Eachine racer 180 with tilting arms (In early construction) - RC Groups
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Aug 10, 2016, 06:39 AM
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SeByDocKy's Avatar
Mini-Review

Eachine racer 180 with tilting arms (In early construction)





ALERT: THE SWITCH C CAN APPLY THREE DIFFERENT PITCH OFFSETS FOR THE ER180 (+45deg/0deg/-45deg). AFTER SET IT IN UP POSITION FOR THE RADIO POWERING , BE SURE TO SET THE SWITCH C IN MIDDLE POSITION BEFORE TO ARM/TAKE OFF THE ER180 IF YOU WANT TO HAVE AN HORIZONTAL STABILIZATION. MORE THE OFFSET IS FLIGHT MODE DEPENDENT. SOME DRIFTS CAN BE INTRODUCED WHEN CHANGING THE FLIGHT MODE WITH THE SWITCH B PROCEED LIKE THIS UNTIL A MORE CLEVER SOLUTION WILL BE FIND AND INDEPENDANT OF THE FLIGHT MODES


Disclaimer (inspired from SP) Product specifications and quality may vary at the manufacturer's discretion, and are beyond my influence. I cannot guarantee you will get a product that performs exactly the same as seen and described in this review. Please, no savage affiliate links! By the way, in contracdiction with some other reviewers, I open a new mini-review thread ONLY when I have the machine in hand ....

INTRODUCTION

The Eachine Racer 180 is the first "cheap" RTH FPV racer with tilting arms. Instead of titlting the FPV camera, here only arms are titled around their main axis keeping the central body flat and horizontal. Unfortunatly, it's just a preview since I broke some elements during my first demo flight (linked with the above alert)

BOX CONTENT

+ 1 x Eachine Racer 180 (with a 4S 1100mAh LiPo with XT60 connector)
+ 1 x Transmitter (using 4xAAA batteries not included)
+ 1 x Charger
+ 4 x Spare props (2 CW, 2 CCW)
+ 1 x 5.8G RHCP cloverleaf antenna (4 leaves)
+ 1 x Wrench prop tool
+ 1 x Set of stickers
+ 4 x AA rechargeable Ni-Mh batteries
+ 1 x Spare canopy
+ 1 x Instruction manual (English)

OVERVIEW

The design is a classic H model. Here we have a 180mm machine.

-Front view










-Side view








the left side welcomes the microUSB port and the PWM receiver plug coming from the FlySky i6





Two latteral LEDs bars are connected via a mini JST-SH connector



-Rear view





The RP-SMA connector is not protected from a potential rear crash... so super easy to break (and it happened to me unfortunatly )






-Upper view




A lot of room available to welcome a longer 4S battery




-Bottom view

the main servo motor controling the arm tilting. No information about its caracteristics





just behing, the FlySky i6 receiver with PWM wiring. Notice the channel 2 is directly connected/controlling the servo motor....
We will see the consequences, but it's not a super good idea



-Weight





561g !!! in total... super heavy for a 180mm machine ... even with strong 2205 motors




Motors

Strong 2205 motors announced to be 2350KV








5mm of shaft section



Default props are some 4045BN triblades models





Unfortunatly, 5" models can be installed




LiPo

A 1100mAh 4S model with plastic easy grab for the balancer plug








Camera module


A 1000TVL camera. No information about the light sensitivity. The FOV is around 110 deg in diagonal... so not a super wide FOV



The mini switch on top is to select between NTSC/PAL modes



Unfortunatly, before my first flight test, the camera became out of service... I don't know really why ? I measured the voltage given by the VTX to 3.83V. When swapped with another camera, the FPV link came again


Video transmitter


The transmitter is a Boscam TS5823S model



The FPV camera is directly powered via the VTX. 3.83V is measured.



The role of the 6 dip switches is not given in the instruction manual. Here is the full list of frequencies and bands

Last edited by SeByDocKy; Nov 01, 2016 at 02:28 AM.
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Aug 10, 2016, 06:44 AM
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Transmitter

A rebranded FlySky i6 transmitter. To enter into the setup, you will have to press inner both horizontal trim buttons while powering the radio



Be default, the throttle fail safe is not set. Default switch assignations to channel are switch B with channel 5 (controller the flight mode) and the switch C with the channel 6

Good news, a set of four rechargeable Ni-Mh accu are given





FIRST USAGE

My first idea was to overide the tilt offet by assigning on the radio channels as follow



With this idea, the pot is controlling the default offet. Funny when the offset is not perfectly tuned on the 1500 value, the machine is bent forward or backward in the air. As soon as you center the pot, the machine is aligned horizontally

Unfortunatly, I broke after 3-4min the machine coz with my new assignation, the switch C controls the flight mode and set in Cleanflight 3 flight modes: angle, horizon (rattitude) and acro. The first few minutes was ok but for sure, the ER180 is not super powerfull. The 561g is a lot even with 30A ESC, 2205 motors and 4045BN props. In fact, I think some 5" or aven 6" should give much more power but in practice the frame don't allow such size of props. So as soon as i switched to rattitude, a negative pitch offset was here and the quad in 1s crashed strongly in the ground. I broket the VTX connector ... and the main servo motors



More it means than the central pitch offset is flight mode dépendent.... or more some flight modes can be used with this actual design ... It's Under investigation


