USC and Drawing Planes Explained

[kcol-kkc]

I am verse in AutoCAD 2D. Quite verse.  30 years verse.  Been teaching myself AutoCAD 3D.  My sticky point is the UCS and the Drawing Plane.  I cannot for the life of me get a grasp on it.  Now I'm self teaching myself Fusion 360 as well and maybe that has tainted my perspective.  I realize the two are vastly different.  But Fusion makes total sense and AutoCAD does not.  I'm not afraid of learning or self teaching what I need to know. So if anyone has links to documents or videos that best explain the concept and how to apply to that modeling I would greatly appreciate it. 

Thanks

Kevin

[pendean · Accepted solution]

Fusion360: modern tool for modern times.

AutoCAD: old tool still stuck in the old ways-
https://www.youtube.com/watch?v=jpN5YgAsS6g
https://www.youtube.com/watch?v=ZN6Oa_7KleM

https://www.engineering.com/story/understanding-coordinates-for-easier-navigation-in-autocad-3d
https://gtu.ge/Arch/Faculty/Multimedia/Acad_11/14control_workplane0/control_workplane.pdf
https://www.mycadsite.com/tutorials/level_3/ucs-3d-dynamic-setting-wcs-autocad-3d-3-12.html

[dany_rochefort]

@kcol-kkc  Here is the very basic idea, everything UCS operations build off of this... 

Wherever you UCS is located is always 0,0,0 coordinate (X,Y,Z coordinates) in 3d space. 

2D objects are drawn in 2d space, which is normally XY plane.

You can Move your UCS anywhere in 3D space

You can also Manipulate your UCS on either X,Y,Z axis'  (flipping it around without actually moving it)

I draw a 3D cube in space (this cube will never move for explanation purposes). 

When you draw a 2d circle on a corner of this cube,  the 2d circle will appear on the XY plane which your UCS is set. 

If you manipulate the UCS, while leaving it at the same location, draw a 2D circle again and see how it appears now.  It again appears on the XY plane, but now 3d rotated cause you manipulated your UCS. 

Same thing here, 3 options exists for a 2d circle to be inserted in 3D space by simply manipulating your UCS.  

You can also Move your UCS anywhere you want... And the location will always be 0,0,0.

  Start by practicing moving and manipulating your UCS in 3d space such as this example. The command for that is UCS.  Use the ID command to see how the drawing coordinates move around when you move or manipulate your UCS.... Once you are confortable with that concept, everything else UCS related will fall into place w more practice. 

[kcol-kkc]

Thanks Dany this really clarifies the concept.  Like you said I'll have to practice at in order to get my head around applying it.  Thanks again.