The are several techniques involved in carving, depending of the material you use. Because you can not put back anything you take off while carving.
WOOD CARVING
As known to the world that Indonesia has various types of wood. We
used Suar / Trembesi wood as raw material for wood sculpture. Suar
/ Trembesi wood (an umbrella wood) is taken from the timber production
forest with diameter 30 cm and 100 cm long.
Stone Carving
As already known, Tabanan and Ubud are famous for the production of
natural stone which is called 'sandstone' (soft stone). The aim of
studying stone carvings is to direct students to understand the characters
of natural stone and forming the stone accordance with their creations
and talent. Instructors will direct the forms they created in accordance
with the rules of sculpture without affecting their desire to create
a form in accordance with what they imagine.
Carving made from different types of stone are often made from rectangular blocks. Since carving is a process of removing material to create the sculpture, it is important to visualize the shape of the sculpture inside the block.