The delivery unit is the most important module that consists of fiber holder,
tensional device, rollers guide, resin bath (with three rollers), carriage, lead screw,
lead screw holders and a stepper motor. Fiber holder is used to store fiber roving.
For the automated fiber winding machine, wet winding method is used. Hence, fiber
will pass through a resin bath before it is fed onto the mandrel through the carriage.
The carriage was made from low friction polymer. It consists of a roller and two
polished screw eyes which are used as a means to guide as well as to provide
tension to the wetted fiber before reaching the mandrel. Lead screw generates
rotary-to-linear motion transmission [5] after actuated by the stepper motor to move
the carriage linearly. Apart from that, the eyes are used to smear off excess resin
from the wetted fiber after passing through the rollers of the resin bath.