My servo is having a seizure!


I am new to ROV’s and am assembling a 2.8. I am near the end, at the point where I’ve hooked up the USB and ethernet cables to set the camera/laser etc. I will have it plugged in for a few seconds and the servo pushes the camera up to the top then it just stutters there like crazy. Any suggestions? I am a total rookie so not sure what to do. Thanks in advance.


It might be that you don’t have the servo arm aligned correctly. When the ROV first wakes up it tries to position the camera in the middle of its tilt range. It does this by putting the servo to the middle of the servo’s travel range, but if the servo arm is not positioned correctly, the middle of the servo travel does not equal the middle of the tilt range.

Go to the Dozuki instructions for 2.8, Guide #3, and check carefully that step 37 (centering of the servo horn) was done correctly.

If that doesn’t work, then we can move on to trying other things.



Hi Walt, thank you for responding. I thought I did that correctly but I am checking again. I’ll let you know how it goes, fingers crossed.