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sps_cad_guy
Posts: 124
Registered: ‎08-22-2012
Message 1 of 16 (289 Views)
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Ordinate Dimensions

289 Views, 15 Replies
12-18-2013 04:44 AM

I use ordinate dimensioning on most all the drawings that go to our shop, but I've run into a problem setting 0,0 on one part.

Along the left side, is a straight edge, but the zero point along the bottom will be a point.

How do I use the point as my zero surface?

Thanks so much for your help.

 

 

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ccarreiras
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Message 2 of 16 (284 Views)

Re: Ordinate Dimensions

12-18-2013 04:57 AM in reply to: sps_cad_guy

Hi!

 

I can't understand what you try to achieve...

 

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Regards.
CarlosC

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sps_cad_guy
Posts: 124
Registered: ‎08-22-2012
Message 3 of 16 (280 Views)

Re: Ordinate Dimensions

12-18-2013 05:05 AM in reply to: ccarreiras

Sorry, I thought the screen would clear it up.

I've added a note to my screen shot to hopefully make it easier to understand what I need to accomplish.

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chad38
Posts: 168
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Message 4 of 16 (268 Views)

Re: Ordinate Dimensions

12-18-2013 05:34 AM in reply to: sps_cad_guy

I haven't had to figure something like this out yet, but if I was and couldn't get the software to allow me to at first, I would use a sketch within the print and place the point myself using project geometry.

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GSE_Dan_A
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Message 5 of 16 (262 Views)

Re: Ordinate Dimensions

12-18-2013 05:38 AM in reply to: chad38

Depending on your geometry, sometimes you can place the Ordinate Origin at any point on your part and then RMB on the Origin symbol and go to Edit. You will then be able to enter co-ordinates (X and Y) in order to move the Origin a specified amount.

 

Origin Indicator Edit.jpg

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chad38
Posts: 168
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Message 6 of 16 (253 Views)

Re: Ordinate Dimensions

12-18-2013 05:50 AM in reply to: GSE_Dan_A

Wouldn't it be simpler to do as I said above, considering the part geometry may change, and if the point placed in the sketch is constrained to the part geometry, the origin point wouldn't need to be refigured and adjusted every time the geometry changed slightly?

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GSE_Dan_A
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Message 7 of 16 (245 Views)

Re: Ordinate Dimensions

12-18-2013 05:56 AM in reply to: chad38

Yes my method is assuming the geometry is correct and that no changes are to be made. In my example, I did not need to use the Edit method as it was easy to select my Origin Point, but it was the only recent example of where I used a Ordinate Dimension.  This is just an alternate method that may work for the OP (or someone else that may happen to come across this thread).

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sps_cad_guy
Posts: 124
Registered: ‎08-22-2012
Message 8 of 16 (242 Views)

Re: Ordinate Dimensions

12-18-2013 05:57 AM in reply to: chad38

I tried creating the sketch on the drawing, but could not get the line I drew to constrain to the point that I need to use as zero.

Setting the 0,0 point, then moving it down seems to have worked like a champ.

 

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chad38
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Message 9 of 16 (239 Views)

Re: Ordinate Dimensions

12-18-2013 05:59 AM in reply to: GSE_Dan_A

Im relatively new to inventor, so I don't want to come across as a know-it-all. Would my point not remain constrained to the part geometry, provided the basic shape of the geometry remained the same? I understand that if the part changed drastically I would expect to perhaps lose a few constraints that I'd have to repair, but would I lose constraints during simple, ordinary changes?

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chad38
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Message 10 of 16 (237 Views)

Re: Ordinate Dimensions

12-18-2013 06:01 AM in reply to: sps_cad_guy

You must select the view to use BEFORE creating the sketch. Then you must use "project geometry" to be able to constrain to the lines in the view. Maybe someone with a bit more experience in the software than I can confirm this is how to sketch within a view in inventor?

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