As a rule of thumb we here in Europe say you need at least 1000uF per Amp for the cap. Running a 60V motor @ 24V is really a waste. Better buy suitable 24V servo's or upgrade your PS. Problem is to get 60V dc under load your non load DC voltage will be dangerously close to the voltage limit on your cap.
DC voltage unloaded is ~1,4 times AC rated voltage of transformer
DC voltage loaded is ~1,2 times AC rated voltage of transformer
This means you'll need a 50V secundairy transformer that'll give you 60V DC under load. 50x1,4 = 70V is near 75V of cap.
Overloading cap is nice fireworks display :bat:
Erik Jan
What goes down, should come up.