View Full Version : Torque of a servo reduce after its changed from 180 to 360???

12-22-2010, 11:55 PM
If I try to convert a servo from 180 to 360 then will its torque value reduce??? And is it worth it to convert a servo from 180 to 360??

12-23-2010, 09:14 AM
When a servo is not modified, the torque rating is normally the stall torque, unless mentioned separately.
So, in simple terms, a 4kgcm servo means, the servo will NOT lift any weight, greater than or equal to 4Kg, if tied at a distance of 1cm from the shaft.

The torque that is generated, is proportional to the current rating of the motor. So, leaving aside the efficiency of the feedback and driver circuit of the 'Hobby' servo, the torque rating of the motor will not change, if it is modified or not.

But, there will be a slight drop in maximum torque, depending on the pulse width. assuming the resistor divider is centered, and the pulse width is on the far end, the motor will move fast, and the torque at that point will be lesser than the maximum torque available. But then, you will not notice this at all.

It is worth to modify a servo if the application demands. I prefer them, as you do not have to worry about the drivers, and you save a lot of IO lines.