Whirlygig 3" 4S Tricopter

By 1Smug_Bastard on Jun 04, 2019

8  224  3

Remix of the original Whirlygig 2" to reduce flex and improve flight performance. Copter arms are teardrop shaped to allow for better airflow.

Thanks to the removal of the Servo-holder, the entire print is done inverted and thus print supports are no longer needed!
From this point on, a single Nylon M2-screw is used thru the frame to support the Servo via its tab.
(as needed a Zip-Tie can still be used to provide additional support)

Notes:

  • Weight with battery 117 grams with 4:1 TWR.
  • Emax 1106-4500kv motors are set to a Throttle Multiplier of .52 effectively running at 2340kv.
  • Frame Printed from Nylon / Carbon mix with 0.4 mm print head.
  • 2.5 mm wide zipties used.
  • Microcam / VTX not yet installed. Should manage this by the end of the week if all goes well.
  • For those interested in aquiring the frame, please msg me directly.

Photos

Discussion

Sign in to comment

Jodie Froster   13 days ago  

Sick man, profiling the arms like that is right on time!

1Smug_Bastard   12 days ago 

Thus far its much stiffer than the earlier 2” whirlygig and has tons of power. So much so, i have to scale the motor back by half. Yet still the TWR is 4:1 !

Only issue i have this far is that the DYS 4-in-1 F18 ESC is garbage. Dam thing has had issues from the very first moment. Everything from it not keeping Sync with any protocal other than dShot-300 to motors that sputter in flight. Will replace with an Aikon unit tomorrow. Motors ohm out fine so i dont really have any other option but to toss the DYS.

Edit: Powered up the Aikon ESC alone to have it short out instantly! (WTF)

Jodie Froster   9 days ago 

Brutal.

Guides & Reviews

26 2,080  23
17 days ago

A couple years ago I built the TransTEC Frog and since then I've been patiently waiting for another TransTEC frame to catch my eye. Fast forward to today and the TransTEC Laser S is that frame. It's a 82g racing frame that features 6mm arms, a TPU micro cam mount, 30.5mm and 20mm stack mounts and 3K carbon and 7075 hardware. My goal here was to build a high quality 6S racer at a reasonable price. I'd..

Read more
59 8,171  91
Apr 17, 2019

This is the 4th installment to my popular "Wizard Killer" series, and is based on the popular Wizard X220HV 6S. As usual, the goal was to build a substantially better quad, yet come in below the retail price of the BNF kit. Here are some of the improvements: Higher quality EMAX ECO 2306 1700kv motors Foxeer's top-of-the-line Falkor mini camera Eachine 25mw-1000mw Leaf VTX with microphone Tools This..

Read more