ATLAS LEGO model – Construction manual – Muon Spectrometer – Big wheels

The big wheels are comprised of three kinds of sets representing: 1) the actual muon chambers and a wheel-like supporting structure for both 2) the inner and 3) the outer big wheel.

The support structure for the inner big wheels comprises 362 pieces.

Description Quantity
black angle cross/round rod 14
black angle cross/cross rod 24
black connect angle cross/round rod 16
black connect cross rod 30
black cross rod 2 64
black cross rod 4 2
black cross rod 6 16
black cross rod 8 16
black joint fork cross rod 32
black joint stump cross rod 32
light grey angle 90 cross/cross rod 8
light grey bush cross rod 96
light grey cross rod 3 10
yellow connector peg 2 round/cross 2
  • the first piece shown has to be build six times for each wheel
  • the second piece, almost identical, needs to be build two times for each wheel
  • both, the third and the forth piece, need to be build eight times for each wheel
  • for the latter the ‘black angle cross/cross rod’ needs to sit roughly centred

The support frame for the outer big wheels is made of 360 pieces.

Description Quantity
black angle cross/round rod 18
black angle cross/cross rod 32
black connect angle cross/round rod 16
black connect cross rod 28
black cross rod 2 64
black cross rod 6 16
black cross rod 8 28
black joint fork cross rod 32
black joint stump cross rod 32
light grey angle 90 cross/cross rod 8
light grey bush cross rod 80
light grey cross rod 3 2
light grey connector peg 2 round 2
yellow connector peg 2 round/cross 2
  • the first piece shown has to be build two times for each wheel
  • the second piece, almost identical, needs to be build six times for each wheel
  • both, the third and the forth piece, need to be build eight times for each wheel
  • for the latter the ‘black angle cross/cross rod’ needs to sit roughly centred
  • the long rod needs to be build twice

The muon chambers in each of the four big wheels consist of 16 segments of three different types.

The first type of muon chambers, featured eight times in each big wheel, consists of 14 pieces in total.

Description Quantity
white brick 2×2 round 2
white tile 2×4 left angle 1
white tile 2×4 right angle 1
white tile 2×4 1
white tile 2×12 1
white tile 3×8 left angle 1
white tile 3×8 right angle 1
white tile 3×12 left angle 1
white tile 3×12 right angle 1
white tile 4×6 1
white tile 6×6 2
white tile 6×8 1

The second type of muon chambers is featured four times in each big wheel and only differs by two pieces from the previous type.

Description Quantity
white tile 2×4 left angle 1
white tile 2×4 right angle 1
white tile 2×4 1
white tile 2×12 1
white tile 3×8 left angle 1
white tile 3×8 right angle 1
white tile 3×12 left angle 1
white tile 3×12 right angle 1
white tile 4×6 1
white tile 6×6 2
white tile 6×8 1

The third type of muon chambers, noticeable by the recess, is featured four times in each big wheel and situated both at the feet and the top interconnection. It is build from 12 pieces.

Description Quantity
white tile 2×4 left angle 1
white tile 2×4 right angle 1
white tile 2×4 1
white tile 2×12 1
white tile 3×8 left angle 1
white tile 3×8 right angle 1
white tile 3×12 left angle 1
white tile 3×12 right angle 1
white tile 4×6 1
white tile 4×8 1
white tile 6×6 2