Describe the advantages, compare to other methods, of producing drawings electronically using a CAD package?

Question

Auto CAD design & drawing software

Answer 1

Using a 2D CAD package like AutoCAD provides a number of advantages when compared to producing paper drawings on a drawing board.



CAD drawings can be easily edited.

CAD drawings can be copied and used to create new drawings.

CAD drawing files can be emailed in seconds rather than being sent in the post.

A library of drawing blocks can be inserted into drawings speeding up the process

etc, etc.



However you gain the largest advantage if you start to use 3D CAD software as it allows you to capture the 3D geometry of a part which can then be used to generate the required projection views on a 2D drawing. The 3D models can also be used to perform a many of other tasks such as interference analysis, CFD & Finite Element Analysis.

3D data can be used to produce 3D rapid prototype models & photorealistic renderings. The 3D files can be imported into CAM software and used to generate programs for controlling CNC machines to produce machined parts.



Here is an example of a 3D CAD packages.

http://download.ptc.com/products/proengineer/wildfire5/interactive-tour/en/index.html





This video shows structural FEA on 3D CAD models

http://www.youtube.com/watch?v=geUCvKayhHE





Here is an example of CFD in use.

http://www.youtube.com/watch?v=1SpOnitUTGc





Here are some examples of rendered 3D CAD models

http://bunkspeed.com/gallery/

http://www.youtube.com/watch?v=NLOT7g_4H4c&feature=related

Answer 2

Let's see... 1. Fire all women teachers considering the Bible says that women shall not teach over a man. 2. Make the Bible the ONLY textbook allowed. 3. Stone sinners. This means anyone who lies, steals, commits adultery(which, biblically speaking, means so much as being with the opposite sex unchaperoned), worships graven images(this means no more drooling over sexy Hollywood stars and the like), covets(so if you want something someone else has, you're done), etc. 4. Tear down our schools and replace them with churches so instead of going to school everyday to learn, you go to church.(Eh, I suppose this sort of goes with #3) 5. Serving biblically approved lunches(no more pork chops and ham sandwiches as pork is forbidden in the Bible) 6. Post the 10 Commandments in the hallways(although I've heard some schools actually try to get away with this) 7. Where there were once pictures of US Presidents, put only a picture of Christ. 8. During Lent, make fasting a requirement so goodbye snacktime(for younger kids) and lunches. 9. Instead of school counselors, make the kids go to confession. 10. For celebrating holidays, make them ONLY celebrate religious ones and ONLY the religious aspects. Halloween? Buh-bye. Thanksgiving? A day of prayer. Christmas? Sayonara Santa and presents. Have a Nativity pageant. Easter? No more eggs and bunnies, you get a recreation of the Passion. 11. Require daily prayers or recitation of things such as the Lord's Prayer. 12. Instead of teachers, give them priests/ministers/etc. 13. Field trips are to monasteries, places of religious significance, instead of to someplace fun. 14. Separate boys and girls classes, make the girls wear long hair and wear dresses or "modest" clothing. No makeup, no jewelry...unless it's a crucifix or something religious, of course. 15. Homework involves essays as to why other religions are going to hell and the only things worse than another faith is no faith at all, or on how a person can end up in hell or how they can avoid it, etc. 16. Before meals, everyone must say grace/table prayers, and those who don't pray, don't eat. Honestly, I could probably keep going all day if I tried...

Answer 3

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