2.5 Inch Stiffie

By The Dave on Oct 13, 2018

11 14 2

Got this frame coz it is pure art... and coz it is as stiff as you can get.

Haven't actually flown it yet...

Frame pros:
Beautiful.
Stiff.
Robust.
Thin arms.
Can go to 3 inch props.

Frame cons:
Pricey.
Weighs 5-10g more than the competition.
Can just see the frame in the camera. Camera needs to be 1-2mm less deep.

Future:
May try with 2.8/3 inch props if lacking in power.

Photos

Part List

Frame	Rakonheli CNC Aluminum 3inch Kit - EMAX Babyhawk R Rakonheli.com	$49.99
Flight Controller	HGLRC F4 Zeus F4 Flight Controll AIO 15A BL_S ESC & TX20 V2.0 48CH PIT/25/100/200/350mW VTX Banggood.com	$90.99
Motors	4 x Sunnysky R1106 5500KV 6500KV 8000KV Brushless Motor Blue for 2030 3020 Propeller RC FPV Racing Drone (19 builds) Banggood.com	$50.04
Propellers	6 Pairs Emax AVAN Mini 3 Inch 3X2.4X3 3-blade RC Drone FPV Racing Propeller CW CCW (65 builds) Banggood.com	$6.74
Propellers	4 Pairs Gemfan Flash 2540 2.5x4 2.5 Inch 3-Blade Propeller with 1.5mm Mounting Hole (172 builds) Banggood.com	$4.11
FPV Camera	Foxeer Monster Micro Pro 1.8mm 16:9 1200TVL PAL/NTSC WDR Low Latency FPV Camera (33 builds) Banggood.com	$30.99
Misc Parts	10 PCS IFlight M2*4 M2 Anti-Vibration Washer Rubber Damping Ball for Flight Controller RC Drone Banggood.com	$2.75

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Discussion

airrage 13 days ago

Can you confirm 3inch props fit this 2.5inch frame as well. Im about to order

sergetania Oct 13, 2018

Looks sharp! You should not have any problems with performance. I have a drone of similar weight with similar motors and it flies well with 2540 props. I am curious about two things - the durability of the frame and how you like the camera. I have a Monster Pro and it has SO MUCH jello! Hopefully, there's something wrong with mine because cameras should not be that bad unless broken.

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sergetania Oct 13, 2018

It's not about how strong and stiff it is when new but if it's still in one peace and can fly after a few dozen packs. Hopefully it holds up

The Dave Oct 24, 2018

No jello with my Monster Pro. Looks like you may have a dud. Frame flies fantastic. The rigidity makes it feel like a bigger quad.

sergetania Oct 25, 2018

Good to hear it flies well! Yeah, I think I had a dud. It was beautiful at first but after a few crashes it all turned to jello. Might have knocked the sensor loose or whatever.