CAD-Line | DXF tab

Use the CAD-Line dialog-box | DXF tab to:

Show a DXF drawing that is linked to a DXF-Element see note


Re-align the DXF Drawing with the CAD-Line
Show or Hide different DXF Layers, and to change the colours of the DXF Layers
Convert DXF Entities into MechDesigner sketch-elements
Clear (remove) the DXF Drawing from the CAD-Line

Note: Before you can use the CAD-Line | DXF tab, to show a DXF drawing, you must open the DXF Drawing to add the DXF element to the Assembly-Tree.

1. File menu (or toolbar) > Open

See: File menu > Open,

DXF tab



tog_minus        Select DXF-Element 

Dialog-CADLine-DXF-Select DXF Element

To select which DXF-Element and DXF Drawing you want to link to the CAD-Line and show in the graphic-area:

Select DXF-Element box

1.Click the down-arrow1s-red to select a DXF-Element


Each name in the list box has two parts, separated by a ':'

First Part: DXF-Element : the same as in the Assembly-Tree
Second Part: DXF drawing name: the same as the original DXF Drawing

The DXF drawing shows in the graphic-area immediately.

If you cannot see the DXF Drawing, then...:

Change the background colour of the graphic-area

See Application Settings | colour tab. Gray is a good colour.

The DXF drawing may be outside of the current graphic view.

See View menu > Zoom-Out.

The Linear Units of the DXF Drawing may be incorrect to make the drawing very small or very big. It is normal to use the same units as the original DXF drawing.

See Edit DXF-Element dialog-box.


Edit DXF Layers : open the DXF Layers dialog-box
Remove DXF : remove the DXF Drawing from the CAD-Line.

tog_minus        Alignment of DXF 


To change the alignment of the DXF Drawing with the CAD-Line, there are two boxes.

DXF Point to CAD-Line's Origin

1.Click the box to make the box Orange -See Note 1
2.Click the Point in the DXF Drawing that you want to put at the Origin of the CAD-Line

When you click a Point in the DXF Drawing, the DXF drawing moves so that the:

DXF Drawing moves so that the DXF-Point moves to the Origin of the CAD-Line
DXF Point shows in the box, and the box turns Green
'DXF Point along X–axis / CAD-Line' box turns Orange, and that box should become active.

DXF Point along X-Axis / CAD-Line

1.Click the box to make the box Orange (if necessary) -See Note 1
2.Click a Point in the DXF Drawing that you want to be somewhere along the CAD-Line.

When you click a DXF Point the DXF drawing moves so that:

the DXF-Point moves to the X-axis of the CAD-Line
the DXF-Point shows in the box and the box turns Green,


Note 1: If you want to put a different DXF-Point at the Origin or along the X-axis:

1.Click inside the a box so the box turns Orange
2.Click a different Point in the DXF Drawing

Note 2: If you cannot see the DXF Drawing but not DXF-Points, then:

1.Click the Display Filter toolbar > DXF Points to hide or show the dXF Points.

tog_minus        Convert DXF Entities to MD Lines and Arcs 


The DXF Line, Arc and Point entities that belong to the DXF Drawing are 'dumb'.

Use this separator to convert the dumb DXF-Entities to MechDesigner sketch-elements.

Owner Part

This box specifies the Part to which you will add the sketch-element

Usually, you will add the sketch-elements to the same Part as the CAD-Line.

1.Click in side the box to make it Orange
2.Click a Part in the graphic-area or the Assembly-Tree.

The Part should now be in the Owner Part box

DXF Entity

This box specifies which DXF-Entity you will convert to a MechDesigner sketch-element.

Before you click a DXF-Entity, you may want to

Make active the Select Loop check box so that you will convert a number of DXF-Entities sketch-loop
Select the Lock Points check box to fix the Points in the sketch-elements to the Part, after they are converted to MD sketch-elements
Optionally, edit the Merge Radius value to help make a sketch-loop with those DXF entities inside the Merge-Radius' value.
1.When the 'DXF Entity' box is Orange Select a DXF Entity (a DXF Line or DXF Arc) in the graphic-area
3.Click the Convert to MD Entities button

Repeat 1 to 3 again and again to convert more DXF Entities to MD sketch-elements.

Note: You must click the DXF entity Parameter box in the dialog to make it Orange before you click a DXF Entity in the graphic-area.


Once you apply the 'Convert to MD Entities' button, the new sketch-elements are not linked with the CAD-Line; they are linked with the Part.

Therefore, you can use Clear DXF Link to remove the DXF File, but the sketch-elements stay with the Part.

Tutorial and Reference Help Files for MechDesigner and MotionDesigner 13.2 + © Machine, Mechanism, Motion and Cam Design Software by PSMotion Ltd