centre lines not showing

[HARMAN]

I am currently chewing my way throughh a pile of detailing and i am having problems generating centre lines. I have various circular features on a drawing which wont generate a centre line through show and erase. Some are holes andsome are circular cuts. I have done some drawings already today and the centre lines on holes came up fine.


I also have a groove (circular)and i would like to place a centre line on the middle of the groove as that is where i want it sized to. The only way i have been able to do this so far is to sketch a circle, change the line type and relate it to the view. This seems pretty long winded though, surely there must be a simpler way of doing this.


Any help is much appreciated. Thanks, Mark


Using wf3

 

[robertib]

If the features are not complete circles, there will be no centrelines.


There are 2 methods to adding centrelines in the model.


1. If you create a sketch in the extrusion, you can edit the sketch, and in the Sketch menuthere is an option for Axis Point. Create this at the centre of each circle, and you will have the centrelines.


2. If you create a sketch andthen extrude the sketch, you will need to create the centrelines by adding a datum centreline to each circle.

 

[SRINIVASANIYER1]

In the absence of a picture and to the extent I can visualise, I recommend the following method.


I avoid sketching in drawing as much as possible.


Create axis in model (since the cuts are circular, it will form part of a cylinder) for all the circular features.... It is far easier than creating them in drawing.


also check whether the option for showing PCD circle is set to YES.


Now show and erase will give you the centerlines, PCD (provided, the patterning is a dimensional pattern) etc...

 

[jeff4136]

> Create axis in model


Ditto on that.