Gear door and retract installation
Create hinge pins from
the 2mm welding rod and
install the gear doors.
Glue stops from scrap
plywood and trial fit
hooks for two rubber
bands. Even though this
seems a very simple
method to keep the gear
doors closed, it is a very
efficient one. The
retractable gear is
designed to open the
doors against the spring
loading with the steel
loop in front of the
wheel.