Telescope drive motors that don't...

[mvs_sarma]

Well, i'm really not a Motor Driver pro... so i would suggest you to increase the pulse length and see if it does anything better.

40mA measurement is not revealant, it's pulse measurement, it give an average of the whole thing, not the peak.. unless you're using something else fancier than a regular DVM.

6 Volts to a regular LM7805 input may cause stability problem, if my memory serves me well, Min Vin should be 'round 9 Volts.

i find that 293D needs a minimum of 7V for Vs or Vss. this should be sorted out by him first. there should be no issue to supply 8 or 9V and be happy with 7805.

If he can go for low consumption, some Low drop out regulator like LM2931-5 can be used and then 6V might work, but the current demand should be within the regulator spec