if you want to add a drawing of a particular screw, for instance, that screw can be looked up in the library and easily added. Some libraries include nuts, screws, washers, fasteners, electrical components... many kinds of often used standard parts. This saves time because you don't have to draw the parts out each time you use them, where you used to have to do that with manual drawings. It also reduces errors in drawings as well.
Drawing correction - Drawing correction and modification would be automated features in CAD software that automatically fix or alert the user to many kinds of common errors in drawings. They may draw angles that can't be machined, or make a part that has an undercut that can't be molded, or create impossible geometries. Visual representation as well as correction algorithms fix problems that may not have been caught in manual drawings. This saves time and increases productivity; however, the user still must be careful to make drawings accurate.
Software customization - I believe this refers to the ability of most CAD software packages to customize the user interface. This allows the user to have access to the features he uses most while disregarding little-used commands. Some people who do particular kinds of drafting, like with sheet metal for instance, may use commands that other people designing plastic parts would not. The ability to customize the interface allows users to quickly produce the drawings they need.
Drawing sharing - One of the most important features of CAD is the ability to electronically share your drawings. This allows designers and manufacturers to work much more efficiently because the data is transferred accurately. With version control software, newer drawings can replace older ones and make sure that all the drawings are up to date.
Electronic file transfer - This just means that the drawings can be emailed back and forth as electronic data files instead of bulky paper documents. It's more concise. It really falls under the last benefit.
As you can see, creating a 3D drawing and model of something on the computer has many advantages over doing it over and over again by hand.
Marine Specialised Technology - MST Ltd
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