Hey guys, throughout my time working with multirotors i have never seen a mini Octocopter, i have teen tonnes of min quads and a few Hex but no octos??? So I decided to build my own, this tiny beasty has 8 1534KV 53gram motors.
I could have gone smaller and gone for micro octo, but i wanted to be able to use 4s and 3s and these were the smallest motors that offered 4s capability.
So i chose them, now i wanted this to be a fully fledged "drone" so i gave it enough internal space for the Taranis RX, the APM 2.6 and space for lighting controller.
The fact is all this micro quads etc do not offer the functionality of the APM, so i was determined to use it.
(on that note, please push hobbyking to relese the design files for the APM mini)
So anyways, the first frame i built was made from PVC, i made it in a vacuum former, I wanted it to be similar to the wardrones frame however as i had said to them , i had suspicions that the huge surface area under the prop blades would drastically affect performance and it did!
The copter was weak, lifitng itself was difficult, let alone a camera gimble!
And the worst part was it took me about 5 days to manufacture this thing eek.
I will also point out my arms are thinner than the wardrones frame was and so i can only imagine how much power they are loosing in flight.
Anyways, after all that effort and a dissapointing result, i went back to designing and made this:
The mini octocopter V2 laser file, this is one of two files for this simple but effective frame, it took me about 20 minutes to make the design and about 2 hours to cut and build the copter.
It can be made from MDF, plywood, acrylic etc, all are very strong, i chose MDF
It can withstand some hard impacts without taking much damage and is easy to fix.
I made large mounting areas for the key electronics so that you can use all sorts of setups, you can also remove 4 arms to use it as a Quadcopter or 5 to use as a tri copter.
This one looked far better and flew excellently!
I hope you guys like the design, maybe this will inspire a generation on mini and micro ocotcopters hehe,
Just to sum it up, it can lift about 2KG using 8 1500kv with 7"props on 3s, i have 4s ESC's on order which should make it a rocket!
Tip to tip it is approx 55CM
So i hoped you liked it, i would like you to maybe answer a few yes or no questions please, not madatory hehe.
Yes or no to all please
1 Do you like the Idea of Mini Quads?
2 Do you think the bright lighting will help with orientation?
3 Do you like the intergrated mini gimbal (go pro / mobious compatible)?
4 Do you think it is a robust (strong) design that can withstand a few dings?
5 Would you buy the Frame if it were to be sold, Costing about $10?
6 Do you find orientation to be an issue when distance flying multirotors?
7 Do you like the option of 4s and 3s for flight power?
8 Do you think this frame would work well with a variety of setups?
9 Do you use lighting on your copter to help with orientation?
10 do you prefer octos to Quadcopters?
Balsapus runs a 3S not a 2S. While the motors are 2900kv, 3S is possible due to the very small props.
This was just a throw-together, version two (with APM) is still under development. But it will be ready soon.
pretty cool 2s octocopter, but dude APM it hehe
Hi Jared - Very nice. Here is my mini octo. It is 360mm motor to motor, and build from $8 worth of Balsa. Motors are just 11grams each and the props are 4x2.5s
hmm, stuck a amp in there hehehe
Autoquad m4 - take a look at the forum for more info.
hey hey thats awesome!, what flight controller?
How about this for a micro octo?
thing is with an octo you have 100% more redundancy than a quad, most crashes are from motor issues
Fair enough, I guess. I've gone the opposite way just upgraded mine to a hex, and am loving it - for "workhorse" activities (product testing, inspections, payloading, searchlighting and good ol' gimbal video) it's great. I've sacrificied a small bit of agility to gain more power and stability, and it's so damned easy to fly steady. Bizzarely, I've only lost a minute or two of flight time as well.
On the other hand, I've got a 230 quad frame coming (and just finished a APM-based compact Y6), and can't wait to rig it out with an APM mini and FPV and just go mental with them both! ;-)
@Euan,I think the hex is a fine camera platform. I've had some issues with mine though, that I can't put my finger on. At the end of the day, I just prefer a more acrobatic, nimble platform than at least my current Hex provides. An octo is on my list to build though. When you crash a hex, you have 50% more motors, props, arms and ESC's to potentially damage :)