why surface modeling?

• don’t need to work with thickness of the object
• want to operate individual surface

in surface mode you can easily delete a surface of a box.

use TRIM to remove part of a surface

sweep: 2 lines (profile is a line and path is another line), also change the TWIST ANGLE

• can also trim a surface from the twisted surface

STITCH - combine surfaces together into a solid body (fill the enclosed space)

• cylinder spaces —> cylinder body
• body works better with 3D printing

MODIFY > SPLIT FACE + STITCH

• not removing the split space, just separate them

CREATE > LOFT : connect 2 line