Shears or specialised tools are used to
cut or manipulate the glass while it's still hot. This technique is often used
in the bringing glass process, for creating specific shapes or patterns within the glass.
Process: Shearing involves the use of specialised tools to cut or manipulate the
glass while it's still hot. Tools like diamond shears, straight shears, or
jacks are used to create specific shapes, patterns, or decorative elements
within the glass.
Use: Shearing allows the
glassblower to add details, create openings, or modify the form of the glass
while it's still malleable. Also cutting a piece of glass from a puntil.
Observations: When using shears, glassblowers must carefully cut or
manipulate the glass. It's important to observe the angle and pressure applied
to create clean cuts or desired shapes within the glass.
Cognitive
Process: The
glassblower must assess the design and decide on the placement of shears or
cutting tools. They also determine viscosity of glass, the precise angle and force needed for the
cut to achieve the desired shape or pattern.
Safety Considerations:
- Use appropriate shearing tools
and handle them carefully to prevent injuries.
-
Maintain a clear workspace to
avoid tripping hazards.
Perceptual stimuli:
- Visual Perception: The artist observes the glass
design and carefully positions the shears for cutting or shaping and he observes the glass colour to evaluate the temperature and the viscosity.
-
Tactile Perception: Glassblowers feel the
resistance as they apply force with the shears to achieve clean cuts or shapes.