servo degrees question

[gkatz]

hi all
servos have the degree of operation (usually, 120/180/270/360)

I have a few questions regarding this:
1. I have seen a servo with 180 angle badge but states that it has a "remote control angle of 90-120" what does this mean? how is it a 180 servo then? (example: Injora INJS014 )

2. do RC buggies like tamiya kyosho etc can benefit 180 servos? or will they work fine with 120 or even 90 (without affecting the possible range of steering that the buggy allows)

2. if I understand correctly the math, assuming i put a servo whos full range of operating degrees is "ok" with the buggy (such that no EPA is needed). if I do a trim/subtrim this will make the left\right operating endpoints to be uneven? . is this correct?for example: if I have a 120 degree servo, and I trim 3 degrees, than one side will have a lesser turn and some side a bigger turn (117 and 123 respectivaly)

thanks for your explanations.

[alvinlwh]

.

 

[Pylon80]

On 1/10/2024 at 12:42 AM, gkatz said:

2. if I understand correctly the math, assuming i put a servo whos full range of operating degrees is "ok" with the buggy (such that no EPA is needed). if I do a trim/subtrim this will make the left\right operating endpoints to be uneven? . is this correct?for example: if I have a 120 degree servo, and I trim 3 degrees, than one side will have a lesser turn and some side a bigger turn (117 and 123 respectivaly)

The point of sub-trim is to adjust the center without changing the end points. So do not worry about the end points changing. What I wrote above was verified on a Tx system that does have both EPA and sub-trim (Hitec).