Menu
: TRIM : Blend:Multiple RBallShortcut
: NoneThis command generates rolling ball blends between the target surface and all other surfaces visible on the screen. It is the blend equivalent of the Trim Multiple command.
In preparation for this command you must first check the directions of all of the surface normals using the command SURFACEÞNormals:Show. They should all be oriented consistently. You can change them as required with SURFACEÞNormals:Change .
After executing the command you are first asked to confirm that the surfaces are correctly oriented before a parameter box appears requesting the radius of the blend and the direction of the blend. Choosing whether the ball will be rolled on the side of the surface pointed to by the arrows (normal side) or the opposite side (opposite side) indicates the direction. This needs to be indicated for both surfaces giving four possible combinations (normal-normal, normal-opposite, opposite-normal and opposite-opposite) producing four possible blends as represented below.
Blends will be calculated with each of the surfaces on the screen in turn.
An example of the use of this command is when designing a washbasin. The washbasin below has been designed with a single surface but then a soap recess has been added with a second surface. The soap recess has been blended with a rolling ball blend to the basin. This makes a total of three surfaces. A fourth cylindrical surface has been created in order to create a run off for excess water from the soap tray. This needs to be blended with all of the other surfaces. The result of this command is shown on the right. All of the blends have been created but as you can see some of them extend beyond there correct endpoints. The related command TRIMÞBlend:Blend With Trim can be used to finish of the design.