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Author Topic: Quiet EQMOD Slews, Loud GOTO's  (Read 3044 times)

cuivenion

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Quiet EQMOD Slews, Loud GOTO's
« on: March 05, 2016, 05:21:20 »
HI again, I've finally got my Astroeq up and running. I've been playing with it indoors to get used to it and discovered when I slew with EQMod that there is just a quiet whine from the motors, even at 800x speed.

When I goto using Stellarium it is much louder even when I have the goto speed 100x. I'm testing the mount unloaded for now. The best way to descibe this sound is vibration/rattle.Is there anything I can do to make this quieter?
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cuivenion

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Re: Quiet EQMOD Slews, Loud GOTO's
« Reply #1 on: March 05, 2016, 05:50:49 »
Scratch that. Apparently 800x goto is much quieter so I'll just use that.
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TCWORLD

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Re: Quiet EQMOD Slews, Loud GOTO's
« Reply #2 on: March 05, 2016, 15:06:37 »
Hi,

Just the natural sound of stepper motors. They do like to hum and click. When everything is mounted and there is a load on the shaft it may get a little quieter, but the good thing about astro stuff is sound pollution doesn't affect the pictures/viewing.

It will be louder on Go-To movements as the motors are switched into a larger ustep mode (e.g. they go from 1/32 in slew to 1/4 in goto). This is done to achieve a higher torque so higher speed movements can be performed.
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Tom Carpenter (AstroEQ)