AP Crab

By FissionBomb on Jul 11, 2018

13  237  6

I have a rare King Crab frame from Falcon Multirotors. The plan is to put some cheap motors on it and build an AP rig. Run in angle mode with an angle limit of 20.

Motors will be no name 2304 2300kv RC Timer Motors for $2.99 ea

06/05/18 - Construction has begun. Midgard has the lipo pigtail and ESC pads tinned. RC Timer motors arrived and the wires are super long. I may try to route them through the arm tips on the King Crab.

06/06/18 - I replaced the nylon screws I had holding the stack together with steel. I also slid a battery strap in there and put down a sticky cushion for a top mount lipo. I think I'm going to go with a higher mw VTX for distance. Coming up with an FPV and HD camera position solution will be the challenge.

07/01/18 - I maidened this build today after completing the build process as best I could. The Fatshark cam burned up when I powered it on. I replaced with an AKK micro than ran off 5v and it worked perfectly. The FPV feed has a lot of prop in view. The Go Pro is mounted using zip ties and hot glue. In order to take off I need a small box to steady the back half of the PMR to level it. The Go Pro is the lowest item on the build and you have to land on it. I did not think about Gopro battery access. The top mount battery is sketchy as hell. Rubberbands may be a great friend on this one.

Photos

Part List

Frame

Garagecrab (14 builds)
Falconmultirotors.com
$50.00

Flight Controller

FLIP32-F4-AIO Midgard (F4+ESC+CS) (3 builds)
Readytoflyquads.com
$45.99

Propellers

DAL T5040 V2 Tri-Blade Translucent (5 builds)
Dalprops.com
$2.49

FPV Camera

AKK K19C 600TVL M7 Lens 120 Degree NTSC Mini FPV Camera (3 builds)
Amazon.com
$7.59

FPV Transmitter

RDQ Mach 1 Video Transmitter 25-600mW VTX - U.FL or MMCX (17 builds)
Racedayquads.com
$17.99
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Discussion

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JasonFPV0   Jul 21, 2019  
1

Honestly this is a good idea... I should make one of these with spare parts for a video rig...

Show 2 more comments
FissionBomb   Jul 22, 2019 

I added a lot of expo so I'm extra buttery on the sticks. No inverted moves for this thing.

JasonFPV0   Jul 22, 2019 
1

Yeah, I'm thinking angle mode to lol.

FissionBomb   Jul 23, 2019 

Acro don't hurt it. Angle limits things quite a bit and doesn't fly nearly as fast or smooth.

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