MINI Extra 300 Model Description, Specifications, and Parts List

Specifications:

Length: 392 millimeters

Width: 462 millimeters

Weight: under 250 grams ready to fly with battery. No FAA registration required!

Maximum printer build plate:

All components were designed to be printed on a Creality Ender 3 Pro printer bed size of 220 x 220 x 250 max.

Airfoil:

Fully symmetrical NACA 11015 modified to 115% thickness

The following items are all parts that I used to create the prototype version of this model. Note that I've transparently listed the items with Amazon links that I actually purchased from Amazon. These links cost you zero to use, and they are the sole and teeny tiny revenue stream for this whole website. Please consider using them unless you have a local hobby shop. By all means, you should support the local hobby shop as sadly they are going away. The people that have the passion to run the local shops are a source of experience, and encouragement that simply cannot be overlooked.

Printer Filament: Lightweight PLA is a must! Of the ones I've tried ColorFabb is the clear winner. In my experience the flow rate can be dialed far further back creating a lighter part, the color prints better, and the filament simply prints cleaner than others. I liked it so much I stocked up on it.

Amazon Link: https://amzn.to/3UtAJQy

The other generic brands of Lightweight PLA filament are growing, but I have no experience using them. Others have had great things to say.

Amazon Link: https://amzn.to/3UxNDgs

Product Links:

Some of these links are Amazon affiliate links. These are always of products we used and design the model around. There is no increase of price to you for using these links but the small commission we earn helps to offset the cost of hosting this site and developing models. It is greatly appreciated.

Powerplant:

Brushless 4000 KV Drone motor with mount holes of 20mm. Think Diatone Mamba 1404 or this one from Amazon that we have used as an alternative: https://amzn.to/45nPIPf

I have not used this one, but it is in the same category: https://amzn.to/45EO1yG

Battery:

I designed this model around a Tattu 450 MAH 4S drone battery. I've actually used

Tattu batteries for quite a few models and have been very happy.

Amazon Link: https://amzn.to/445ihjz

Radio: 4 channel minimum system

My current pic is the Radio Master series of transmitters.

Amazon Link: https://amzn.to/3HDHn3J

ESC:

Brushless 10 to 12 amp depending on capacity of your motor. The following link is what I used on the prototype: Amazon Link: https://amzn.to/3KyO3OM

Receiver: Tiny plane. Not much space. This must be a micro receiver. I have used the Lichifit 4 channel micro receiver, but honestly I can't keep up with this model without a flight controller. Maybe your a better pilot than me but I ended up having great success with the Radiolink Byme A mini flight controller along with the Flysky FS A8S micro receiver.

Amazon Link for Lichifit receiver: https://amzn.to/3QyjRao

Amazon Link for the Byme A flight controller: https://amzn.to/3Jl9eGr

Amazon Link for the Flysky FS A8S micro receiver: https://amzn.to/3Jl9eGr

Servos: You will need 3 sg90 mini servos. Amazon Link: https://amzn.to/47pIsEt

Hardware:

You will need (2) 1.6 x 12 mm hex head screws for the axles.

You will need(4) 1.6mm x 5mm hex head screws to mount the custom pushrods.

you will need a small spool of Kevlar thread or alternately Upholstery thread.

You will need (3) 1mm dia. Carbon Fiber Rods.

Conclusion: That is it for the specifications! Check the main blog here for the next steps. Feel free to reach out to us with any questions. We will attempt to clarify the construction blog including your input as much as possible. Also please check out or new community forum. Feel free to post pics, ask questions, or help others.