- Dimensioning A Slot Pattern Set
- Dimensioning Slot Pattern
- Dimensioning A Slot Pattern Blocks
- Dimensioning A Slot Pattern Tool
Technical Drawing Dimensioning Types. Dimensioning rules is very important for drawing standards. Proper dimensioning will help to manufacturers, engineers etc. To get better understanding of the designed parts. Selected front view should describe the part the best. All dimensions must be in decimals. The slot antenna was designed from the intuition of Babinet's principle, that a horizontal electric dipole in free space is the dual of a vertical slot and will have the same radiation pattern as.
PartDesign PolarPattern |
| Menu location |
|---|
| Part Design → PolarPattern |
| Workbenches |
| PartDesign |
| Default shortcut |
| None |
| Introduced in version |
| - |
| See also |
| None |
|
Description
The polar pattern tool takes a selected feature and creates a set of copies rotated around a chosen axis. Starting with v0.17, it can pattern multiple features.
Above: a slot-shaped pocket (B) made on top of a base solid (A, also referred to as support) is used for a polar pattern. The result (C) is shown on the right.
Usage
To create a pattern:
- Select the feature (introduced in version 0.19 or several features) to be patterned.
- Press the PolarPattern button.
- Define the Axis. See Options.
- Define the Angle between the last copied occurrence and the original feature.
- Set the number of Occurrences.
- If you have several features in the pattern, their order can be important, see the image below. introduced in version 0.19 You can change the order by dragging the feature in the list and you will see the result immediately as preview.
- Press OK.
Effect of the feature order
To add or remove features from an existing pattern:
- Press Add feature to add a feature to be patterned. The feature must be visible in the 3D view:
- Switch to the Model tree;
- Select in the tree the feature to be added and press Spacebar to make it visible in the 3D view;
- Switch back to the Tasks panel;
- Select the feature in the 3D view; it will be added to the list.
- Repeat to add other features.
- Press Remove feature to remove a feature from the list, or right-click on the feature in the list and select Remove.
Options
Axis
When creating a polar pattern feature, the PolarPattern parameters dialogue offers different ways of specifying the pattern rotation axis.
Normal sketch axis
An axis being normal to the sketch and starting in the origin of the sketch of the feature being used is taken as axis for the polar pattern.
The pattern direction can be reversed by ticking 'Reverse direction'.
Horizontal sketch axis
Uses the horizontal axis of the sketch for axis.
Dimensioning A Slot Pattern Set
Vertical sketch axis
Uses the vertical axis of the sketch for axis.
Custom Sketch Axis
If the sketch which defines the feature to be patterned also contains a construction line (or lines), then the drop down list will contain one custom sketch axis for each construction line. The first construction line will be labelled Sketch axis 0.
Base (X/Y/Z) axis
v0.17 and above Select one of the Body Origin's standard axis (X, Y or Z) as axis.
Select reference...
Allows you to select either a DatumLine or an edge of an object or a line of a sketch to use for axis.
Angle and Occurrences
Specifies the angle to be covered by the pattern, and the total number of pattern shapes (including the original feature). For example, four occurrences in an angle of 180 degrees would give a spacing of 60 degrees between patterns. There is one exception: If the angle is 360 degrees, since first and last occurrence are identical, four occurrences will be spaced 90 degrees apart.
Limitations
- See linear pattern feature limitations.
- Structure tools:Std Part, Std Group
- Helper tools:Body, New sketch, Edit sketch, Map sketch
- Modeling tools
- Datum tools:Create a datum point, Create a datum line, Create a datum plane, Create a local coordinate system, Create a shape binder, Create a clone
- Additive tools:Pad, Revolution, Additive loft, Additive pipe, Additive box, Additive cone, Additive cylinder, Additive ellipsoid, Additive prism, Additive sphere, Additive torus, Additive wedge
- Subtractive tools:Pocket, Hole, Groove, Subtractive loft, Subtractive pipe, Subtractive box, Subtractive cone, Subtractive cylinder, Subtractive ellipsoid, Subtractive prism, Subtractive sphere, Subtractive torus, Subtractive wedge
Dimensioning Slot Pattern
- Transformation tools:Mirrored, Linear Pattern, Polar Pattern, Create MultiTransform
- Dress-up tools:Fillet, Chamfer, Draft, Thickness
- Boolean:Boolean operation
Dimensioning A Slot Pattern Blocks
- Extras:Migrate, Shaft design wizard, Involute gear
- Contextual Menu tools:Set tip, Move object to other body, Move object after other object
- Installation:Download, Linux, Windows, MacOS, Docker, AppImage, Ubuntu Snap
- Basics:About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties; Help FreeCAD, Donate
Dimensioning A Slot Pattern Tool
- Help:Tutorials, Video tutorials
- Workbenches:Std Base; Arch, Draft, FEM, Image, Inspection, Mesh, OpenSCAD, Part, PartDesign, Path, Points, Raytracing, Reverse Engineering, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test Framework, Web
- Unmaintained workbenches:Plot, Robot, Ship
- Deprecated workbenches:Complete, Drawing
- Code:Addon Manager, Addons, Macros, External workbenches
Technical Drawing Dimensioning Types. Dimensioning rules is very important for drawing standards. Proper dimensioning will help to manufacturers, engineers etc. To get better understanding of the designed parts. Selected front view should describe the part the best. All dimensions must be in decimals. The slot antenna was designed from the intuition of Babinet's principle, that a horizontal electric dipole in free space is the dual of a vertical slot and will have the same radiation pattern as.
