The engine of my V2 Rotor IS SPINNING VERY FAST

SatNOGS
,
1

Hey guys!

I am finishing assembling my V2 rotor using the SHIELD CNC, I managed to start the communication between
Gpredict and the Rotor but I noticed that the rotor is rotating very fast, really!
Does anyone have any hints of what is going on?

Thanks!

2

I assume you’re using the following guide:
https://wiki.satnogs.org/SatNOGS_Arduino_Uno/CNC_Shield_Based_Rotator_Controller
Check to make sure you have the jumpers on the board set for 1/8 micro-stepping

I also had to change the gear ratio to ‘54’ in the sketch to work properly with my steppers

#define RATIO 108 ///< Gear ratio of rotator gear box default 54

3

Hi!
Thanks for answer!
How setting board for 1/8 micro-stepping?

4

Hi again jp_polito,
Just want to say well done on getting rotor moving.
This is a great step forward.
You will have to do some study on micro-stepping.
Each case may be different.
Also I must have changed my setup gear ratio to ‘54’.
Steve
VK4SMC

2 Likes
5

As I remember My four rotators working in FULL STEP and 54 Gear Ratio,
https://www.youtube.com/watch?v=tcdItBsMnC0
You can change some values on speed acceleration also
IZ5RZR