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Manual

Manual

7.9.3.10.1.5. What should be considered

7.9.3.10.1.5.1. All blends, whose edges meet, have to be made as one blend

All blends, whose edges meet, have to be made as one blend. So the command New Chamfer/Fillet... can only be used initially. For further Blends the command Insert edge(s) to 'Blend xy' ... has to be used, otherwise an error message is displayed - even if the Blends have the same sizes (see following figures).

It is recommended to do all blends, whose edges meet, in one step. Otherwise, the performance of the Blend Feature can be worse.

  1. Using the command New Chamfer/Fillet... instead of Insert edge(s) to 'Blend xy' ... is not allowed.

  2. Error message in 3D view.

  3. Forbidden blends are tagged with a red x-icon in the 3D History.

  4. Error message in the Messages window.

7.9.3.10.1.5.2. Blends in pattern

[Note] Note
  • First create the pattern, then the Blend.

  • When using the Blend feature for patterns please regard to use it on the origin geometry.

  1. Blend on origin geometry is supported.

    Correct use: Command "New Chamfer/Fillet..." is displayed

    Correct use: Command "New Chamfer/Fillet..." is displayed

  2. Blend on derived pattern geometries is not supported.

    Incorrect use: Note "Face is a result of pattern feature" is displayed

    Incorrect use: Note "Face is a result of pattern feature" is displayed

  3. When following the correct procedure, the Blend feature is applied to the origin geometry and all derived pattern elements.

    Result

    Result

[Note] Note

For patterns, if problems occur, try both edge selection and face selection.

7.9.3.10.1.5.3. Tangent continuous

If subsequent edges have a connection angle < 15 degree, you just have to select one single edge in order to apply the function New Chamfer/Fillet... to all following edges as well.

Example:

One edge selected

One edge selected

Automated application of tangent continuous on all adjoining, fitting edges

Automated application of tangent continuous on all adjoining, fitting edges

[Note] Note

Tangent continuous may cause unwanted blends. In this case the blend has to be created earlier or by sketch.

Transition angle larger than 15 degree

For angles larger than 15 degree the tangent continuous does not take effect.

In following example the first edge after the selected one is blended , the second one not (see figure under b), because the transition angle is larger than 15 degree.

  1. Selecting edge

  2. Automatic tangent continuous on fitting edges

Resolution too low

Real, PARTsolutions never depicts curves. Curves are always resolved in lines connected by a certain angle. If the resolution is too low, it may happen that the transition angle is larger than 15 degrees.

If a line follows a curve and tangent continuous fails, the problem is always too low resolution.

Example of curve following line

Example of curve following line

If a line follows a line connected by an obtuse angle and the tangent continuous fails, the reason is an angle of more than 15 degrees (see above).

Example of line following line

Example of line following line

In following example edge selection is used. For a few edges tangent continuous works, but at two other edges tangent continuous stops due to too low resolution.

Actually the Blend feature should function due to tangent continuous.

Actually the Blend feature should function due to tangent continuous.

The figure shows that tangent continuous fails because of to low resolution

The figure shows that tangent continuous fails because of to low resolution

Alternative approach

[Note] Note

Especially for a continuous contour, do not use edge selection, but face selection, since this is considerably less effort compared to a selection of the individual edges!

Example:

The two following figures show the use of face selection.

Selection of the face

Selection of the face

The Blend feature is applied to all edges adjoining the face.

The Blend feature is applied to all edges adjoining the face.

[Note] Note
  • Tangent continuous is also used by the CAD systems, so it is possible, that you have more blends in the CAD systems, than in PARTdesigner. To be sure, tangent continuous works, it is recommended to select more edges than absolutely necessary. More edges are not a problem, less can cause problems.

  • In some cases, inserting a blend can set the tangent continuous back.[81] In this case, you have to select the edge manually. As already mentioned: It is recommended to select more edges than absolutely necessary.

7.9.3.10.1.5.4.  Preview presentation for Chamfer/Fillet

You can change the Preview presentation for Chamfer/Fillet in two ways:

  1. Via PARTadmin:

    PARTadmin -> Configuration files -> $CADENAS_USER -> pdesign3d.cfg -> Settings3DEditor -> blendPreviewType

  2. Via Settings in PARTdesigner:

    Open the settings page via F10 key or alternatively via Extras menu -> Settings... -> PARTdesigner -> Chamfer/Fillet -> Preview presentation

    Preview presentation:

    • Deactivated

    • Full part

    • Chamfer

    • Difference to the original

    • Change (default)

[Note] Note

You can only see a difference between Difference to the original and Change when you edit an already existing blend. See following figures.

