Customized version of http://www.thingiverse.com/thing:53235

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=53235

Using the following options:

pulleySnapL = 1.2
midBigTeeth = 20
gearH = 3
MusicCylinderName = test song
crankDirection = 0
crankAxisHolderH = 1.55
E_PLA = 8240000
GENERATE_CASE = 1
MusicCylinderNamePosition = 0
GENERATE_CRANK_GEAR = 1
GENERATE_CRANK = 1
snapAxisSlack = 0.35
pinNrY = 35
pinNrX = 13
crankAxisCutAwayH = 4
crankSlack = 0.2
MusicCylinderNameFont = write/Letters.dxf
diametral_pitch = 0.6
teethHolderH = 5
teethHolderW = 5
gear_tolerance = 0.1
pinD = 1.5
pinH = 3
pins = X____X__X____X____XXX__XXX____X____X_X__X__X__X____X____X_XX____X__XX____X__X__X
MusicCylinderNameDepth = 0.6
musicCylinderTeeth = 24
crankExtraH = 4
noteAlpha = 5
GENERATE_MUSIC_CYLINDER = 1
midAxisHolderH = 3.3
GENERATE_MID_GEAR = 1
baseFrequC0 = 16.3516
gear_hold_R = 4
midSmallTeeth = 8
pulleyH = 10
DEBUG_GEARS = 0
pulleySlack = 0.4
axisSlack = 0.3
FOR_PRINT = 1
gammaTooth = 1.875
pteethMinD = 1.5
teethNotes = C 0C#0D 0D#0E 0F 0F#0G 0G#0A 0A#0B 0C 1C#1D 1D#1E 1F 1
wall = 2
GENERATE_PULLEY = 1
midGearAngle = -5
crankTeeth = 8
ro_PLA = 924
$fn = 32
musicAxisHolderH = 3.4
crankLength = 18
gear_min_gap = 0.1
crankGearAngle = 15
crankAxisR = 3
MusicCylinderNameFontSize = 8
gear_gap = 1
epsilonCSG = 0.1