Customized version of http://www.thingiverse.com/thing:1879518

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=1879518

Using the following options:

insideBearingRadius = 6
outsideBearingRadius = 6
numberOfLegs = 3
vPlay = 0
curveSizeAdjust = 0
curveScale = 1.5
curveOffset = 0
hThick = 2
bearingHeight = 5
hPlay = 0.1
roundness = 1.5
legLength = 30