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autocad 3d draw on z axis

Topics covered in this Lesson:

Setting and Using the UCS | Dynamic UCS

When working in 3D, it sometimes necessary to change the plane that y'all are drawing on. For example, if you need to add some detail to the side of a wall, you would desire to describe on that plane. It'due south like taking a canvas of newspaper up off the floor (WCS) and taping it onto the wall (UCS).

The WCS is the Globe Co-ordinate Organization. This is the way that the default X,Y and Z axes are directed when y'all brainstorm a new cartoon (X to the right, Y pointing up and Z pointing towards you). The UCS is the User Co-ordinate System. This is a 'redirection' of the WCS based on parameters set past the AutoCAD user.

There are several ways of doing this, and we'll look at an example here.

The WCS - World Co-ordinate System

This is a simple shape drawn on the WCS with ane corner located at 0,0,0.

Hither is the same object shown a new UCS based on the side of the object, then that you are able to draw on the side of the building - perchance to put a door in? Annotation the direction that the X and Y axes are at present pointing.

UCS - The User Coordinate System in AutoCAD

Notice that the positive X Centrality is at present pointing along side of the structure.

Here's how it was changed:

First get-go the UCS command. You first choose the three indicate option by typing 3 at the prompt. Next you have to pick three points to ascertain the plane. The get-go point is the new origin. The 2nd betoken is where you want the positive X-axis to be positioned. The terminal point is for the positive Y-Axis.

Command: UCS
Current ucs proper noun: *NO NAME*
Enter an pick [New/Move/orthoGraphic/Prev/Restore/Save/Del/Utilize/?/Earth]
<World>: 3
Specify new origin point <0,0,0>: <P1>
Specify signal on positive portion of Ten-axis <1.0000,7.0000,0.0000>: <P2>
Specify point on positive-Y portion of the UCS XY aeroplane
<ane.0000,7.0000,0.0000>: <P3>

UCS - The User Coordinate System in AutoCAD

This is the '3-Point' option of the UCS Command. Information technology is one of the most useful, because you lot control exactly where the new drawing plane will exist. You must likewise exist extremely careful when picking the iii points, or your plane can exist shifted and cause some major problems. I would recommend using this method for most of your UCS piece of work - or at least get very comfy with it before moving on to other methods. Make sure y'all are using Osnaps to select your points accurately.

Note: Pressing enter immediately later entering the UCS command accepts the default of returning to the WCS.

Here are examples of the other options of the UCS command.

ORIGIN: This choice moves the UCS based on a newly picked origin indicate. It does non shift the drawing plane at all every bit yous only pick one point.

ORIGIN:

Control: UCS
Origin/ZAxis/3point/OBject/View/X/Y/Z/
Prev/Restore/Salve/Del/?/<Earth>: O
Origin indicate <0,0,0>: <PICK A Point>

Z-Axis: This selection allows y'all to option two points to define the direction of the Z-centrality. First you choice the new origin, then y'all choice a indicate for the positive Z-Axis.

Command: UCS
Origin/ZAxis/3point/OBject/View/X/Y/Z/
Prev/Restore/Save/Del/?/<World>: ZA
Origin betoken <0,0,0>: <PICK A Point>
Point on positive portion of Z-centrality <-viii.0000,0.0000,one.0000>: <PICK A Betoken>

OBJECT: Using this method, you accept to selection on a second object that is lying on a particular drawing plane. This gets tricky, every bit y'all take to be aware how your positive X and Y axes end upwards. You as well need to know how the object was fatigued originally as this defines its plane.

Control: UCS
Origin/ZAxis/3point/OBject/View/X/Y/Z/Prev/Restore/
Save/Del/?/<World>: OB
Select object to align UCS: <SELECT AN OBJECT>

VIEW: By choosing the view option, AutoCAD will automatically reset the UCS to be aligned with your electric current view, keeping the origin where it was previously located.

