Motor focuser

[robd1701]

Hi guys. 

A cool diy project for you. A cheap motor focuser made from 2 RC place servos. Open both servos and remove all the electronics exept the motor. Next you need to find the stopper that prevents the servo from spinning 360°. Solder a cable from positive to positive and negative to negative. When you rotate one servo, the other one rotates as well. Fix one to the scope and attach a rubber band from the servo to the fine focuser. Turn the other one and it moves the fine focuser. Job done.

[Kropster]

That is marvelously simple!

Do you think the leads could be made longer, say 10 to 20 metres?

[lux eterna]

2 hours ago, robd1701 said:

Hi guys. 

A cool diy project for you. A cheap motor focuser made from 2 RC place servos. Open both servos and remove all the electronics exept the motor. Next you need to find the stopper that prevents the servo from spinning 360°. Solder a cable from positive to positive and negative to negative. When you rotate one servo, the other one rotates as well. Fix one to the scope and attach a rubber band from the servo to the fine focuser. Turn the other one and it moves the fine focuser. Job done.

 

 

That is genius ! Respect !!

Would it be possible to remove the stopper and spin without limits as well ?

Ragnar

[robd1701]

3 hours ago, Kropster said:

That is marvelously simple!

Do you think the leads could be made longer, say 10 to 20 metres?

I'm not sure about that long but there is no harm in trying