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PostPosted: Nov 3rd, 2013, 10:46 am 
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Joined: Oct 20th, 2012, 10:59 am
Posts: 11
I'm looking at using 12volt, 1000rpm brushed gear motors and am wondering about the pros and cons of running the prop shaft through a stuffing box, similiar to this, http://letsmakerobots.com/node/19254

Also, since this is a low rpm motor, I should be using a bigger prop. I would like to keep the amp draw lower than 10, any ideas as to a good sized prop? I was looking at 4 or 5 blade props between 2-3 inches, but im just guessing. Thanks!


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PostPosted: Nov 6th, 2013, 12:49 pm 
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Joined: Nov 8th, 2010, 10:25 pm
Posts: 528
Location: Connecticut
I think using a stuffing box might lead to problems. At any great depth I think the grease is probably just going to get pushed out. I've experimented with this concept when just starting out (many years ago) and didn't have any luck with it. I think using o-rings or seals is a better route.

Can't really help you on prop size everything I've done with props was always on trial and error.

-Steve :sting:


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