The performance for Difference to the original is a bit faster than for the default option Change.

Difference to the original

Difference to the original

Change (default)

Change (default)

You can activate/deactivate the Preview presentation in the Chamfer/Fillet dialog (see following figure).

"Chamfer/Fillet" dialog box

"Chamfer/Fillet" dialog box

[Note] Note

Activating/deactivating the Preview presentation will also activate/deactivate Edge visualization.

The default color for the Preview presentation is green. To avoid mix-ups with a sketch (default color is also green) and for better differentiation between the Preview presentation and Edge visualization, you can change the color of the Preview presentation in PARTadmin:

PARTadmin -> Configuration files -> $CADENAS_USER -> pdesign3d.cfg -> Settings3DEditor -> PreviewColor

Color codes are stated in the "ARGB" schema. "A" stands for the transparency.

Example:

  • Yellow: 80FFFF00

  • Blue: 700000FF

Preview presentation

For Edge visualization the Preview presentation has to be activated. If Edge visualization is activated, you can see all edges where the Blend feature will be applied (see following figure).

Editing mode with opened "Chamfer/Fillet" dialog box - All edges where the function shall be applied are marked in green.

Editing mode with opened "Chamfer/Fillet" dialog box - All edges where the function shall be applied are marked in green.

You can change the settings for Edge visualization in two ways:

  1. Via PARTadmin:

    PARTadmin -> Configuration files -> $CADENAS_USER -> pdesign3d.cfg -> Settings3DEditor -> showBlendEdges

  2. Via Settings in PARTdesigner:

    Press F10 or alternatively open the settings menu via Extras menu -> Settings... -> PARTdesigner -> Chamfer/Fillet.

    Activate Edge visualization.

[Note] Note

Just as well you can click on the eye symbol in the Chamfer/Fillet dialog box in order to activate or deactivate the Edge visualization (see Fig. „"Chamfer/Fillet" dialog box“).

[Note] Note

Activating/deactivating the Preview presentation will also activate/deactivate Edge visualization.

Default color for the Preview presentation is green. To avoid mix-ups with a sketch (default color is also green) and for better differentiation between then Preview presentation and Edge visualization you can adjust the color of Preview presentation in PARTadmin.

PARTadmin -> Configuration files -> $CADENAS_USER -> pdesign3d.cfg -> Settings3DEditor -> PreviewEdgeColor

Color codes (ARGB)

  • Yellow: 80FFFF00

  • Blue: 700000FF

7.9.3.10.1.5.5. Face selection

[Note] Note

If edge selection and face selection lead to the same result, in complex cases, basically, use face selection. If only one or two certain edges shall be edited for example, you can decide for the more comfortable and quicker proceeding.

[Note] Note

For the face selection you have three ways of proceeding available which lead to different results.

  • Selection of all faces in ONE step and then using command New Chamfer/Fillet...

  • Creation of ONE face with New Chamfer/Fillet.... Then in each further step, selection of only ONE face and using the command Insert face(s) to 'Blend xy'....

  • Selection of all faces in ONE step + definition of Base surface.

In the following you can find examples for these three procedures:

  1. All faces selected in ONE step

    1. 5 faces are selected in ONE step.

      Selected faces (5) - Front view

      Selected faces (5) - Front view

      Selected faces (5) - Back view

      Selected faces (5) - Back view

    2. After using the command New Chamfer/Fillet..., in the dialog box Chamfer/Fillet, under Faces (intersect.), the 5 intersecting faces are shown.

      Under "Faces (intersect.)" display of 5 intersecting faces

      Under "Faces (intersect.)" display of 5 intersecting faces

    3. Result:

      The common cutting edges of all faces are rounded/bevelled.

      Rounded edges - Front view

      Rounded edges - Front view

      Rounded edges - Back view

      Rounded edges - Back view

  2. Creation of ONE face with New Chamfer/Fillet.... Then in each further step, selection of only ONE face and using the command Insert face(s) to 'Blend xy'....

