We report the results of experiments with Bose-Einstein condensates of rubi
dium atoms in a triaxial TOP trap, presenting measurements of the condensat
e fraction and the free expansion of a condensate released from the trap. T
he experimental apparatus and the methods used to calibrate the magnetic tr
apping fields are discussed in derail. Furthermore, we compare the performa
nce of our apparatus with other TOP traps and discuss possible limiting fac
tors for the size of condensates achievable in such traps.