Sketch Fillet

Sketch Fillet

Click the Sketch Fillet command button on the ribbon to activate the Sketch Fillet command. If there is no Sketch Plane currently active, you are prompted to select one.

Click the Sketch Fillet command button on the ribbon to activate the Sketch Fillet command. If there is no Sketch Plane currently active, you are prompted to select one.

Sketch FilletWith this command, you can create fillets between two intersecting lines, two parallel lines, a line and a circular arc that intersect, and two circular arcs that intersect. Fillets cant be applied to circles, ellipses, elliptical arcs and splines. Fillets also cant be applied to non-intersecting entities, with parallel lines being an exception.

When you invoke the Sketch Fillet command, you see a Context Ribbon. The ribbon starts out with just a Cancel option in it. You are prompted to select the two entities to fillet. When you mouse over an entity, it highlights in light green if it is a valid selection. If not, you do not see any highlight.

Clicking a highlighted entity selects it for the fillet operation. Once you have selected one valid entity, moving your cursor over other entities shows you a preview of the fillet, if a fillet can be created between the selected entity and this entity. The preview is displayed as a red arc.

To calculate the starting radius of the fillet arc, we consider the lengths of the lines and radii of the arcs involved in the operation. The fillet arc length is 25% of the smaller value.

Sketch FilletHighlighting another valid entity removes the existing preview and show you a new preview. If two entities can be filleted in more than one way (e.g. two lines intersecting to form an X have four possible fillet options) then the selection pick points determines which solution is created. See FilletPreview.avi on page 160 for a demonstration.

Once you have selected two valid entities, you see a fillet preview and an updated Context Ribbon.

Sketch FilletYou can click and drag on the yellow arrow to define the fillet radius.

You can also type into the Radius edit box to change the fillet radius. A zero radius is not valid. If you drag the arrow such that the radius is zero, or you type in 0.0 in the box, you see an error message. Change the value to something valid Click OK to commit the preview and exit the command.

The Sketch Fillet differs from other Sketch commands in that invoking another command also commits the preview and exit the command. Click cancel or press Esc to discard the preview and exit the command.

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