PartDesign PolarPattern |
| Menu location |
|---|
| Part Design → PolarPattern |
| Workbenches |
| PartDesign |
| Default shortcut |
| None |
| Introduced in version |
| - |
| See also |
| None |
|
Description
The polar pattern tool takes a selected feature and creates a set of copies rotated around a chosen axis. Starting with v0.17, it can pattern multiple features.
Above: a slot-shaped pocket (B) made on top of a base solid (A, also referred to as support) is used for a polar pattern. The result (C) is shown on the right.
Usage
To create a pattern:
- Select the feature (introduced in version 0.19 or several features) to be patterned.
- Press the PolarPattern button.
- Define the Axis. See Options.
- Define the Angle between the last copied occurrence and the original feature.
- Set the number of Occurrences.
- If you have several features in the pattern, their order can be important, see the image below. introduced in version 0.19 You can change the order by dragging the feature in the list and you will see the result immediately as preview.
- Press OK.
Effect of the feature order
To add or remove features from an existing pattern:
- Press Add feature to add a feature to be patterned. The feature must be visible in the 3D view:
- Switch to the Model tree;
- Select in the tree the feature to be added and press Spacebar to make it visible in the 3D view;
- Switch back to the Tasks panel;
- Select the feature in the 3D view; it will be added to the list.
- Repeat to add other features.
- Press Remove feature to remove a feature from the list, or right-click on the feature in the list and select Remove.
Options
Axis
When creating a polar pattern feature, the PolarPattern parameters dialogue offers different ways of specifying the pattern rotation axis.
Normal sketch axis
An axis being normal to the sketch and starting in the origin of the sketch of the feature being used is taken as axis for the polar pattern.
The pattern direction can be reversed by ticking 'Reverse direction'.
Horizontal sketch axis
Uses the horizontal axis of the sketch for axis.
Dimensioning A Slot Pattern Set
Vertical sketch axis
Uses the vertical axis of the sketch for axis.
Custom Sketch Axis
If the sketch which defines the feature to be patterned also contains a construction line (or lines), then the drop down list will contain one custom sketch axis for each construction line. The first construction line will be labelled Sketch axis 0.
Base (X/Y/Z) axis
v0.17 and above Select one of the Body Origin's standard axis (X, Y or Z) as axis.
Select reference...
Allows you to select either a DatumLine or an edge of an object or a line of a sketch to use for axis.
Angle and Occurrences
Specifies the angle to be covered by the pattern, and the total number of pattern shapes (including the original feature). For example, four occurrences in an angle of 180 degrees would give a spacing of 60 degrees between patterns. There is one exception: If the angle is 360 degrees, since first and last occurrence are identical, four occurrences will be spaced 90 degrees apart.
Limitations
- See linear pattern feature limitations.
- Structure tools:Std Part, Std Group
- Helper tools:Body, New sketch, Edit sketch, Map sketch
- Modeling tools
- Datum tools:Create a datum point, Create a datum line, Create a datum plane, Create a local coordinate system, Create a shape binder, Create a clone
- Additive tools:Pad, Revolution, Additive loft, Additive pipe, Additive box, Additive cone, Additive cylinder, Additive ellipsoid, Additive prism, Additive sphere, Additive torus, Additive wedge
- Subtractive tools:Pocket, Hole, Groove, Subtractive loft, Subtractive pipe, Subtractive box, Subtractive cone, Subtractive cylinder, Subtractive ellipsoid, Subtractive prism, Subtractive sphere, Subtractive torus, Subtractive wedge
Dimensioning Slot Pattern
- Transformation tools:Mirrored, Linear Pattern, Polar Pattern, Create MultiTransform
- Dress-up tools:Fillet, Chamfer, Draft, Thickness
- Boolean:Boolean operation
Dimensioning A Slot Pattern Blocks
- Extras:Migrate, Shaft design wizard, Involute gear
- Contextual Menu tools:Set tip, Move object to other body, Move object after other object
- Installation:Download, Linux, Windows, MacOS, Docker, AppImage, Ubuntu Snap
- Basics:About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties; Help FreeCAD, Donate
Dimensioning A Slot Pattern Tool
- Help:Tutorials, Video tutorials
- Workbenches:Std Base; Arch, Draft, FEM, Image, Inspection, Mesh, OpenSCAD, Part, PartDesign, Path, Points, Raytracing, Reverse Engineering, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test Framework, Web
- Unmaintained workbenches:Plot, Robot, Ship
- Deprecated workbenches:Complete, Drawing
- Code:Addon Manager, Addons, Macros, External workbenches
- Hubs:User hub, Power users hub, Developer hub
