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  • Bad Raven: Balance lead extensions are pence from China, I bought bulk. I also cut the old balance plugs with lead off and if I get a broken plug body I just solder a new one lead to lead, can extend at the same time.
    Today at 14:17:22
  • Reman: Bajadre, With reference to balance leads, I bought a cheap JST XH crimper, plus a shed load of male/female plugs and pins a while back. It's amazing how many times that lots come in handy. Not just for repairing battery packs, But for things like adding quick release plugs to wiring harnesses so you can do things like pop gimbels on and off camera drones quickly, Or add plugs to the cables of hardwired components so you don't have to desolder them when you need to get them out of the way in a rebuild, And making charging extension leads so you can get the battery right into a Li-Po safe bag and away from the expensive charger. They're well worth adding to the toolbox..... The other day I only spent about 5 minutes hunting for my 4S charging lead before giving up and making a new one. If I didn't have the crimping kit I'd probabbly still be looking. :)
    Today at 14:00:55
  • hoverfly: Not unusual Reman, they just cant be ar$ed to deliversome if they get behind schedule.. Yesterday i had a delivery by Herpies,  got a sms telling me when they were going to deliver, then rang the door bell and knocked. The parcel was intact and damage free.  Not sure what is going on.... :hmm:
    Today at 13:23:11
  • Bad Raven: Where is it broken?
    Today at 13:22:29
  • hoverfly: If you cut them off make sure  you insulate the ends. :smiley:
    Today at 13:18:42
  • Bajadre: Quick question guys is it ok to snip off a broken balance lead and not run it i know i wouldnt be able to balance charge it again but would the pack be ok ? its a 3s 5500mah which the lead got dragged along the floor on sundays bahs :(
    Today at 12:44:55
  • Reman: About an hour ago I had the Yodel tracking system tell me that I wasn't in...... That's f*ckin' news to me !!!!!
    Today at 10:17:20
  • Reman: Like I said, In the past I've had a handful of packs "Go off" at me like fireworks after bad crashes (Usually with RC helis), So it's hard to get that image out of your head while stripping down Li-Po's. :)
    January 21, 2019, 11:22:54
  • shawdreamer: the horror stories will always incite worry when messing about with Lipo's but its the same as everything else when working on electronics alike, alsong as your careful and methodical there's very little to panic about, I regularly recycle 4s's with a single dead cell into usable 3s packs, end of the days its alot more economical, safer and enviro friendly than having to bin them....just a pain that the dead cell is NEVER one of the outer cells so you always end up having to strip a good cell off to get at the bad cell before putting it back afterwards, its like dropping toast, it'll always land buttered side down and inevitably covered in pet fur :angry:
    January 21, 2019, 00:11:16
  • Reman: Just did the one electrical job that still scares me. I dismantled some Lipo's with knacked cells and built usable packs out of the good cells. I've had packs go "VOOOOOOSH" at me in the past so I'm always slightly scared of having bare lipo contacts anywhere near what I'm working on, But all appears to have gone well and one of them is currently doing a charge/discharge cycle to make sure nothings a miss. :)
    January 20, 2019, 22:28:43
  • Reman: My original Dremel Pro made it to 14 years of heavy weekend use (And abuse) before it crocked. Dismantled that but it turned out to be a "Control module" fault, And Dremel made it ni on impossible to get into that without pooching it completely. :(
    January 20, 2019, 22:17:27
  • ched999uk: BR  ::)
    January 16, 2019, 22:26:54
  • Bad Raven: That's a warrnty claim if ever I heard one....
    January 16, 2019, 20:32:55
  • ched999uk: My 28 year old 12v 35w Weller soldering iron failed  :( I didn't fancy forking out £100 for a new one. Stripped it down and found conductor snapped in cable. 10Mins later all back working great. :smiley: ::) I am very happy!!
    January 16, 2019, 17:23:06
  • shawdreamer: "look up there....its a drone!.....and whats this noise?..... no.....no..... it cant be!....NOOOOOOOO.......OOOOOOOOOOOOOPS I DID IT AGAIN, I PLAYED WITH YOUR HEAR....."
    January 10, 2019, 14:17:24
  • shawdreamer: <starts downloading britney spears albums and preping his large frame to carry a PA system>
    January 10, 2019, 14:15:08
  • Bajadre: defo steveo :) we should get loads of drones together up there so how they handle more that one lol
    January 08, 2019, 19:39:07
  • steveo9007: its all a ploy to get who ever has won the contract for geofencing the airport in, i reckon  ::)
    January 08, 2019, 18:38:26
  • Bajadre: more lies hope they prepped the police staement already lol
    January 08, 2019, 18:27:49
  • Bad Raven: Take Offs resumed
    January 08, 2019, 18:24:45

