[simpits-tech] Simpits-tech Digest, Vol 128, Issue 5

[geneb]

On Mon, 7 Apr 2014, Justin Messenger wrote:

>> Keep us posted, I am curious as to how this goes. My biggest concern
> with steppers is, what if the instrument never gets around (or takes a
> long time) to the "home" sensor? Ergo, you might have a sensor at 0*,
>> but if your HSI (for instance) runs for 2 hours on a long flight and
> never goes beyond the range of, say, 180* and 270*, will a stepper keep
>> its position well enough to not "drift" the HSI? What sort of sensors
>> (and how many) do 3D printers use?

>   Dont most HSI's have a knob for correcting gyro drift? it gives you a 
> (good) reason to check the compass. I know, its stepper would drift too.

If you've got a stepper driven HSI that drifts, it's drifting because 
something is telling it to. :)

g.

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