The AOS Cine80: Boldly going where no Cinelifter has gone before!

[@abertheham]

It’s little engineering considerations like the motor mount canting… This frame isn’t at all in my wheelhouse, but it is yet another example of your uniquely scientific/objective approach and your contributions to frame-design (among other things). We are so fortunate to have your expertise helping move us forward, no matter how thankless it undoubtedly feels to you at times. Thanks for all you do, and congratulations on the release!

[@baggszilla]

Yes perfectly said aber! Thank you Chris!

[@ChrisRosser]

Thanks for your kind comment! The motor canting is based on a paper I read from 2018 so not my invention but engineering is about applying research to products so once I learned about it I had to find a way to do it 😁

[@JoshuaBardwell]

It seems like a lot of cine frames now are including landing legs or raising up the motors to keep the lower props clear. Any thought in that direction?

[@ChrisRosser]

That's a great question. I did design and simulate a curved arm design that lifted the motors up. That style of arm is much longer, heavier and less stiff than a short straight arm (minimising the length of the arm is a key performance criteria for lifters I think). Placing the battery on top behind the cine camera necessarily creates a longer frame with more MOI on the yaw axis which is waaay more of an issue due to the lack of authority compared to pitch and roll.

[@fpvdotkiwi]

Congrats on the release. Always love the science behind the frames your design. Hopefully I end up needing a cinelifter of this size so I can buy one. Until then I'm happy in the mostly hobby zone with my AOS 3.5v2's, 5v2 + 5.5V2 which I rate above all the others I own. Keep it up.

[@ChrisRosser]

Thanks! I really appreciate the support. You'll see this tech coming into smaller AOS frames in the future 😁

[@aphinion]

I think you just did an amazing work on this frame - just by looking at it it makes so much more sense than the other existing cinelifter frames already... and I love the attention to detail you put in these frames - the 3 mounting zones, a service hatch, the "boot" area for stuff like that DJI camera monitoring system... I hope this thing really turns into the success you've earned so much. I may make this my winter project :P

[@ChrisRosser]

Thanks mate! I really appreciate all your support and hope that you enjoy the Cine80 if you get one 😁

[@BonemysterFPV]

Sometimes the esc mounting wholes will be slightly energized with a small voltage. By mounted your sma directly onto the carbon you have grounded the frame so with some escs there will be a current leak. Whenever I finish a build I always run continuity between battery plus and neg to make sure there is no potential to have any current leakage. Not a believer in grounding a frame as it can cause current leaks.

[@ChrisRosser]

Grounding the frame is a controversial topic. In my opinion ESC mounting holes should be plated and either be ground or unconnected. Anything else is unacceptable. I prefer the whole frame to be grounded either through the ESC/FC stack or through the SMA. That comes from my experience building pcs where the case is always ground.

[@coalfpv]

@@ChrisRosser Seconded. Anything other than grounded or isolated is a recipe for disaster. You really have to know what you're doing, and even then it's still just not a good idea.

[@AerialWaviator]

Fascinating design. Looking forward to seeing future designs based on some of the design concepts used here. (13:33)

[@baggszilla]

The brilliance is at such a level I can't even fathom!!

[@PIDtoolbox]

Fantastic! Congrats Chris!

[@ChrisRosser]

Thanks Brian!

[@wavesummit]

Very impressed with those logs, great work

[@AerialJohnny]

Having seen your other insights and studies on flight characteristics etc, I would trust the design of this build hands down.

[@deroskar]

As some who only flew classic 5" frames this was very cool to watch. So many thoughts that go into this.

[@liuroot]

This is golden!!!!! Great work dude!

[@MCsCreations]

Pretty impressive design, Chris! Fantastic work!!! 😃 Stay safe there with your family! 🖖😊

[@DronoTron]

This will be my first cinelifter for sure.

[@BogHopperFPV]

Any facility to mount GPS for INAV, Arducopter - don’t you need a reliable RTH and Position Hold when a camera costs that much? Do the potential legs cause vibrations? Fantastic work as always

[@definingslawek4731]

Good questions

[@DRSFPV]

Awesome ! But I'm curious that which frame has good flight performance for carrying cinema cam between AOS Cine70 and AOS Cine80. Do they have difference flight characteristic? I want to know each frame pros and cons.🤔

[@ChrisRosser]

The Cine80 is the evolution of the Cine70. incorporating lots of feedback from pilots of the Cine70.

[@wearemany73]

Congratulations on the launch, it looks meticulously well thought out and with great attention to detail. The canted mounts are interesting and 'm surprised the loss of the "torque rotation component" doesn't cancel any effect. Maybe I'll bore you with my ill-educated opinion when I've dwelled on it sufficiently. It's a beautiful lifter and pilots are going to be fighting eachother for them. 👍😊

[@ChrisRosser]

With the canting the component of thrust in the yaw direction adds to the torque component. The motors that spin up to yaw are the ones with the thrust component in that direction.

