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This quadcopter was dismantled on 8.12.2014 after 144 flights due to the degraded condition of the frame. Replaced with String Theory Quadcopter.

Crab 20 Quadcopter

Frame BambuCopter Crab 20
FC Naze32
Motor T-Motor MT1306 3100KV x 4
ESC Turnigy Plush 6A x 4
Prop GemFan 5×3 x 4
Receiver FrSky TFR4-B
Battery Turnigy nano-tech 2S1P 950 mAh
Weight 145 g
192 g (with battery)
M2M 20 cm
Flight time around 6-8 minutes



  1. The frame material doesn't like threadlock so don't use
  2. Don't overtighten motor screws since that may cause the frame material to crack
  3. Short motor shafts equal low spinning propellers, watch your fingers when hand testing

Motor benchmark

The following motors were tested for this build:

  • C10 2900KV with 5×3 prop (HobbyKing)
    • weight with prop: 12 g
  • T-Motor MT1306 3100KV with 5×3 prop (Flyduino)
    • weight with prop: 14 g

The same motors using a 4×2.5 prop are shown as reference in the image.

rc/crab-20-quadcopter.txt · Last modified: 19.06.2016 13:18 by vergo