This setting affects the radius of sticks in the sticks representation. Default scale is set to 0.25.
set_bond stick_radius, ''size'', selection
- size can be any float number. Using 0.25 (default value) is usually appropriate for most representations, although 0.15 migh be preferred for comparing closely related structures, e.g., conformers.
by itself will revert to 1.00.
If the above commands do not work
You can do something like below
To set on the entire object set stick_radius=0.12 OR create myObj, <selection> Ex : create myObj, hetatm set stick_radius,0.2,myObj