Why my 737 flap gauge does not spin more than 180°?

Question

Guys,

First of all thank you for this amazing service!
I tried to calibrate my first gauge. I am about to create my first panel (which I designed).
The problem is that the gauge can't spin beyond 180°. The servo CAN do that but Simvim range for the gauge does not allow me to go up to 270° (as it is supposed to do).

How can I solve this problem?
Thank you in advance for your kind help.
Luca

Answer 1

Hi, the servos do not move more than 180 degrees of rotation.

https://i.ibb.co/ZBqTSfS/Servo-needle.jpg

you need more degrees of rotation

https://i.ibb.co/C77nHmv/needle.jpg

Must use stepper motor like x27168

https://i.ibb.co/pXZFRz9/X27168needle.jpg

I hope these images clear your doubt about it

Milton Rodriguez.

Answer 2

Luca,

In addition to Milton's notes:
If you want  to use a servo you can add  step-up gear as described here:

http://simvim.com/tech_servo.html

Vlad

Comments

Hi Vlad, this is new for me in SimVim, a good solution to the limit of rotation of servo motors, how much would be the maximum angle in degrees of rotation needle with the gearbox?

Milton Rodriguez.

** Adding external step-up gear (e.g., 1.5:1 or 2:1 ), Gear ratio can be from 1.5/1 to 2/1 to extend the servo rotation angle by 90-180°. Do not make the rotation angle of more than 360°. **

I just found out thanks Vlad

---

Milton,

Actually  this page (with step-up gear) was presented on our old website long ago, in relation to ArdSim 3  (even before ArdSimX), 5 years ago...   

Vlad