Part Modeling > Part Modeling > Engineering Features > Chamfer > Transitions > To Define a Patch Transition
To Define a Patch Transition
This topic is a continuation of To Define a Chamfer Transition.
1. To add an additional side to a three sided patch, click the Optional surface collector located on the Edge Chamfer tab (or on the Transitions tab) to activate the collector and select a surface for the additional side. The system does the following:
Adds a fillet to the Patch transition and displays the fillet radius in the graphics window and in the Radius box on the Edge Chamfer tab. This fillet becomes the fourth side of the resulting patch and is tangent.
Populates the Optional surface collector on the Transitions tab with the reference information. Notice that the corresponding Edge Chamfer tab collector indicates that an item has been selected.
2. To define the fillet radius, drag the radius handle to the preferred distance. The preview geometry is dynamically updated.
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You can also type a new radius value and press ENTER or select a most recently used value from the list in the Radius box on the Edge Chamfer tab.
3. If you want to cap the gaps between the active transition and part geometry by creating end surfaces, click the Capped check box located on the Edge Chamfer tab. Notice that this check box is available only if you use the Surface or New quilt attachment type (see About Chamfer Attachment Types). This check box is cleared by default.
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Side surfaces must exist in order to extend and use them as capping surfaces. If not, the chamfer piece cannot be capped.
This check box caps only the gaps of the active transition while the Create end surfaces check box located on the Options tab caps all chamfer piece ends for the entire chamfer feature. The Edge Chamfer tab check box overrides the Options tab check box. This enables you to cap the gaps of the active transition even if you decide not to cap all of the chamfer piece ends for the chamfer feature.
You cannot cap chamfers between a solid surface and a quilt surface.
4. At this point, the transition is defined. Do one of the following:
Define another transition.
Click Set Mode to return to Set mode and continue working with chamfer sets.
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You can also use Back to sets from the shortcut menu.
Click to save your changes, create the chamfer, and close the Chamfer tool.
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If you want to restore the default transition, select Default in the Transition Type box on the Edge Chamfer tab, or in the shortcut menu. Default transition types are not shown on the Transitions list.
Do not use Delete transition from the shortcut menu or use the DEL key to remove a transition type from the Transitions list. If you do use it, you can do one of the following to restore the default transition type: Press CTRL+Z to undo the selection, switch to Set mode, or close the Chamfer tool.
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You can also use Patch Optional Surface from the shortcut menu to activate the Optional surface collectors.
You can also use Capped from the shortcut menu to cap the gaps of the active transition.
To preview various transitions before selecting one, place your cursor over each transition type in the Transition Type box. The corresponding transition geometry is highlighted in the graphics window.
To quickly change a value as you work in the graphics window, double-click the existing value. After the box opens, type a new value and press ENTER or select a most recently used value from the list.
You can always select Default in a most recently used list to enable the system to determine the value.
You can always select Default from the Transition Type box, or from the shortcut menu enabling the system to determine the transition type for the chamfer. Notice that the transition type is in parentheses.