![VIDEO: Turning a Closed Form Bowl](https://www.woodworkersjournal.com/wp-content/uploads/Turning-Closed-Form-Bowls-Video-Lead.jpg)
Learn the basics of how to make a closed form bowl on the lathe. A closed form bowl has an interior that is bigger than the mouth opening. Ernie demonstrates this process using a glue block to secure the work piece, but you could also use a four-jaw chuck or a vacuum chuck.