F-18 Afterburner Variable Nozzle video thumbnail

F-18 Afterburner Variable Nozzle 3d model

F-18 Afterburner Variable Nozzle

1.3K downloads · 2 years ago · Reverse-Engineered afterburner variable nozzle based on F-18 fighter jet. **Model Info:** This mod

Description

Reverse-Engineered afterburner variable nozzle based on F-18 fighter jet.

Model Info: This model is just an experiment to understand how an afterburner nozzle works. However, it’s not an exact representation of the real ones and may not be a practical model for use in actual jet engines.

Dimensions: 105x90 (RxH)

Part List

body = 1
Holder ring = 1
Nut ring = 1
Blade A = 12
Blade B Assy = 12
Blade C = 12
Link A = 12
Link B = 12
Rod = 12
Support = 12
Adaptor = 1

Printing This model contains many pins and joints, so it's essential to print with high quality to ensure all the parts fit together perfectly. Material: PLA Layer: 0.2mm Infill: min 10% Supports: NO Brims: only for blade C

features I designed a threaded end on the nozzle to allow it to attach to other components. If you can't design a threaded part, you can use my adapter with M5 holes, which makes it easy to attach to anything.

I appreciate your support and downloads. Please share your thoughts and experiences with me, and I'd be even happier if you could provide suggestions to help improve my model. Thanks!

Tags:

Community Makes (3)

Nice project but the socket joints are too fragile for such tight tolerances and break off with little effort. Might want to consider re-design to a pin socket joint.

Assembly:0/10-Mostly my fault I should have printed it in higher quality I have to reprint the body.stl multiple times due to sockets snapping.

Model:10/10-Very cool model would have liked it to be a few less parts but then again it looks amazing

Note: I could not put the blade-C.stl on because I had to put hot glue on the sockets to prevent the links from slipping out.

Was a breeze to print. Assembly was decent althought its definetly a little tight and needs some encouragement to get it moving

Community Makes (3)

Discussions

Thomas12342 years ago

Assembly:0/10-Mostly my fault I should have printed it in higher quality I have to reprint the body.stl multiple times due to sockets snapping. Model:10/10-Very cool model would have liked it to be a few less parts but then again it looks amazing Note: I could not put the blade-C.stl on because I had to put hot glue on the sockets to prevent the links from slipping out.

PrinterCreality Ender 3

Print bed sizeX: 235 mm; Y: 235 mm; Z: 235 mm

MaterialPLA

Layer height0.2 mm

Infill density10 %

mattbeldom2 years ago

Was a breeze to print. Assembly was decent althought its definetly a little tight and needs some encouragement to get it moving

PrinterPrusa MK4

MaterialPLA+

Layer height0.1 mm

Infill density15 %

Shayan CAD2 years ago

Thanks for sharing your print with us. Yes, it's a little tight, but after opening and closing it a few times, it loosens up and works perfectly smooth.

cfrincon19777 months ago

Nice project but the socket joints are too fragile for such tight tolerances and break off with little effort. Might want to consider re-design to a pin socket joint.

MaterialPLA+

Layer height0.12 mm

Infill density15 %

SupportsNone

BrimNo

Vespa2 years ago

Hello sir! I am currently working on an RC jet plane project and your modeling interests me a lot! I would like to reproduce the same thing for the f-16. Would it be possible to ask or purchase a STEP format of your modeling? I would do a test with ceramic printing or with a ceramic coating after modifying it if you're agree. It's a personal project. Nothing commercial

Forol15612 years ago

ma man..... I guess u won't be intertested in sharing....... would you? 😭 xdd

Shayan CAD2 years ago

Yes, send a message on Instagram to talk about it. ID: shayan_cad

Forol15612 years ago

not me printing this with a .6 nozzle and .2 layer height..... but hey... the Blade C's goin along well... so if I can nail that I don't think there will be any problems.... exept the main body... gona have to reprint it cause the dam thing likes to snap.... point to myself... be patient with assembly

Forol15612 years ago

but holy shit... when the print of a Blade C is almost done... it bends during printing so dam much it's scary... I don't know HOW the fuck do I get such good quality off it anyway when it bends worse than yo mom 😭

Forol15612 years ago

new report... I now despise the main body with a burning passion.... onto my 4th fuckin reprint

Forol15612 years ago

ok... new strategy... pause print and add those annoyng ahh fragile tiny parts mid print and then resume...

Morpeko1 year ago

skill issue

Shayan CAD2 years ago

please send me an email in (shganjipour@gmail.com) or send a massage in instagram (Shayan_CAD) i will guide you😁

Forol15611 year ago

I printed it in .1mm layer height... thinking I just need more resolution but the issue is the main body snap on joints are too flimsy to be printed in pla since pla doesn't flex at all and just breaks.... having a bit beefyer version would probably solve the issue.. that or having to print it in something more flexible

suspitios.person1 year ago

maybe use a PLA composite?, I am planning to use a PLA+. Also, what printer do you use?

Forol15611 year ago

I did used elegoo rapid pla +... it was too ridgid, my printer is the neptune 4 max running kalico on open4neptune

Forol15611 year ago

I do use pla+ (elegoo rapid pla +) to be precise.... Neptune 4 MAX tho I don't see how important that is

gonferreyra8222 years ago

Absolutely wonderful Beyond being a simple and ingenious construction, it is very well optimized from the perspective that it should be printed. I loved it! Nothing required supports and I didn't even have to use glue. Although, I have to add that the tolerances of the C-clips that connect the -body- to -Link B- need to be rethought. All of those broke off. Personally, Personally, I recommend that instead of treating it as a C-clip, you rethink it as a "through" or "rail-type conductor"

phoenixkuok618 hours ago

Where can i find the instructions?

mabdullahtaimurid2 months ago

Assalam u Alaikum, Shayaan brother, Thanks for the Idea, I was able to model a servo retracting mechanism for the Nozzle, and Also modified ur idea to be able to swapable at the exhaust section of an 80mm EDF. And I really admire ur hard work, recreating whole thing was kinda hard.

JazakAllah u Khair

milkman1426 months ago

Fitment between primary seals (blade a) and the linkages was very tight, to a point when i tried to turn the knurl to open the nozzle, it cut my hand. Cool model but ultimately went into my recycle box.

Uxi9 months ago

Very cool. If you want to try a fun one, try to do the TF-30 engines that had their individual 'petals' were on rollers and could look quite different open vs closed.

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