AutoCAD 2002

[ajl6549]

I have a copy of 2002 on loan from work. I've been using aCAD for about 10 yrs. now, (mostly for making simple dwg's for CAM use), and would like some advice on 3D drawing. Any books etc. I mite read or what ever would help me train myself would be apprieciated

[ger21]

http://www.caddigest.com/subjects/au...torials/3d.htm

If you have questions, just ask.

[ajl6549]

Well I mite have more than a few Q's so I thought I would do a little reading then a lot of practice along with trolling the CNCzone and eventually...? Also I have already done some practicing, but it took a lot of trial and error see the attached.


A.J.L.

[Jarwalcot]

Aj,

I have a copy of Autocad for Dummies (pdf)... I was going to upload it here but the file was to large... If you send me an email address that can handle 11 mb files, I'll loan you a copy...

[ger21]

I wouldn't recommend using the first method you show. Normally 3D drawings (or models) are done with solids or surfaces (meshes in AutoCAD, unless you have 2007). If you want to use it for CAM, it'll have to be solids or surfaces.

[ajl6549]

Originally Posted by ger21 http://www.caddigest.com/subjects/au...torials/3d.htm If you have questions, just ask.

Ok, you see that cyclinder there at the base of the " jaw" ? It's supposed to be a radius tangent to the angled wall and the bottom. How can I do that?

[ger21]

You mean you dont want the cylinder, you want a 1/8" radius?

Use the "Union" command to join your solids into one piece. Then use "Fillet", with a radius of .125 and select the edge. Is this what you mean?

[ajl6549]

Hey thats it exactly! I'll have to try that when I get home. I only have AcadLT here at work. I've seen the union command but it, along with alot more, I don't fully understand. Would I then be able to creat a polar array of the "jaw" so I would have 3 of them?

A.J.L.

[ajl6549]

I tried it with AcadLT 2005 at the command line I typed "union", it says select objects, I then picked both objects and hit enter and it says:

Command:
UNION
Select objects: 1 found
Select objects: 1 found, 2 total
Select objects:
At least two coplanar regions must be selected.


A.J.L.

[ger21]

Union works on both 2D regions and 3D solids. LT doesn't support 3D solids, but it still has the union command.

If you want to do a polar array, you'll need to model the jaw seperately and then array it. Or, you can cut away everything below it, using either "Slice" or "Difference" and a cutting solid, then polar array the jaw and re-model everything below it.

A little planning beforehand can save a lot of aggravation in the long run. After a while, you'll get a better grasp of how to go about things.


Look up all these commands in the help file. They're pretty well explained there.

[ajl6549]

Thanks for the info. As I stated I have Acad 2002 at home so I'll check it when I get there.

A.J.L.