New experimental impossible tilt for the BabyTri

[Kevin_Erik]

Completed the 6S Flight today with the Impossible Tail Mech installed.

6S Tri-Baby build (Matek F405-AIO)

[Kevin_Erik]

Had a crash earlier today where the prop nut and propeller from the Tail assembly came off.

*** No damage to the Servo! ***

The Tri was completely flyable once the propeller was reattached.

[Kevin_Erik]

Several dozen flights and several crashes… Not one damaged Servo!

[Terje]

I’ve updated https://www.thingiverse.com/thing:2869393/ with a back holder with better clearance.

I’ve updated https://www.thingiverse.com/thing:1035497 with a back holder with indicator, 2217 (better for the 2208) and 2205 motor cups. The 2217 is as large as it can be, and you’ll need to omit one zip tie to make it work. Shouldn’t be a problem though.

[Kevin_Erik]

After 50+ flights, I finally had a Servo fail (gearing) but not due to crash or collision. Looks like the gears may of lost a tooth or have a bent shaft. These are bound to wear out after a while so this was to be expected.

Now I can safely say that the Impossible Tail Mechanism is far superior to the standard release.
Awesome work Terje!

[Terje]

Thanks for testing. I’ve updated the design to be used with the 2208 and 2217 motors (same mount). New back holder with more clearance for the babytri, new back holder with indicator indent on the Mini and V4.

[Terje]

Thanks for testing @Kevin_Erik! Were you using the “old” metal gear servos, or the steel version?

[Kevin_Erik]

@Terje

Stainless-Steel Version. BMS-210D

The Servo still “works” mind you, just need to swap out its gear set. For the test method, I few it extremely hard (6S-LiPo) hitting the Tail-Mech with as much stress as possible to try to force the Copter to oscillate. Over 50 short flights (30-60 seconds each, 8-10 flights per pack) this was performed using high Roll / Pitch maneuvers, then counter Roll / Pitch over and over again. This seems to create more stress on the system than simply Yawing Left or Right. The short flights allowed the Motors to cool, while I evaluated the overall condition of the Copter. Keep in mind that the stresses I placed on the Copter, go way beyond what someone would encounter during normal flight or even freestyle for that matter. They’d have to be running with a profoundly bad tune and or poor balance to even come close to the stresses created.

Note(1): I crashed quite a bit too but the servo kept singing.
Note(2): Tail Mech printed from Nylon / Kevlar mix.

[Author]

Posts