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Namoi1
Posts: 42
Registered: ‎08-27-2013
Message 1 of 14 (314 Views)

centre lines across 2 views (one with a break) go skew

314 Views, 13 Replies
11-25-2013 09:31 PM

If I've got a centerline in a drawing created from a cirlce in one view and the corresponding rectancle in the projected view, then break the projected view the centre mark from the first view moves off centre.

 

Also dimensioning from the centre line to a line in the projected views (not necessarily broken) doesn't work.

 

I know I can use bisect centre line and stretch it to meet a centre mark in the base view but every time i move the view I've got to adjust it.  It's what I'm doing now but it's a bit of a pain.

 

Any better solutions to this, as I think this is a fairly basic feature of drawings, and should be as straight forward as can be.  Thanks if I get a response, but I don't think I will

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Namoi1
Posts: 42
Registered: ‎08-27-2013
Message 2 of 14 (265 Views)

Re: centre lines across 2 views (one with a break) go skew

12-18-2013 09:57 PM in reply to: Namoi1

here's a pic of what happens

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blair
Posts: 3,947
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Message 3 of 14 (254 Views)

Re: centre lines across 2 views (one with a break) go skew

12-18-2013 10:46 PM in reply to: Namoi1

You would need to "anchor" the line to geomtry in the view to keep it moving with the view as the break shifts the items.

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Active Contributor
Namoi1
Posts: 42
Registered: ‎08-27-2013
Message 4 of 14 (226 Views)

Re: centre lines across 2 views (one with a break) go skew

12-19-2013 02:29 PM in reply to: blair
how the hell did you think I created the centerline to start with??? I picked geometry of course, if that doesn't anchor it enough I don't know what they expect!
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blair
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Message 5 of 14 (213 Views)

Re: centre lines across 2 views (one with a break) go skew

12-19-2013 05:33 PM in reply to: Namoi1

Select the view, then create new sketch, Project one of the vertical lines, then create a horizontal line from the midpoint of the projected vertical line. Change the line-type of the line construction or center and drag it long enough to get over to the next view.

 

Don't know how else to get a line from one view to another view in Inventor as each view is it's own.

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Namoi1
Posts: 42
Registered: ‎08-27-2013
Message 6 of 14 (209 Views)

Re: centre lines across 2 views (one with a break) go skew

12-19-2013 08:32 PM in reply to: blair
well when annotating and applying centerlines I just select the cirlce in one view and the projected line of the circle in the projected view, it automatically finds the midpoint of the line. This works fine, except when you break a view as you can see in the pic.
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Namoi1
Posts: 42
Registered: ‎08-27-2013
Message 7 of 14 (133 Views)

Re: centre lines across 2 views (one with a break) go skew

01-06-2014 05:06 PM in reply to: Namoi1

test post to see if it shows up

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Namoi1
Posts: 42
Registered: ‎08-27-2013
Message 8 of 14 (131 Views)

Re: centre lines across 2 views (one with a break) go skew

01-06-2014 05:11 PM in reply to: Namoi1

here is a screen capture of what I'm doing and what the problems are.

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blair
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Message 9 of 14 (111 Views)

Re: centre lines across 2 views (one with a break) go skew

01-07-2014 09:07 AM in reply to: Namoi1
I have never seen the methodology you are using in using centerlines from one view to another view. Possibly this is something you have carried over from AutoCAD days. This could very well be the route of your problem. Just because Inventor lets you do it, doesn't mean that it's a solid practice. I think the centerline from view to view is what's causing your problems. I don't have the CAD standard in front of me, but it's not considered proper to have lines run from view to view. Each view should stand on it's own.
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Active Contributor
Namoi1
Posts: 42
Registered: ‎08-27-2013
Message 10 of 14 (102 Views)

Re: centre lines across 2 views (one with a break) go skew

01-07-2014 02:26 PM in reply to: blair

Blair

 

here are a couple of examples from Australian Standards, which are based o ISO virtually word for word.

As you can see it isn't forbidden, I think it is actaully much more logical to do it it some instances.

 

It's not really a carry over from AutoCAD as I have only really used Inventor, (tiny bit of AutoCAD), do do actual drafting.

 

Like I've said before I understand fully that the views are totally separate entities, and it is probably a bit of a pain in the arse to get them to talk to each other, in order to do this (don't know why they didn't do it in the first place, there must be some relation, as the projected view needs to refernce the base view anyhow).

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