I mean press the T button in explorestars which puts the mount into point mode not park.
The sound is caused by a resonance that seems to happen with the motor assembly and the pulses driving the stepper motor. At least that has always been my theory. See if they
Change in P mode.
Wes, Southport NC
EXos2-GT PMC-8, iExos 100
ES ED 127, 10" LX200GPS+wedge, Astro-Tech 8" Newt, ETX-90, 60mm no-name guide scope ~ 260mm FL
Polemaster, Orion ST-80 and SAG, ZWO 290MM, D5300 astro modified
Nina, Bootcamped Mac Mini control computer, RDP to iMAC
110 amp hour lead acid deep discharge battery for field power
Electrical Engineer, Retired