    In the dialog box Chamfer/Fillet, under Faces, the total number of selected faces is shown. (At last step of repetition '5' in this example.)

    Result:

    All edges of individual faces are edited by the Blend feature (chamfer or fillet).

    Rounded edges - Front view

    Rounded edges - Front view

    Rounded edges - Back view

    Rounded edges - Back view

  3. Selection of all faces in ONE step + definition of Base surface

    1. Select the desired faces in the same way as in the first use case and then call the dialog box Chamfer/Fillet via context menu command New Chamfer/Fillet....

    2. But now activate the checkbox Base surface in addition, unlike as in the 1. use case.

    Result:

    Only edges adjoining the base surface are rounded (or bevelled). The vertical edges at the small cuboid for example are not rounded in compare to the use without base surface (compare above).

    Rounded edges - Front view

    Rounded edges - Front view

    Rounded edges - Back view

    Rounded edges - Back view

Once again all results in direct comparison:

  • Selection of all faces in ONE step and then using command New Chamfer/Fillet...

    -> The common cutting edges of all faces are rounded/bevelled.

    Rounded edges - Front view

    Rounded edges - Front view

    Rounded edges - Back view

    Rounded edges - Back view

  • Creation of ONE face with New Chamfer/Fillet.... Then in each further step, selection of only ONE face and using the command Insert face(s) to 'Blend xy'....

    -> Edges of all selected faces are rounded/bevelled.

    Rounded edges - Front view

    Rounded edges - Front view

    Rounded edges - Back view

    Rounded edges - Back view

  • Selection of all faces in ONE step + definition of Base surface

    -> Only edges adjoining the base surface are rounded/bevelled.

    Rounded edges - Front view

    Rounded edges - Front view

    Rounded edges - Back view

    Rounded edges - Back view

7.9.3.10.1.5.6.  Combination of Sweep and Blend

Face select: Blends are only allowed, when a non sweep surface is selected. If the face itself has attached surfaces which are sweeps the blend will work. Every other combination is not supported. So when one of the selected faces is a sweep face, the blend will fail (see Fig. „Sweep face cannot be blended“).

Edge select: The user must not select edges when one of the attached faces is a side face of a sweep (see Fig. „Edge between two sweep faces cannot be blended“ and Fig. „Edge between sweep and regular face cannot be blended“). Edges adjacent to front or back faces of a sweep are allowed (see Fig. „Blend on front face of sweep (selection)“ and Fig. „Blend on front face of sweep (result)“).

Face intersection: If one of the selected faces is a sweep face, the blend is not supported.

Examples:

Blend on front face of sweep (selection)

Blend on front face of sweep (selection)

Blend on front face of sweep (result)

Blend on front face of sweep (result)

 

Edge between two sweep faces cannot be blended

Edge between two sweep faces cannot be blended

Edge between sweep and regular face cannot be blended

Edge between sweep and regular face cannot be blended

Sweep face cannot be blended

Sweep face cannot be blended

Combination of Sweep and Blend due to tangent continuous

Tangent continuous: If we have to continue an edge tangentially and the resulting edge has faces with sweeps, it will fail (see Fig. „Sweep edge blended due to tangent continuous“). No error message is displayed, but the part will fail when exporting - depending on CAD system.

Initial situation

Initial situation

Edge selected

Edge selected

Tangent continuous visible in blend preview

Tangent continuous visible in blend preview

Result failed

Sweep edge blended due to tangent continuous

Sweep edge blended due to tangent continuous

7.9.3.10.1.5.7. Depiction of Chamfer/Fillet in different CAD systems

Fillets/chamfers may look different in CAD systems than in PARTsolutions and PARTdesigner.

PARTdesigner / PARTdataManager

PARTdesigner / PARTdataManager

Inventor 2018

Inventor 2018

SolidEdge ST10

SolidEdge ST10

SolidWorks 2017

SolidWorks 2017

Creo 4.0

Creo 4.0

Edge/Corner Chamfer in Creo 4.0

Even within a single CAD system the depiction may differ (see example of Creo).

Creo 4.0: Edge Chamfer (default)

Creo 4.0: Edge Chamfer (default)

Creo 4.0 setting option; Edge Chamfer / Corner Chamfer

Creo 4.0 setting option; Edge Chamfer / Corner Chamfer

Creo 4.0: Corner Chamfer

Creo 4.0: Corner Chamfer



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