View Single Post
Old November 22nd, 2012, 19:56   #26
Anthology
 
Anthology's Avatar
 
Join Date: Sep 2008
Location: Mississauga, Ontario
Quote:
Originally Posted by Kos-Mos View Post
Your com was worn down a lot, and since the water removed the dust from the brushes while turning, it literally grinded them to nothing.

Running the motor on anything over 3V was not a good idea from the start...
Yeah, the other thing that looks strange is it looks like the copper around the commutator separated a bit and caused more grinding? I couldn't get my motor open to look but does this makes sense? It continued to grind and spark out of the water. I'm a pretty big noob when it comes to motors so I hope I explained this well enough.

Yes, running the small 9v battery seemed to do little harm. In the video linked, the guy uses and 7.4 lipo so I though I'd give it a try.

Once I make this video, you may be able to see what I'm talking about in terms of the commutator separating.
__________________

Taylor
Anthology is offline   Reply With Quote