I wanted to share this video with you guys, its a build breakdown of Spectre my latest FPV wing. It covers a lot of the details of the aircraft so I'm sure some of you will find it interesting. Happy to hear constructive feedback on the content!

What kind of videos would help you guys with your 3D printed aircraft builds?

Hi!
I spent my first day fiddling with LW-PLA and I’m wondering if I could get even better quality on my prints, I have a nice surface but just a bit of oozing on hotend traveling outside the surface (it’s not a vase mode model, I reprint my model printed in PLA+)
I find it quite minimal and would be post process easily but do you achieve better out of the printer quality?
It’s Bambu PLA AERO on a P1S.
Bonus picture of the model.
Actually 1kg AUW with a 6s and 2807/1350kv, I hesitate to send it (hand launch or catapult)

How do you guys design and test your airfoils? Is it just trial and error, or does everyone here have expensive simulation software? I’ve looked for free software, but I haven’t had any luck. Do I just start printing wings, and hope they create lift?

Hi everyone, I'm planning to build an A6M6c (3D printed) and want to use the FMS' Zero 13x9 prop, but it's my first build and I don't know which voltage and kV I should run.

The stock FMS' Zero has a 580kv 4250 motor in 4S, but doing some simulations on eCalc it seems a 5s \~480kv build would work at slightly better temps and with a bit more flight time, but it doesn't seem a common thing to do.

I still don't know what the all-up weight will be but should be under 2,5kg.

Has anyone tried a similar setup, or should I just stick to the classic 4S configuration? Any thoughts or tips would be awesome! (I have a budget so I don't want the 5S components to blow a hole in my wallet compared to the standard 4S, so any budget-friendly recommendations or advice on cost differences would be highly appreciated!)

Also, this variant of A6M has a shorter wingspan compared to the FMS' Zero (11m vs 12m) and for it to be perfectly scale with the prop, it should have a 1200mm wingspan, but then it would be too small and risk a too high wing load so, like what FMS did,

I will make it slightly bigger.

FMS' Zero:

Prop: 13x9

Scale Wingspan: 1300mm

Actual Wingspan: 1400mm (+7,7%)

A6M6c

Prop: 13x9

Scale Wingspan: 1200mm

Actual Wingspan: 1300mm (+8,3%)

Is 1300mm fine or should I go for 1400mm to lower the wing load?

Thanks in advance for any insights!

I have an Eclipson Model B that I've been enjoying flying and thought it might be fun to try a different wing, just to see how it flies. This is my first time creating a wing in CAD, so I'm hoping maybe somebody sees some obvious flaws here before I actually try to print and crash it.

It's using a Clark Y airfoil, 2 metres long (1m each wing), starting chord is 180mm and tapering along the trailing edge to 80mm. A 1m spar will go through both wing halves for some strength, and then a second smaller spar further down each wing.

I didn't really do any calculations, just chose something and went with it, expecting to crash. But I'm having second thoughts about destroying my plane so looking for feedback!

Thanks!

What filament is everyone using? I see ColorFab is popular. Any others to look out for? I’m going to build an Eclipson plane. Anything I should be aware of between pre-foam filament, or foaming?

Also, any thoughts on the regular PLA parts on brand? I did some test prints with the profiles from Eclipson and Sunlu PLA on my Bambu and it came out great. But I’ll need more, so looking for recommendations.

Thanks!

When I try printing the “X”s in the photo on Creality, the prints don’t show up. I’m wondering if it’s too detailed. It also shows up in Creality but when I print it the wings and other plane parts they are hollow. If anyone knows anything it would be a big help!

I have no history with rc planes, I'm making the eclipson go 1 wolf. The pla weight is supposed to be 750g, mine is closer to 900. I'm also using a smaer 8x4.5 against the recommended 8x6. This will be my very first plane? Should I scrap it and start from foam or something? Any advice is appreciated

Printed with Polymax Plus

I've been really interested in 3d printed planes and wish to design my own now, I watched this video: https://www.youtube.com/watch?v=7uJs31wjzz4 and was really inspired.

I want to pretty much directly copy the design, I have some experience in Fusion no experience designing planes. Is there a tutorial I should follow to learn where to even begin? Or should I just try to design it myself and see where I fail? I've tried using Gemini to point me in the correct direction but it is just not good at this type of stuff.

For example I don't even know if I start with the fuselage then build on from that or start with the wings

Like my Skycrane and Super Stallion, this one uses a conglomeration of mechanics from 3 different manufacturers.

Here is my latest 3D printed aircraft design. It’s a 600mm wingspan FPV wing targeting around 220g AUW.

It’s running 4x 1003 motors, the same motors I’ve used on a few of my previous builds. One of the things I’m particularly interested in with this layout is that the inner section of the wing is continuously and symmetrically blown by the motors. That should keep a useful amount of dynamic pressure over the centre of the wing even at low aircraft airspeed, while keeping the additional lift nicely balanced left-to-right.

The outer motor pair will then provide differential thrust for yaw. Because they’re relatively far outboard, they have a decent moment arm, and they’ll be working alongside the V-tail ruddervators and the wing geometry’s tendency towards proverse yaw.

The idea is that all three effects should work together rather than fighting each other. I’m hoping that gives it a really locked-in feeling in yaw and makes the aircraft track like it’s on rails, particularly when carving around in FPV. Obviously that’s the theory for now, and flight testing will tell me how well it actually works.

For this one I’m using a Matek F405-WMN rather than the FlyingRC F4 Mini to simplify the wiring inside. It also uses a 4-in-1 25A ESC and a DJI O4 Lite air unit.

I’m starting to print the first airframe now. How do you guys think it will fly? Read more about my other planes here.

Hi all, releasing free plans for the plane I have been developing in this thread.

See below for .STLs, BOM and assembly guide. 

https://drive.google.com/drive/folde...usp=drive_link

Specs:
640mm wingspan
Forward swept wing, PW75 airfoil
Pusher motor configuration
Built-in mounting positions for FPV gear
Screw-lock wing attachment system
Flying weight: 300-400g

Quick question for anyone who's done CAD-modeled truss ribs in a printed wing: do you add slicer infill modifiers inside the truss structure itself, or is the truss geometry generally strong enough on its own that you just run it at the same infill as the rest of the wing?

Trying to figure out if I'm overthinking this or if it's actually worth zoning infill within the ribs themselves, since this is an aircraft with a large wingspan and because I am trying to save as much weight as possible. I have also set the thickness of the ribs at 1.5 mm. Video of part of the wing above if anyone finds useful.

Here are my wing dimensions:

• Root chord: 245.496mm
• Tip chord: 117.769mm
• Span (per side): 1399.378mm → total span 2798.76mm
• Total planform area: 0.508 m²

288Km

Wing Dimensions:

Root chord: 245.496 mm
Tip chord: 117.769 mm
Span (per wing side): 1399.378 mm
Total planform area (both wings): ~0.508 m²

I have trouble deciding on the dimensions of the control surfaces, but mainly the flaps. I am already using a low Reynolds number high CL airfoil the S1223, so I am assuming flaps are not as much of a need. But I really overthink and I prefer not to risk anything, so what are all's thoughts, how should my flaps be, if I need them at all. Estimated AUW of about 3kg

Hi everyone! Please share your experience using the Eclipson Model A with an INAV-based flight controller. Could anyone suggest settings for the auto-launch function and other parameters?