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Unread 30-08-2016, 14:42
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Cory Cory is offline
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AKA: Cory McBride
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Re: Using a 775pro in Dusty Conditions

Quote:
Originally Posted by OccamzRazor View Post
We had an enclosure that was large enough to allow for some air to move around our rs775s but you will not have that in a lunar/martian environment.
As a point of reference, brushed motors wouldn't function on the moon at all, or would fail very quickly if they did. They can work on Mars because there's a thin atmosphere, but they cannot handle the vacuum on the moon. Outgassing of all the lubricants occurs, the brushes can be damaged (the presence of water vapor essentially lubricates the brush-commutator interface. Without it, damage rapidly occurs of graphite brushes), and the outgassing causes increased thermal load which cannot be transmitted to the surroundings well due to lack of atmosphere.

Regolith simulant is also INCREDIBLY abrasive. I would be very surprised if a 775pro held up to it for more than a few minutes here and there.
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Last edited by Cory : 30-08-2016 at 14:45.
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