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analogue clock using stepper motor

Wajiduddaim

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I want to make a analogue clock with stepper motor
The angle movement of stepper motor is 1.8 degree.

So 360 / 1.8 = 200 steps ... Right?

now suppose time is 10:27:38


now if I move motor every second the MINUTE needle should move very slowly and continually and after 60 seconds it should pass one minute distance, for this case what Gare ratio i should use

and

for every second and minute what Gare ratio is suitable for hour needle.


I m using only 2 motors for minute and hour
 

KlausST

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Hi,

many stepper drivers are able to use microstepping method. Thus you get much better resolution than 200 steps per rev.
now if I move motor every second the MINUTE needle should move very slowly and continually and after 60 seconds it should pass one minute distance, for this case what Gare ratio i should use

and

for every second and minute what Gare ratio is suitable for hour needle.

My hour needle takes 12 hours for one revolution.
my minutes needle takes 1 hour for one revolution = 60 minutes
me second needle takes 1 minute per revolution.

do you need more hints for gear ratio? ;-)

Klaus
 

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