Im sure many people have a ZMR frame or 2, maybe even some broken arms, or they have just moved on to a better full carbon frame. I have found the ZMR frames great and easy to change the layout for custom builds like I did in these builds.
I found myself in both camps, I moved a ZMR build over to a EMAX full carbon frame for my learner FPV rig. This left me with a spare ZMR frame, so I got to thinking ... which is always dangerous.
I love tricopters and after unsuccessfully reducing the size of my Titan tricopter I decided to try and make a tricopter out of a ZMR frame. This is the hightlights reel.
The full build log here : (to lazy to completely reproduce here)
http://www.bluefish.net.nz/2015/06/zmr-frame-mini-tricopter.html
Heres a quick video of the finished version:1 flying.
This is the completed little beast. The key parts ot the design are the customised tilt assembly.
Firstly a huge shout out to David Windestal, Captain Tricopter !!. He designed and made public under CC Licensing an awesome 3D printable tilt mechanism which is the basis for the tilt assebly in this little tricopter.
I modifed the 3D print to allow the tilt assebly to be zip-tied to a ZMR arm. I also changed the motor mount to have a thicker top plate and a recess to allow the use of servo arms as my 3D printer didnt do a good job of the built in spline. This also allowed the use of differnet servos.
Next was a Servo holder to have the servo at the right level and easily mounted to the ZMR frame. This first build is using a TGY-9018MG servo
It just slides on and is Zip-tied in place.
Already for the electonics.
Its a tight fit but you can get everything in.
Not to bad on the weight either.
3D Files all on http://www.thingiverse.com/
For a TGY-9018MG servo setup
http://www.thingiverse.com/thing:889866
ZMR250 Arm protectors
http://www.thingiverse.com/thing:563190u
UPDATE
Now have design to allow the use of Davids molded motor mount and recommended servo the TGY-210DMH
more information here http://www.bluefish.net.nz/2015/07/zmr-tricopter-update.html
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could this be an advantage for racing?
is this is a gamechanger for basic quad design?
do i ask too many questions?.....yes!
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Tricopters are a little more complicated to setup due to the servo and the tilt assembly. The tilt assembly is also a durability concern, how well will it stand up to the constant crashing. I plan to find that out ;) The next upgrade is to a much stronger servo, so we will see how the durability thing goes.
I just like the swishy feel of a tricopter. I do plan to put FPV gear on it once I can actually fly FPV. I hope my answer was of some help.
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thanks
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