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Problem with moving components on PCB because of assembly drawings

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  • Problem with moving components on PCB because of assembly drawings

    Hi,
    during a layout, I noticed a problem with moving components on the PCB. I had only Bottom layer displayed buy while selecting a component, I noticed it is bigger than the component's footprint as shown in the attached screenshot. I investigated in my PCB library to see if there is a problem with the footprint. There I noticed the assembly drawing of the component. I enabled all layers to see if that is it, and yes, it was the designator of the component in the assembly drawing. So I had to place the designator in the middle of the component in mechanical layer 29, where I have defined my assembly drawings. By doing this, I could move the component freely between all other components on the PCB.
    Is there a way to ignore all designators in any layer during placement?

    BR
    Manu

  • #2
    Unfortunately, with Altium all the primitives in the footprint determine the bounding rectangle, which is used for clearance. You can try disabling the online/batch version of the component clearance from the design rule check window. Also it might help to have the special string replacement turned on, so that the designator string gets replaced by the actual designator which is shorter in terms as symbols, hence less long.

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    • #3
      I disabled online/batch version of the component clearance but it did not help and in version 18 of Altium, they say:
      • The Convert Special Strings option has been removed since the string is always displayed; if null, then the parameter name is displayed
      Now the question is, what to do with this problem? I have a serious problem with placement because of this. I am doing the placement of IMX module for the advanced layout course and I need to save place by getting components closed to each other but I can't. Those components in the red area (see attached screenshot) suffer the same problem.

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      • #4
        I am still not sure what the problem is. Do you get component clearance violation?

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        • #5
          Hi Robert,
          no violation. I just can't move the components towards others when I reach a certain distance. I can send you the project as is but I don't know if it is possible to upload a zip file here in this forum. Is it?

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          • #6
            ok, send it to me, please delete history directory, so the file is not large.

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            • #7
              OK Robert but I am at work and I can probably send it to you till tomorrow. Thanks a lot.

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              • #8
                Hi Robert,

                sorry for the late reply. I could not upload the rar file here. I will send it to you per E-Mail.
                BR
                Manu

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                • #9
                  I have got the file, however, there is an error (I can not open it, see below). Please could you use zip instead?

                  Click image for larger version

Name:	error in rar.jpg
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Size:	17.4 KB
ID:	1695

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                  • #10
                    Hi Robert,
                    sure I will. Thanks for your time.
                    BR

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                    • #11
                      I do not have any problems in that area (no placement problems, no selection problem):

                      Click image for larger version

Name:	no problem.jpg
Views:	1
Size:	276.0 KB
ID:	1711

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