Hi
I have just received my new WarpAstron WD20 and I am just testing it out. All the reviews say it is silent when slewing. The DEC axis is pretty silent but the RA makes a mechanical clicking (graunchy?) sound. This could be normal but it is completely different to the DEC axis.
This is unloaded and I am only using the hard controller.
Here is a video where you can hear it (you do need the sound up).
wd20-comp.mp4
Many thanks
Chris