February 10, 2025
Description
Please hit the like button if you feel I deserve it!
FREE Thrust Vector Nozzles I made using FreeCad for most EDF sizes.
Check out their functionality here:
https://youtu.be/JEjKvgcihMc
Here is a flight video using the 70mm TV nozzle:(I am not the best TV Pilot)
https://youtu.be/NddAZqhrgm8?si=teuIQCAKUUqvPqME
TRANSMITTER INSTRUCTIONS INCLUDED!
I have included STL Files for TV nozzles for the following sizes:
-50mm
-64mm
-70mm (Pre-Foamed 40.3g, E-Sun 24.5g)
-80mm
-90mm
I made the 70mm Nozzles in FreeCad V1.0. The rest of the sizes are either scaled up or down.
The 70mm nozzles were made in such a way that when printed with concentric infill, they come out to a specific number of walls depending on the part. The other nozzle sizes may print differently with supplied Cura Profile because they were scaled from the 70mm nozzles.
I have found that using a Pre-Foamed TV nozzle with a 70mm 4S motor is really pushing it as far as weight (At least FT Viggen). You may want to use the 70mm with a 6S EDF like I have, or a high quality 4S and try and keep the build light for best results(Foaming LW). The extra weight of the nozzle, servos, and wires are around 60-100g.
I also have a flight video of an FT Viggen that was a little too heavy using an underpowered 70mm 4S motor, a printed aircraft "SKIN", and excessive hot glue. The TV nozzle greatly helped to climb out on launch. The FT-Viggen is a hard airframe to throw hard because you have to hold it from the top!
I have not installed these nozzles on an airplane in any other size other than 70mm. If you are going to use the 50mm nozzle, I highly reccommend printing it with AF-LW-PLA!
I have only used servo sizes a little bigger than 9g with the Vectored Nozzles (12-14g servos). I am unsure whether a 9g servo would burn out or not because I HAVE NOT tried it. If someone does try all metal 9g servos, please let me know!
I have included a picture of the exact size cut-out needed in your aircraft to be able to easily install the 70mm version. However, I recommend building an aircraft with the intention of installing the TV-System from the very beginning (speaking from experience).
I have included detailed instructions of how I set up two "MIXES" to be able to add Thrust-Vectoring to a "3-Way Switch" on my Spektrum NX-8 transmitter (OFF, MID, HIGH Rates). Most SPEKTRUM transmitters will be very similar. If using a different brand transmitter, at least it will give you an idea of how you need to go about it.
License:
CULTS - Private Use