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RC Avatar Scorpion V2

3D model description

New Design of AVATAR SCORPION. It's lighter, more cooler and easier to change battery.

Motor (2 pcs):
Some Alternative links for motor here (choose around 2400KV version):
ESC (2 pcs):
Flight Controller (1 pcs):
Servo (2 pcs):
Links Servo (1.3mm - 4 pcs):
Rx XM+ (1 pcs):
Tx Qx7 (1 pcs):
Carbon Tube (OD 8mm. Please note to choose 8mm OD tube):
Alternative Link:
(You need 2x10cm and 2x14cm of 8mm OD Carbon Tube)
Bearing (4 pcs):
M2 Screws (25 pcs 10mm):
M2 Nuts (4 pcs):
M3 Screws (2 pcs 16mm and 4 pcs 12mm):
M3 Nuts Nylon:

Video assembly:
Video assembly detail (previous verion):
Video setup:
(I hope you can contribute better PID. THank you!)
Video flight test:

3D printing settings

  • Software setting: Ultimaker Cura 4.1.0
  • Printer: Anycubic Kossel Plus
  • Material: PLA 1.75mm
  • Nozzle: 0.4mm
  • Largest Object size: 187.4 x 76 x 67.2mm and 126.2 x 137.3 x 178.7mm
  • Layer Height: 0.2mm
  • Wall/Top/Bottom Thickness: 0.8mm
  • Infill: 10-20% (For Body: Arm, lock Arm, Lock Servo Set Infill 20% | For Body: Head, Head Lock, Hold Mainboard Set Infill 10%)
  • Printing Temp: 200 C
  • Plate Temp: 40 C
  • Enable Retraction: Retraction Distance: 6mm; Retraction Speed: 40mm/s
  • Printing Speed: 30mm/s
  • Cooling Fan: ON
  • Support: For Body with Support I've already created NO NEED SUPPORT. For Body without Support, Turn Support "ON"; set overhange angle to 80 (Only Body Arm, Lock Arm, Body -3 need Support, Remaining NO NEED)
  • Travel (Important): Turn Combing Mode in Travel section to OFF.
  • Build Plate Adhension: Brim

NOTE: Position of printing object should same as picture shown

About version of flight controller. Newer version of flight controller might not good. You can keep default version from manufacture (It's seem to be 3.2.0). My version is: OMNIBUSF4SD (OBSD) 3.2.0 Sep 28 2017 (I did not flash firmware to newer version since I bought it). You can find my dump file here:
Here is link for older version if you want to downgrade version of FC to 3.2:
You find the file: OMNIBUSF4SD.hex, download it, then in betaflight flash it by "load firmware [local]" choose the file .hex you just download to flash

  • 3D file format: STL



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thx for this model ! good job ! 6 inch propellers would not be more realistic compared to the real avatar scorpion?

HI, I'm putting together the parts to build the V2 Scorpion. Unable to get the Emax RS11 motors anywhere as their all out of stock.
How do the alternate motors Emax Eco perform ? they are a third of the price. Any other alternatives ?
Steve B

Hi Chobson 303,

Body Arm, Lock Arm, Lock Servo, Hold Mainboard flight controller are the same for both models

I want to build Version 2, but I just finished printing Version 1. Are there similar pieces in version 1 that I can use to build version 2 with out printing the whole version 2?


For both model you can move battery to change CG by moving battery. BUT in model V2, my 4S 1300mah battery weight is 165g, it's seem a little bit nose heavy even when I move it very close to the body center. So I suggest to reduce more weight of Body Head, Lock Head by using LW PLA or find lighter battery for better CG

I will get some light PLA and make scorpion 1 with it. I could compare with the one I finished printing last night.
for me the only part which must remain very solid and where efforts are concentrated is the part which supports the carbon tubes and the servos because the engine support arms surely transfer great efforts to it!
centering is extremely important on a machine of this type. Can we play on the CG by moving the battery ??


Weight not reduce much as I expected. I test many version try to reduce more weight but the more weight I reduce the less stable of frame body, So the last version is only 70g lighter, the flight time not increase much . Now I here that there is light weight PLA, I dont have this filament to test, hope someone can try to figure out how much weight we can save, But should not save weight of Body -2, Body -3, because it will change CG a lot

thank you for your quick reply.
has the weight of the machine changed as expected?
the flight time is increased by how much?
Thank you for your achievement which is exceptional !!
You are a true artist !! you have all my respect.
I will buy the files of the second device and realize it following the first!
have a good day !


Sorry that parts could not interchangeable, V2 is different model, I redesign all parts only body arm is the same

I am in the process of making the first version.
Are the parts interchangeable?
Does the front with the canopy that opens fit on the first model?
Thank you !


Please comment in English! I dont know French

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