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M o d e l N o . M E- 7 0 0 3
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A n g le C r a n e
47
Angle Crane
The Angle Crane is one of the largest structures to be built with the Large Structures Set. The crane’s boom can be
raised or lowered using the Hydraulic Cylinder and other parts from the ME-6984 Structures Hydraulics System
(available separately). The Angle Crane has three main parts: Boom, Tower, and Base. The Tower is joined to the
Base by an axle mounted on the Base, and the Boom pivots on another axle near the top of the Tower.
Use two #3 Beams and a Straight Connector to make ten extra #5 Beams for the Base and Tower. The hook on the
end of the cord is a 20 g mass from the Hooked Mass Set (SE-8759). Slotted masses on the back of the base are
counterweights for the Tower and Boom, and forces in the Tower and Base are measured by 100 N Load Cells
connected to a Load Cell Amplifier. The Base width is a #4 Beam, the Tower width is a #3 Beam, and the Boom
width is a #1 Beam.
Legend:
AC = Angle Connector
CT = Cord Tensioning Clip
F4 = Flat 4 Member
FR = Full Round Connector
FT = Flat Round Connector
HR = Half Round Connector
SL = Sliding Connector
ST = Straight Connector
Boom
Tower
Base
#4
#6
#5
#5
#5
#5
#5
#3
#4
F4
#3
#3
#3
#4
F4
#3
#3
FR
AC
#6
AC
Medium Axle
Pulleys
#5
#2
ST
Medium Axle
Pulley
AC
F4
#4
F4
F4
F4
#3
#3
#3
#3
#3
#6
ST
#6
#3
#6
#4
#2
#1
#4
AC
AC #1
Short
Axle
Pulley
#4
Long Axle
Long Axle
Load Cell
#3
20-g mass
HR
#4
Load Cell Amplifier
Load cord
Figure: Angle Crane
Cords from
Hydraulic Cylinder
Cord (CB)
CT