|Jun 22, 2010, 12:33 PM|
Make your own CFK firewall/motor mount for electric gliders
I recently decided to build two small electric gliders that I have had since the mid 90’s and never got around to building. These initially had plywood motor mounts up front to facilitate mounting brushed motors w/reduction drives.
I soon realized the two AXI outrunners that I purchased would not fit as the three wires exiting out of the side of the motor would not fit within the nose ring so far forward. I saw some solutions in various forums where guys would drill a hole in the side of the fuselage for the cables to exit and then another one a bit further aft for the wires to renter the fuselage to be connected to the ESC.
I preferred to flip the motors and mount the prop on the rotating (magnets) can with the appropriate adaptor so that the motor wires will now exit at a point where the fuselage has widened substantially and can accommodate them easily. This however called for a new relocated firewall/motor mount.
The result is extremely light and very strong, giving a smooth true running motor. (I was pleasantly surprised by how smooth and powerful these AXI’s are)
The photos should be self explanatory and I hope that this “how to” may be of some use to somebody with a similar need.
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|Jun 22, 2010, 05:39 PM|
USA, CA, Los Angeles
Joined Sep 2004
Nicely done! I usually struggle to hot glue the motor wires to the side of the fuselage and am forced to use smaller diameter, less powerfull motors to get enough clearance. One note, though, with the mount so far back from the prop, vibration from any imbalance in the blades would be amplified. With careful assembly and blade balancing, this should be a winner.
Thanks for sharing,
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