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Author Topic: H4 Alien Coaxial octocopter build  (Read 3999 times)

Offline stickboy

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H4 Alien Coaxial octocopter build
« on: March 31, 2015, 23:40:39 »
Figured I';d share my build with you all since there doesn';t seem to be enough octo-quads out there. Have to say, this is probably my favorite build so far - going all out with the wire wraps and making this as permanent as possible. I had to get a little creative with wiring the power harness to get all my ESC to fit inside of the frame but I think it ended up looking pretty decent (power cable sticks out of the bottom so its not too visible). More pics to come as I finish her up. Here';s the build list:

8x T-motor MT4006 740kv
8x T-motor S25A ESC
8x 12" CF props
NAZA V2 Flight Controller
iOSD to come with GoPro gimbal and 600mW skyzone Tx
BATT: 2 pack of 5600mAh 4S in parallel and 2 pack of 8000mAh 4S in parallel

So far the weight is in the 1.3kg range so I think I might be just barely pushing 3kg AUW fully loaded with the 16000mAh 2 pack!













Offline Kitetraveller

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Re: H4 Alien Coaxial octocopter build
« Reply #1 on: April 02, 2015, 11:59:13 »
That';s a sweet looking build you have going on there fella!  ~~ ~~

I am in the process of building an X4 octoquad based on the Tarot Ironman 1000 frame with home designed motor mounts for the Tarot 4114 - 320kv motors.

I am putting my esc';s (40A) out on the end of the booms to help with cooling, and have a Fixhawk FC to use.

I am now feeling embarrassed about the poor quality of my wiring...hmmm....the trouble is that if I get it flying, meaning to come back and tidy up the wiring, its never going to happen... :embarrassed

I look forward to more updates.

Happy Easter
Cheers
Andy

Offline stickboy

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Re: H4 Alien Coaxial octocopter build
« Reply #2 on: April 05, 2015, 08:36:48 »
I am now feeling embarrassed about the poor quality of my wiring...hmmm....the trouble is that if I get it flying, meaning to come back and tidy up the wiring, its never going to happen... :embarrassed

Hey, as long as the props don';t hit the wires! All my other builds have been pretty sloppy so I figured it was time to go all out and make something permanent. Think I';ll be adding this one to my permanent collection.


Offline stickboy

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Re: H4 Alien Coaxial octocopter build
« Reply #3 on: April 05, 2015, 08:48:59 »
So I think she';s looking done until I figure out my FPV setup. Definitely need to find a better alternative for the landing gear, but this thing flies amazingly! I';ve never flown anything besides quads but the way this thing yaws and banks in turns kind of blew my mind. I think I';m definitely considering going Y6 or X8 for a mini build after testing this thing.

Only have one flight test in but I went just shy of 8 min. with only one 5600mAh 4S and looks like I drew less than 50% capacity (charging back up right now). Not bad for how hard I was testing the throttle and being a couple inches under my max prop size for these motors. Can';t wait to try out the 16000mAh batt!








Offline Kitetraveller

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Re: H4 Alien Coaxial octocopter build
« Reply #4 on: April 08, 2015, 17:03:07 »
Hey Stickboy,
That';s looking good for a first flight ~~

Yeah, wires away from props seems to work, but it does make for a messy build.

I plan to run 3S batteries in series to give me the 6S I need; 2 x 3S 5000 on each of the 4 arms should do it!

I just finished the power distribution build; I will put up some pics this evening when I get home.

Looking forward to hearing how much batt you used.

Stay safe
Cheers
Andy

Offline Arthur89777

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Re: H4 Alien Coaxial octocopter build
« Reply #5 on: February 26, 2016, 17:04:45 »
That is very nice. This octo is very capable. Many of them look like little monsters ( not for bad say) But this type looks unusually.
And seems like if some rotor stops, the other one on the same side helps it to stabilize the drone. Simple and wonderful technology. I like it

Offline Maradon

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Re: H4 Alien Coaxial octocopter build
« Reply #6 on: November 15, 2018, 09:07:51 »
I am looking for The data is fit.