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Lagertha 180
#1
Hey guys, I'm starting a new build and I would like your take on it.

I have to state that this is my first build so I have no idea about how all of those components will interact and what to expect.

Here's what I had in mind:

Frame - http://www.banggood.com/RC180-V2-186mm-C...21110.html

RX - http://www.banggood.com/Wholesale-Walker...67793.html

FC - http://www.banggood.com/Upgrade-NAZE32-S...10232.html

Props - http://www.banggood.com/2-Pair-DAL-4x4_5...29704.html

ESC's - http://www.banggood.com/DYS-XM-Seris-XM2...21885.html

Motors - http://www.banggood.com/DYS-1306-3100KV-...62149.html

LiPo's - https://www.hobbyking.com/hobbyking/stor...duct=32551

I need this to be able to lift Runcam 2, VTX and internal components.

I'm having reservations about the motor size and a LiPo. I have checked out all 180 builds on the forum and only one uses 1306 motors. Also, I'm not sure about what kind of flight time I can expect with this setup. This LiPo is farily light but I don't know if a higher mah battery, say 1300 mah would compensate for it's weight.

What do you guys think?

Thanks again for your answers and input!
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#2
Hi grahek, welcome to the forum.

The motors will be ok, but going to 1806's is not a bad idea, I even use 2204-2300's on 1 of my 180's.
A 1300 mAh is probably the sweet spot in terms of power and flight time, will also be great to use on a 210 /250 sized quad should your fleet grow. Perhaps go 4S right from the get go.

I cannot vouch for the RX, but things to consider..a 180 sized quad you need small components, but if that is all you can use, then you will have to make it fit.

The esc's you picked are great little performers.
The SPRacing f3 clone will do the job real nice, Tip for you: epoxy all the JST connectors and usb port, I have had one or 2 JST connectors come off before and epoxy helps prevent that.

The frame seems nice enough.

I noticed you did not include a VTX or FPV cam

The props you picked will be fine, but consider the 4045 DAL Tri props. They are great.

But overall, what you listed would sure get you up and running.
My youtube channel

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#3
I would prefer 1806's because they are compatible with the JJRC X1 that I currently own. Interchangeability is always a good thing (: Yeah, I probably could go for 4S right away, that would enable me to use 1806 motors.

These then would probably be okay? https://www.hobbyking.com/hobbyking/stor...duct=32721

What RX would you recommend that works with Devo 7e? I have Deviation fw flashed so it supports a wide range of protocols.

Yeah, everybody I asked says that those ESC's are the thing to have, didn't read a bad review, anywhere. I was reading the SPFR F3 manual and they recommend epoxying all the connectors, if you and the manual suggest it, who am I to argue! (:

On my X1, I use Runcam as an FPV cam and it seems to be working fine. X1 probably isn't as agile as this build so this is probably where the latency would start to come into play. I don't know how much latency is tolerable on this kind of builds but Runcam has really low latency.

Yeah, if I'm going 1806 then I can probably use 4045 triblades, I thought they were too vexing for 1306 motors. BN's would probably work fine too, right?
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#4
(15-Apr-2016, 12:05 PM)grahek Wrote: I would prefer 1806's because they are compatible with the JJRC X1 that I currently own. Interchangeability is always a good thing (: Yeah, I probably could go for 4S right away, that would enable me to use 1806 motors.

These then would probably be okay? https://www.hobbyking.com/hobbyking/stor...duct=32721
Personally I would go for a Higher C rating like 60C or higher

What RX would you recommend that works with Devo 7e? I have Deviation fw flashed so it supports a wide range of protocols.
I have no idea what would work with the Devo7e

Yeah, everybody I asked says that those ESC's are the thing to have, didn't read a bad review, anywhere. I was reading the SPFR F3 manual and they recommend epoxying all the connectors, if you and the manual suggest it, who am I to argue! (:

On my X1, I use Runcam as an FPV cam and it seems to be working fine. X1 probably isn't as agile as this build so this is probably where the latency would start to come into play. I don't know how much latency is tolerable on this kind of builds but Runcam has really low latency.
I have never used a Runcam HD as a FPV cam, I always separate the 2.  Personal choice I guess.

Yeah, if I'm going 1806 then I can probably use 4045 triblades, I thought they were too vexing for 1306 motors. BN's would probably work fine too, right?
I use the DAL 4045BN Triblades with my 1806 motors and 20 amp esc's just fine.
My youtube channel

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#5
The main issue with using a runcam, or any of the other recording cameras, is the latency tends to be pretty bad, meaning the difference between what you see through your goggles can be a little bit behind where your quad actually is.

I am talking about fractions of a second but it could mean the difference between you avoiding a tree and smashing into it at full speed!

Going from my quad to a friends dji phantom 3 and flying that fpv through the gimbal mounted gopro felt horrendously slow and unresponsive... felt like ages between me applying an input and the quad reacting. In real terms it was less than half a second but FPV being so immersive you really do notice it!
76 Broken props
45 Used cable ties
1 Fried ESC
1 very unsympathetic girlfriend
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#6
(16-Apr-2016, 01:48 AM)DaJudge Wrote: The main issue with using a runcam, or any of the other recording cameras, is the latency tends to be pretty bad, meaning the difference between what you see through your goggles can be a little bit behind where your quad actually is.

I am talking about fractions of a second but it could mean the difference between you avoiding a tree and smashing into it at full speed!

Going from my quad to a friends dji phantom 3 and flying that fpv through the gimbal mounted gopro felt horrendously slow and unresponsive... felt like ages between me applying an input and the quad reacting. In real terms it was less than half a second but FPV being so immersive you really do notice it!

