Recommended Build List
Both the Phalanx and the Multiplier are designed for 20x20 a FC and a 4/1 ESC, a micro-cam, and an axii-style antenna:
For links and such, see the rotorbuilds page: https://rotorbuilds.com/build/20989
Motors: Anything with M3 19x19 mm mounting holes will work. We prefer 2207-2306-ish stators in 1700-1900kv. My current favorite is the Xnova / Five33 2207 1950kv, but there are tons of good options out there. Brotherhobby UC 2207 1750 is another favorite.
ESC: Any 20x20 4 in 1 ESC should fit. A fair amount of over-size is OK. We use the Aikon/Talon 35a and the Spedix IS40
FC: Same deal, anything with a 20x20 footprint. We prefer the Talon F4V2/F7V2/Fusion.
Camera: The pods were designed with a runcam racer / racer nano (and racer2/nano2) in mind. They should fit any micro-sized camera with a smooth (not boxy) body shape and an M8 Lens (the smaller size vs the larger M12 style. Be careful with particularly long cameras (specifically the Ratel). If the lens sticks out past the pod, it will not be well protected. If you have any questions as to whether a particular camera will fit, feel free to ask us!
Rx: XM+, Xfire Nano, etc. Some people (myself included) have had issues with the RXSR in close proximity to the VTx, so i'd advise against it unless you really want that telemetry.
Vtx: AKK Oscar's Backpack, TBS unify nano, or anything with that size footprint. I like to tape my backpack to the back of the camera, but there is also room on top of the stack.
VTX Antenna: Axii - 2 MMCX (or any axii-style antenna with a connector matching your VTx.)
Batteries: 6S 1050-1250mah (or, to tame it down and lose a bunch of weight, try a 4S 1000-1300)
Props: Anything in the 5" family (including 5.1 etc.) will fit. My personal favorites are the HQ 5.1x4.5x3 and the new Headsup R38's
Little Stuff: 20*20 fiberglass top plate, 19 x 250 mm strap, nylon washers/spacers, M3 O-rings, 4 nylon nuts. (TBD I may start including this stuff with the frame, LMK if you have strong feelings about it). Zip ties and heat shrink for Rx antennas.
LEDs: sometimes hard to find for skinny arms. I prefer addressable ones so that I can turn them on/off at the same time as the pit switch on the Vtx. : https://tinysleds.com/products/femto-8-led
Budget Parts List
Want to have like 80% of the performance with 50% of the build cost? Here's our list for cheaper, but still decent quality components:
For links and such, see the rotorbuilds page: https://rotorbuilds.com/build/20997
Motors: BrotherHobby UC 2207 1750 (really the best motor out there at any price if 1750kv is your goal)
ESC: Spedix IS40 , Succex makes a decent looking FC/ESC pair for $64 or so
FC: CLRacing MINI 20x20 SLF4S
Camera: Runcam Robin, Foxeer Micro Razer
Vtx: AKK Oscar's Backpack, any of the many cheap / small u.FL VTX's out there...
VTX Antenna: Xilo Axii
Batteries: 6S 1050-1250mah. CNHL, Ovonic, etc..