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AnthonyC12-Amethyst
12-Amethyst
Aug 1, 2025 9:39 AM UTC
Question

Coordinate based model challenge

Hello all,

i am having a hard time trying to model a part based off the measurement report that we have gotten and i am wondering what i am doing wrong or how to more accurately model the part. 

AnthonyC_0-1754039194934.pngAnthonyC_1-1754039211948.pngAnthonyC_2-1754039238492.png

 

when i try to use a sweep function, i find that one or more corners (depending on if it has 3 or 4 faces) tend to be slightly off. is there a different function i can use to force creo to make a body that fits within the coordinate boundaries? the surfaces should be flat .

AnthonyC_3-1754041076898.png

 

 

 

 

CREO Parametric 6.0.6.0

 

8 replies

MartinHanak24-Ruby III
24-Ruby III
Aug 1, 2025 10:59 AM UTC

Hi,

I think that coordinates included in Excel file are wrong.

 

See ITEM1 (for example)

S5-S8 points have Z=0 ... this means they lie in a plane (let's call her PLANE 1)

S5 -3,6244 16,3355 0
S6 8,5455 45,5814 0
S7 58,309 0 0
S8 0 0 0

S1-S4 points do not have the same Z value ... this means they do no lay in a plane parallel with PLANE 1

S1 -3,6151 16,3385 -50,0018
S2 8,5564 45,5903 -50,0067
S3 58,322 0,007 -50,017
S4 0,0088 0,007 -50,0018

Also:

S1-4(X) <> S5-8(X)

S1-4(Y) <> S5-8(Y)

This probably means that points does not belong to planar faces.

 

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    kdirth
    kdirth21-Topaz I
    21-Topaz I
    Aug 1, 2025 11:38 AM UTC

    I agree with @MartinHanak that the points in your spreadsheet do not create planer surfaces.  This may be due to rounding errors in creating the point values.  If I create a datum plane from 3 points on a side, the 4th point is not on that plane except for the surfaces with all Z locations 0.

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    kdirth
    kdirth21-Topaz I
    21-Topaz I
    Aug 1, 2025 11:43 AM UTC

    To create the shapes that match all of the points you need to create curves between the points and use boundary blends to create the sides.

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