[@wearemany73]

@@ChrisRosser I get it, so there's no competing elements when yawing. That's such a brilliant method of getting a bunch of yaw authority, I love it. Thx for taking the time to explain it Chris 👍

[@tomaszboril]

Respect for the gopro mount! Kidding, good f job 🎉

[@slaughtercarterfpv1336]

That thing is insane

[@ScoutFPV]

Hey buddy great job! Just what I was looking for. New sub cheers!

[@mab4195]

great! great! great! when will it be available at Italian shops?? :)

[@fpvgiggles]

Hey Chris, looking into a lifter, wondering there is, or can be an adapter to attach a bottom mounted gimbal system?

[@butcher]

Will it be available from iflight store like the other frame?

[@rolliseventeen]

I think a upcoming cine 100 should be also able to do real long flights if it is not too heavy. We have the motors and the props, but there is not one good frame above the aos 7 out there to handle 10 size props under 300gr.

[@ChrisRosser]

If you're looking for a 10" platform for cine work please drop me an email! I'm confident I can hit the weight target and deliver excellent vibration performance but it would be great to work with you on any other requirements.

[@kibbycabbit]

Amazing! Your frame is likely getting the attention from film industries. 👍

[@kerrymillar4981]

I use 10mm carbon on my quads for the arms that thing is 2 heavy check out the rebel ruxus and check out the frame weights for the 5, 6, 7 inch quads

[@ChrisRosser]

It's certainly a lot heavier than even a 7". But when you're carrying a 1.5kg camera you need a lot more power! Even a 10mm arm would be way too thin for a Cinelifter. That's where the 2x5mm vertical trusses come in!

[@AlyxFPV]

Wow love it! But you need a full TPU Suit around it then it will be even better

[@ImperialArmour]

The flight footage looks somewhat weighty, would a heavier prop and more torque give it more authority?

[@migueliniguez7354]

Hey Chris 👋 great work and thank you. I have a Canon DLSR. What camera mount do I purchase?

[@ChrisRosser]

It's personal preference. Either mount will work. I think my mount has more strap slots for DSLRs. The DAC mount is more for box cams.

[@alainassaf]

Hello Chris ! Technical question, why 4 arms are preferred to 8 arms for octocopter cinelifters ? Is there a gain apart from being more compact ? I ask because RotorRiot made a comparison with same motors and same props and the 8 arms quads had much much more thrust than the 4 arms octocopter. Thanks in advance for your answer :)

[@ChrisRosser]

2 main reasons: Four arms makes it easier to get the props out of shot because they are 90deg apart rather than 45deg. The total platform size of an X8 is smaller than an Octo. Putting it another way you can fit larger props for a given size of drone on an X8. This really helps offset the loss of thrust and efficiency. In fact the correct comparison might be an 8" X8 vs a 5-6" Octo as they both end up a similar size.

[@breakflight]

Wow. I wish I had an excuse and budget for this.

[@MrcOurtLegend]

@Chris Rosser, do you have any information about the flight time with a Red Komodo Setup and which batterys do you recommend? Is there a vendor in Germany or the EU who is selling the frame kit because the shipping and taxes are pretty hefty. Thx so much for this awesome and stiff Cinelifter. I waited for exactly this one. :)

[@maiquochuy2128]

how do you think about 2812 1300kv motor ? does it more power or just waste i want to use with a heavy 8045 prop

[@chrishubka7486]

Any chance the AOS presets are ready to be released? I've followed all your videos and my drones flying well. I really just want to compare what I got from your videos and what your recommend for each quad, to make sure I understood your videos properly. I currently fly your AOS 7in with a gopro 10 and 2 1300mah CNHL 6s batteries. Everything else is the same as yours otherwise.

[@RCRitterFPV]

Very cool.. right now trying to convince myself why I NEED this in my life... working on it....

[@RCRitterFPV]

Mavic 3 pushed back again... haha

[@rolliseventeen]

If you like to fly it yourself with bf there is no more fun with a Mavic. The funky features from the mavic are not worth the price for me. (Any more)

[@RCRitterFPV]

@@rolliseventeen ​keep feeling like I should have one of those gps things... but find excuses to never buy it.. but.. some shots they really are better for... I just keep putting it off.

[@alsmith2422]

Fantastic job on the vertical truss arms, using the CF in the right direction! One question, how do the canted motors work on and X8, because to create a yaw reaction, one motor spools up, the other spools down but net thrust from any given arm stays the same?

[@ChrisRosser]

The motor that spools up is leaning slightly so that it's extra thrust pushes the quad around in the desired yaw direction. The motor that spools down is leaning the opposite way so there is a net thrust component in the correct yaw direction. Hope that answers the question!

[@alsmith2422]

Ah that makes perfect sense, I assumed that you'd canted the whole arm but watching it again I see the motors are canted individually in opposition directions. Nice job!

[@mcronfpv8736]

I've been waiting for this since before you started working on it ! How to get it in Europe ? (france)

[@AndriiShramko]

What is a flight time? Did you do a tests?

