Modified 2_and_half_inch_metal_u_strap module to match
galvanized_angle_1 hole spacing, as seen on the actual parts.
Models of various types of bolts and screws.
Models of various types of swivel and ball casters.
Models of various types of batteries.
Models of various types of PVC pipe and related fittings such as elbow
and tee joints.
Models of various types of wheels, with and without bearings in the
hub.
Models of various types of project enclosures.
Models of various useful hardware components.
Model of the build plate of the original Makerbot Replicator, used to
determine if a model will fit on the plate.
Added module for 3/8" x 5/8" hex bolt.
Added a module for a spring to the scooter chain tensioner.