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Author Topic: Strange behaviour after changing Stepper Motors.  (Read 1819 times)

rvaneynd

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Strange behaviour after changing Stepper Motors.
« on: November 28, 2017, 09:34:54 »

Thom,

I have changed my Stepper motors from 1.8 to 0.9. I have reconfigured the AstroEQ and all seems to be working fine.
However there is one strange little thing I have noticed and I, which never happened using the old 1.8 stepper motors.

When I slew to a new target, the slewing works fine (a bit slower than the 1.8 motors but that is fine). The strange thing I notice is when I slew between different targets on the other side of the meridian. E.g. slew from Rigel to M42. What happens is that the mount (and AstroEQ) first slew back to the meridian and then to the target.

I never had this with the 1.8 motors.

Any idea what might cause this?

Raoul.
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TCWORLD

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Re: Strange behaviour after changing Stepper Motors.
« Reply #1 on: November 29, 2017, 00:43:39 »

Sounds like EQMOD mount limits.

To avoid crashing the scope into the mount, EQMOD sometimes moves the scope in weird ways.
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Tom Carpenter (AstroEQ)

rvaneynd

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Re: Strange behaviour after changing Stepper Motors.
« Reply #2 on: November 29, 2017, 09:20:01 »

Tom,

Possible.

Raoul.
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