[@RCRitterFPV]

did you try mixing biprop and triprops? or compare performance with lets say HQ DP 7x3.5x3 V1S or GF 7537-3 against the MQ 7x4.5x2 or GF 7035-2

[@ChrisRosser]

It's on my radar to fully understand counter rotating prop configurations. The limitation is the cost of the test equipment!

[@Jronesfpv]

dont you want your video antennas outside of the frame?

[@ChrisRosser]

Yes! Just waiting for my SMA antennas to arrive!

[@kennykobi]

That looks like a snapping turtle

[@mikeallenfpv]

I know my next build! In Rosser We Truss ;)

[@ChrisRosser]

Love this!

[@modocfpv6305]

What about shipping in EU?

[@mcronfpv8736]

i already have the motors and everything. Do you see a problem flying it with 2812 motors ?

[@ChrisRosser]

No should be fine!

[@PilotExtreme]

Looks awesome, what motors would you recommend for a 3kg payload?

[@ChrisRosser]

Does that include the drone battery? For really dynamic flying with a camera system that heavy you might want to get in touch with me by email about the upcoming Cine100. 😉 The Cine80 is ideal for dynamic flying with cameras up to 2kg or smooth crusing with heavier systems. In either case 2808, 3008, 2810 are good sizes for the Cine80

[@HartPv]

Looks like it's already backordered, any idea when you'll be back in stock?

[@ChrisRosser]

On pre-order right now shipping dates are as shown in the store.

[@definingslawek4731]

Will there be a UK / EU vendor that isn't QSL? The shipping to UK / EU will be mad plus the import taxes. And I have a slammed squirt from them which costed way more than other cinewhoops and it's probably the one bird that disappointed me the most / at all. I just thought if I paid a premium price, I'd get a premium product but in practice even the tune seems shakey and the gopro mounting is really awkward. Also at the time it was advertised with the fullsize dji cam and I got a caddx cam (the silver one, Idk if it is a rehoused nebula pro or a re housed original cam)

[@ChrisRosser]

QSL will do wholesale of the frame kits for retailers in the EU/UK. Once production is up and running I'll do some direct marketing and try to get it widely stocked.

[@b3owu1f]

Hey.. when you going to get some cine70 footage? Been waiting since I bought the frame months ago. Still haven't seen any. Also.. why is this frame $50 less than the Cine70 was? :(

[@ChrisRosser]

The lower price is because it comes without the camera mount. The camera mount is sold separately for the Cine80.

[@b3owu1f]

@@ChrisRosser Oh.. still haven't put my cine70 together yet.. did it come with camera mount? Shows what I know. Still would love to see some video of the cine70. Did you still not get any back from the folks you sent the 70 to months ago? Going to go out on a limb here.. the 80 and 70 have very similar flight characteristics with the 80 lifting more thats about it?

[@juanscamposz]

Waiting the Cine100 :D

[@ChrisRosser]

If you want to be a test pilot drop me an email.

[@jelmerhemstra826]

what MPU does it use?

[@PIDtoolbox]

What’s the dry weight of the frame?

[@ChrisRosser]

Just the frame is ~400g

[@ThePixelPasta]

Cinelifters shouldn't crash often but wouldn't the cut-outs in the top and bottom plate wear out quickly causing tolerances and wobble?

[@ChrisRosser]

The cutouts don't actually hold the arms in place. The arms are held by the friction between the top plate and the top surface of the arm and the bottom plate and the bottom surface of the arm. The slots just hold the arm in place until you tighten the screws down. Before the screws are tight there is a tiny amount of movement. After the screws are tight it's like one piece of carbon.

[@ThePixelPasta]

Ah, understood. Many thanks for the feedback. The Cine80 will definitely be my next project. 🤩

[@Note2Self_IRL]

Vertical Trusses for arms ! Who would of thunk it …

[@ChrisRosser]

Yeah my 1.5kg Go Pro Mount 🤣🤣🤣

[@marc_frank]

are you sure it's better than the Shendrones Akira?

[@ChrisRosser]

In the 8" size class it's really up against the Thicc and Siccario. In my opinion both of those frames struggle with frame resonances as evidenced by logging and the arm bracing approaches that have been tried to improve things (these haven't worked well due to the mode shapes of the problem vibrations). I think the AOS Cine80 is a step change improvement over them.

[@gus8378]

Man, frame manufacturers should really come up with a design that isn't a spoiler that creates massive downforce in forward flight

[@ChrisRosser]

The goal with fpv drones is to create a bluff body (flying brick). Any aerodynamically active shapes increase camera movement in response to the wind. If you've ever flown fixed wing FPV you'll know what I mean!

[@nuk3m3vil]

Looks similar to your design kzbin.info/www/bejne/kKe9nY2lmceXg9U

[@TheFPVmechanic]

Wouldn't trust iflight electronics on my life with my track record

[@ChrisRosser]

For a pro cine build I would definitely go with whatever parts quad standard labs recommend! I've not personally had any issues but you never know 👍