One Minute Tip - Extrude by Offset from Base Plane to "Up to Surface"

You not necessary to create new base plane of the small hole base that have distance from base knob is 2.9mm. You just offset the sketch from base plane how depth that you want. And in "End Condition" you can extrude until "Up to Surface" by click inside peak of knob. * For better playback, allow the video to download before playing Download WMV ( 4.43MB compressed file )