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Anonymous
309 Vistas, 2 Respuestas

3D drawing help

I am trying to draw an I-beam shape on the side of another I-beam and i cannot get the image to stick onto the existing I-beam.  I am new to AutoCAD so there are many things that i do not know but I've used Inventor before and remember that you could insert a plane at the point or face that you wanted and then draw on that and it would appear to be attached to the existing object.  Please get back to me with any help, i have been searching the internet for a day and have not found a way to do that same thing. 

 

Just some background,  i drew the i-beam just using the line command and then extruded it in the 3D model tab,  what i want to do is rotate the view so that i am looking at the side and then draw another ibeam design on the side and extrude that to create a the side of a platform. Any help would be greatly appreciated, like i said i have used Inventor before so i am somewhat familiar with how to draw in 3D but i cannot get the same result in AutoCAD as i would like how i did it in inventor.  Get back to me with your answer, thanks.  ill attach a sketch image of the object i want to draw on the side of so yall have a better idea of what i am talking about.

Kent1Cooper
en respuesta a: Anonymous

What you want is to establish a User Coordinate System whose XY plane "lies on" the surface of the extruded beam you want to draw on.  UCS command, [there are different ways to do it but probably the easiest:] ZAxis option, pick an origin point anywhere on that surface [Osnap to a corner or edge of it], and give it a positive-Z axis direction out toward where you want to be "looking" at that surface from.  PLAN command with current-UCS option, draw the outline on that surface, and EXTRUDE it or PRESSPULL it [the current UCS's Z axis direction is the way it will "aim" with a positive extrusion distance].  You can then take the UCS back to Previous or World, or do another ZAxis option to draw some other beam off a surface of what you just built, etc.

Kent Cooper, AIA
Anonymous
en respuesta a: Kent1Cooper

Thank you Kent! Worked for me, its actually less confusing than what I am used to in Inventor I just had no clue what to do, thanks again.