Command: UCS
Origin/ZAxis/3point/OBject/View/X/Y/Z/Prev/Restore/
Save/Del/?/<World>: V

X / Y / Z: Past selecting either the X, Y or Z options, you need to first pick a indicate along the axis y'all accept chosen, then provide a rotation angle based on the correct hand rule mentioned earlier. This example shows how you would rotate the UCS -ninety around the positive X axis.

Control: UCS
Origin/ZAxis/3point/OBject/View/X/Y/Z/Prev/Restore/
Relieve/Del/?/<World>: X
Rotation bending about X axis <0>: -90

PREVIOUS: This option returns you to the last setting you had for the UCS. You'll utilize this ane a lot in 3D. Yous might need to change your UCS to depict one object, so go back to what you had it set at before.

Command: UCS
Origin/ZAxis/3point/OBject/View/10/Y/Z/Prev/Restore/
Save/Del/?/<Earth>: P

Restore/Salvage/Del/?/: The next options are used in conjunction with each other. Yous have the option of saving a item UCS with a name. You lot can then restore that named UCS or delete if you no longer volition be using it. Here are examples of these options:

Command:UCS
Origin/ZAxis/3point/OBject/View/X/Y/Z/Prev/Restore/
Salve/Del/?/<World>: S (Save a UCS Setting)
?/Desired UCS name: VIEW1

Command:UCS
Origin/ZAxis/3point/OBject/View/Ten/Y/Z/Prev/Restore/
Salvage/Del/?/<World>: R (Restore a UCS setting)
?/Name of UCS to restore: VIEW1

Command: UCS
Origin/ZAxis/3point/OBject/View/X/Y/Z/Prev/Restore/
Salvage/Del/?/<World>: ? (Listing your UCS settings)
UCS name(s) to list <*>:
Current UCS: VIEW1
Saved coordinate systems:
VIEW1
Origin = <0.0000,0.0000,0.0000>, X Axis = <ane.0000,0.0000,0.0000>
Y Axis = <0.0000,1.0000,0.0000>, Z Axis = <0.0000,0.0000,i.0000>
Origin/ZAxis/3point/OBject/View/X/Y/Z/Prev/Restore/
Save/Del/?/<World>: D
UCS proper noun(s) to delete <none>: VIEW1
Deleted 1 UCS name.

This was a series where a view named VIEW1 was saved, restored, listed, and so deleted.

DYNAMIC UCS
Another pick to try is using Dynamic UCS, but I don't recommend this technique for new users. Here it is anyway. Down on the condition bar, you have an icon that turns this setting on or off. Yous can also toggle this on and off with the F6 central.

Dynamic UCS Icon

With Dynamic UCS turned on, you tin can easily draw on any surface you want. If you have a drawing similar the bones building shown at the top of the page, y'all tin draw a rectangle or box on the roof without manually setting a new UCS. The key is to look and see which face is highlighted as you move your cursor on the screen.

In the images beneath, you can see how this works. The left side shows the 'roof' face is highlighted and the cursor has inverse to reflect the new UCS. The right shows how this looks when the right side face is active. Not the change in the colored cursor while the UCS Icon remains the same.

Dynamic UCS Example

Other notes almost the UCS:

Be conscientious when choosing a UCS. Await to the UCS icon and see that it is aligned the way yous want it to be. Look for a clean vertical lines if it should be aligned along a vertical plane. Nigh of the time I will use the 3 Bespeak UCS option and so Previous to render then back to a unlike 3 indicate option and so on. three Point gives me a lot of versatility without having to think most it also much (and concentrate on how I'm going to draw the projection.

Always exist enlightened of where your UCS is located. Make sure that positive X is where you expect it to exist.

Extra Do: Create this drawing by switching the UCS to the right plane to draw the roof and skylights. For the geometry, apply a combination of extruding and boolean operations to build it.

Extra Do: Create this drawing past setting the UCS to achieve what you need. Tip: Extrude a rectangle, set the UCS and extrude another rectangle.

Video: Setting the UCS / Dynamic UCS

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Source: https://www.mycadsite.com/tutorials/level_3/ucs-3d-dynamic-setting-wcs-autocad-3d-3-12.html

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