GoPro isn't as good as Runcam, especially in FPV mode. Runcam is developed and made with this in mind while GoPro just kinda... has that feature (: I'm talkin about Runcam 2, of course.

I certainly don't get that feeling flying with Runcam. It all feels pretty responsive and I really don't feel any lag. As soon as I'm on the input it happens in my goggles. I know that X1 isn't exactly as fast as this build I'll be building but X1 isn't a slouch either (: I guess we'll see, I do have a spare 600 TVL camera lying around so I might do some tests in the future.


Another quick question for those with experience. Do I need any additional hardware in order to configure this quad? FC, ESC's? Some USB dongles, converters? How does one configure and flash these ESC's? Via the flight controller interface or is it done manually via some ESC interface?
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#7
(17-Apr-2016, 02:39 PM)grahek Wrote: Another quick question for those with experience. Do I need any additional hardware in order to configure this quad? FC, ESC's? Some USB dongles, converters? How does one configure and flash these ESC's? Via the flight controller interface or is it done manually via some ESC interface?

Looks like you should be good to go!
Your FC should just connect to the computer with USB cable...
and your ESC can be programmed via the FC since they have BLHeli bootloader/firmware installed already...

maybe get one of these USB to serial converter... you will need them in the future for various things like programming OSD or some other FC that doesn't have built-in converter:
http://www.banggood.com/FT232RL-FTDI-USB...17226.html
Don't be a LOS'er, be an FPV'er :)  My Gear - Facebook - Instagram - Twitter
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#8
(17-Apr-2016, 05:42 PM)Oscar Wrote: Looks like you should be good to go!
Your FC should just connect to the computer with USB cable...
and your ESC can be programmed via the FC since they have BLHeli bootloader/firmware installed already...

maybe get one of these USB to serial converter... you will need them in the future for various things like programming OSD or some other FC that doesn't have built-in converter:
http://www.banggood.com/FT232RL-FTDI-USB...17226.html

Thanks Oscar!

I have a question about these ESC's. On them it says 3-4S. Is this written as a "best used" suggestion or those ESC's just won't work with the voltages lower than 3S?

I'm asking because I might be trying to run this setup on 2S till I have the chance to buy 3 or 4S batteries.
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#9
(18-Apr-2016, 06:33 PM)grahek Wrote: Thanks Oscar!

I have a question about these ESC's. On them it says 3-4S. Is this written as a "best used" suggestion or those ESC's just won't work with the voltages lower than 3S?

I'm asking because I might be trying to run this setup on 2S till I have the chance to buy 3 or 4S batteries.

Obviously I am not Oscar, You can run 2S lipos on a 3S rated esc, but of course you will not get anywhere near the performance you require and honestly it will leave you with a terrible flying experience.
My youtube channel

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#10
(19-Apr-2016, 12:09 AM)BigglesFPV Wrote: Obviously I am not Oscar, You can run 2S lipos on a 3S rated esc, but of course you will not get anywhere near the performance you require and honestly it will leave you with a terrible flying experience.

Thank you Biggles! (: d:

Yeah, I know flying a machine like this one will utterly suck at 2S compared to 3 or 4S but the way things are planned, the batteries will be coming last and I would like to be able to test and configure with the batteries I already own (:


Later I will most definitively be getting 4S's.
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#11
I tried to run those ESC's on 2s and they didn't work. Quad armed, but motors didn't spin.

EDIT: the same quad works on 3s pack, so i ASSUME that 2s is too low.
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#12
Yea don't waste your money on2s wait for 3s if you must... It would be a lot more fun to fly regardless the esc would or wouldn't work
Don't be a LOS'er, be an FPV'er :)  My Gear - Facebook - Instagram - Twitter
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#13
(19-Apr-2016, 01:47 PM)Konrad Stepanajtys Wrote: I tried to run those ESC's on 2s and they didn't work. Quad armed, but motors didn't spin.

EDIT: the same quad works on 3s pack, so i ASSUME that 2s is too low.


Hmm, some conflicting info here. Biggles says they work, you say they don't.

I see I'll have to dig a little deeper. Thanks for the info!

(19-Apr-2016, 05:01 PM)Oscar Wrote: Yea don't waste your money on2s wait for 3s if you must... It would be a lot more fun to fly regardless the esc would or wouldn't work

Thanks for the advice! I already have 8 pieces of 1300mah 2S batteries, that's why I was hoping it would work on 2S's, so I can conduct testing and configuring until I order the 4S's.
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#14
Biggles generalized a bit, most 3S (or more) rated ESCs should work on 2s. Just made a video for You, first is 3s, then 2s and 3s again on XM20A:



I may also confirm that the FVT Littlebee (aka. MRM Zeus) ESC, which is also 3s-4s rated DO indeed work on 2s. I checked that also on the same 2s pack.

If You really want to use Your current packs, You could connect two 2s packs in series for them to act like a 4s pack.
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#15
(19-Apr-2016, 10:31 PM)Konrad Stepanajtys Wrote: Biggles generalized a bit, most 3S (or more) rated ESCs should work on 2s. Just made a video for You, first is 3s, then 2s and 3s again on XM20A:



I may also confirm that the FVT Littlebee (aka. MRM Zeus) ESC, which is also 3s-4s rated DO indeed work on 2s. I checked that also on the same 2s pack.

If You really want to use Your current packs, You could connect two 2s packs in series for them to act like a 4s pack.

Wow man, thanks a lot for your video!

And yeah, you are right! For testing purposes I could connect 2x2S packs in series to get the testing done! Great idea, hadn't occurred to me.

Really grateful for all your info guys, you provided lots of invaluable information that really, really helped.

Btw, what FC are you using, I can hear the same arming sound my JJRC X1 produces when it arms (:
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