Optimo-3 v1.3 Amax 1303 Performante

By Jimmy2Fast4U on Oct 15, 2020

6 338 7

This frame is the latest and most refined version of my Optimo design.
It has the built in canopy which is super tough and durable, the camera mount also features degree markers for precise camera tilt angle, it uses square profile arms for maximum strength and optimal airflow, it uses my refined 2-bolt motor mount design and now has Countersunk flush fit FC screws.
I have refined the design to remove all unnecessary carbon for the lightest possible weight without compromising strength.
The frame uses Titanium screws for the motors and props, nylon screws for FC and Aluminium screws for the frame.

This build has a legitimate 12mm Battery strap, onboard DVR and it still weights a killer 55g Dry or 95.5g AUW with 3s 450 Battery
(TRUE no BS weight)

WEAPONS GRADE 3" Ultralight

Photos

Part List

Flight Controller	NAMELESSRC AIO412T (FC+ESC AIO) (5 builds) Pyrodrone.com	$42.99
Propellers	Gemfan 3018 Props (4CW + 4CCW) - 2mm (45 builds) Fpvcycle.com	$3.19
FPV Camera	Caddx Ant 1.8mm 1200TVL 16:9/4:3 Global WDR with OSD 2g Ultra Light Nano FPV Camera for FPV Racing RC Drone (134 builds) Banggood.com	$19.90
FPV Transmitter	Happymodel Diamond VTX 5.8G 40ch 25mw-200mw Switchable VTX with DVR (4 builds) Pyrodrone.com	$18.99
Receiver	FrSky XM+ 2.4GHz Micro ReceiverDefault Title (1149 builds) Racedayquads.com	$15.99
Batteries	Gaoneng GNB 3S 11.4V HV 450mah LiPo Battery 80C XT30 LiHV (18 builds) Pyrodrone.com	$10.49

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Discussion

fw42 Nov 30, 2020

That canopy looks really cool. How much does it weight?

Jimmy2Fast4U Dec 01, 2020

The canopy on this design is part of the frame,, The Optimo-3 frame/canopy including all the screws/fixings is lighter than just the frame of a Kabab TP3

fw42 Dec 01, 2020

Nice. Do you have the design somewhere online to download (or purchase)?

Jodie Froster Oct 17, 2020

The way the light plays on the metallic tape as it grips the motor wires matching the texture and color of the motor bells is amaz. On that note: wtf are these motors?!!?! I see the 1303, and assume the 5000 is the kv, I have never seen these anywhere before!
This is a beautifully refined design. You have done outstanding work here. I would totally build this frame if it was for sale (it would be hard to decide which size I would build).

Jimmy2Fast4U Oct 18, 2020

Thanks Jodie, the motors are new Amax motors that just recently came out, they are very lightweight compared to alternatives in that class

fw42 Nov 30, 2020

How do you like the motors? Have you tried the 7500KV version (on 2S)?

Jimmy2Fast4U Dec 01, 2020

No, I've not tried the 7500kv versions.
I've only tried these 5000kv motors on 3s.
These Amax motors are very expensive compared to the alternatives, the only real advantage to the is their lightweight, they are about 1g each lighter than comparable motors.
The Amax motors fly OK, I have multiple 3" drones with identical specs except on the other builds I use RCinpower 1204 5000kv motors.
The RCinpower 1204 are half the price of the Amax, they are more powerful than the Amax motors, and they are less amp hungry than the Amax. RCinpower is better in every way except the weight.
Also, for these ultralight 3" builds, I have found that the very best prop is the HQ T3x2 which is considerably better than the Gemfan 3018 (more thrust and way more grip), The HQ props come in 1.5mm shaft size (same as the RCinpower) but these Amax motors come with the 2mm shaft. So I'm stuck drilling out the props to 2mm to use these amax motors. I have never bent a 1.5mm shaft on a 1204 motor, in my mind these 2mm shafts are a gimmick and a pain in the ass because I want to use 1.5mm hole props.

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