You can set the UCS origin and its X, Y, and Z axes to suit your needs.

The UCS is useful in 2D design and essential in 3D design because it controls features that include.

Display options for the UCS icon are available with the UCSICON command.

The UCS is useful for entering coordinates, creating 3D objects on 2D work planes, and rotating objects in 3D.

Although you can enter 3D coordinates in paper space, you cannot use 3D viewing commands such as PLAN and VPOINT.

Internally, all objects are defined by their WCS coordinates, and the WCS and the UCS are coincident in a new drawing.

For instance, if I want to know the location of the bottom of structure when I route my duct.

It would be nice if theres a program out there where I could just click the point and it shows me what I need to know.

I just want to pick a point and know the elevation (or XYZ coordinate, doesnt matter, same thing) of any point in space.

I haaaaaate asking this, but how hard is it to show in Architectural Feet Inches instead of just decimal inches But thats exactly what I need.

Its really amazing how a simple program such as this becomes almost invaluable.

At least when Im not counting my money or investing it in Bently.

Ive been using it since r14 (started in 2000 at the age of 18 ) and I know rk has several years on me.

What I need to do is get into another company with one or more people FAR superior to my knowledge so I can milk their brains all day every day.

The last engineering firm I worked for, there was one guy I shared an office with that didnt know anything about programming, but knew cad inside and out (been at it since DOS days).

You wouldnt believe the cad-boobs I work with now, but Im not complaining.

Autocad For Mac Show Coordinates