Good news I received another model and I was able to perform more flight testing

Eachine Racer 180 first demo flight (Courtesy Banggood) (10 min 18 sec)



For the positive points, this machine can be super fast while staying perfectly horizontal, a kind of super lunched rocket The FPV CCD 1000 TVL camera works beautifully. For sure this machine can be seen as a ballistic missile where it should be more easy to pass through airgates at full speed. Some "strange" behaviour can be observed at full speed when you try to do an hard turn. The machine can be completly unstable. This is probably the reason why default rates for pitch & roll are set to 0 and for yaw to 0.2 respectively... The last value won't allow a fast turn. Since I increased all at 0.6... it's probably a direct consequence of my choice. Except this phenomena, the machine flies beautifully.... Flying duration are about 6min with the 4S 1300mAh battery. As expect if your turn the switch C in 0 or 2 position at take off, you will the front and rear not lifting at the same time. It's fun to see.


CONCLUSIONS

The Eachine Racer 180 introduces here the interesting concept of tilting arms. With this principle, the racer is a kind of air's dragster to reach horizontal top speed. In another hand, if you are looking for an acrobatic machine, the ER180 is not the right choice. No really effective acro flight mode availble. 99% of elements are strong and efficient (nice FPV & VTX part for example) but the Achilles' heel is certainly the servo motor controling the arm tilting. It's strongly advise to stock some spare ones in advance coz even with a moderate crash, you will probably strip the builtin gear mechanism.

UNBOXING

Eachine Racer 180 Unboxing and quick analysis but ...(Courtesy Banggood) (19 min 0 sec)


PROS

+ CCD Camera
+ SPF3 board
+ Oneshot 125 compatible 30A BLHeli ESC
+ ESC upgradable via BLheli suite
+ Strong Carbon structure
+ Comes directly in 4S
+ Ni-Mh battery for transmitter

CONS

- POTENTIALLY DANGEROUS PITCH OFFSET VIA THE SWITCH C
- PITCH OFFSET DEPENDENT OF THE FLIGHT MODES
- Fragile Servo ... can be striped easily just after a moderate crash (need to stock spare)
- No spare servo in the bundle
- No buzzer
- 561g
- Limited vertical thrust
- VTX connector easily breakable
- Not 5" props compatible

This quadcopter have been courtesy provided by Banggood in order to make a fair and not biased review. I would like to thank them for this attitude.
You can find it actually for 250USD at http://www.banggood.com/Eachine-Racer-180-FPV-Drone-F3-6DOF-350mW-5_8G-40CH-VTX-1000TVL-CCD-Camera-w-I6-Remote-Control-RTF-p-1075386.html



TILTING ARMS MODE CONFIGURATION

A great job from kopterheld


"I fixed the Eachine Racer 180 for flying in Tilt Modus or real Pitch Modus oder a hight speed mixed Modus with Tilt and Pitch. The SWC switch I’m using for Acro, Horizon and Air Mode. All works with my Flysky i6 transmitter. Also it is the same transmitter as the original.

Three simple steps by using the Mixer on the Transmitter:
1. activate MIX #1
2. set Master CH2 (tilt-rotor)
3. set slave CH6 (my Pitch)
4. set positive mix to 100%
5. set negative mix to 100%
6. save
Now you have with the active Mix #1 a mixed Modus with tilt-rotor and pitch are active.

If you need a real pitch modus, so activate the MIX #1 and the MIX #2 on the Transmitter
1. activate MIX #1 (settings see above)
2. activate MIX #2
2. set Master CH2 (tilt motor)
3. set slave CH2 (my Pitch)
4. set positive mix to -100%
5. set negative mix to -100%
6. save

Thats all. Now you can fly with Air Mode (Acro Mode) with inactive tilt-rotor mode.

Now I can flying with Eachine Racer 180:
- in „tilt-rotor mode" with tilting drone forward/back by stick if MIX#1 and MIX#2 are off
- in „mix mode" forward/back with tilt and pitch by stick if MIX#1 is on and MIX#2 is off
- in „classic mode" forward/back with only pitch by stick if MIX#1 and MIX#2 are on.
It’s works well.

This is video on German but you can see the configuration on the transmitter.
"




Eachine Racer 180 Tilt Rotor - Tilt - Pitch - oder Mixed Mode (2 min 43 sec)
Last edited by SeByDocKy; Jun 05, 2017 at 02:10 AM.
Aug 10, 2016, 07:09 AM
Fan of just about anything RC
SoloProFan's Avatar
Tilt motor control. Hope it will not make it too heavy. At least they went 3 blade with the props right away.
Aug 10, 2016, 07:25 AM
Registered User
SeByDocKy's Avatar
Quote:
Originally Posted by SoloProFan
Tilt motor control. Hope it will not make it too heavy. At least they went 3 blade with the props right away.
And 4S .... but no info about a buitin buzzer and OSD ..
Latest blog entry: Youbi XV-130 130MM FPV Racer
Aug 10, 2016, 08:20 AM
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Danq0's Avatar
Quote:
Originally Posted by SoloProFan
Tilt motor control. Hope it will not make it too heavy. At least they went 3 blade with the props right away.
I know right? 180 with tilt motors... must be really small servos, because at this weight, every gram matters
Aug 10, 2016, 09:33 AM
Time For Me To Fly!
fastmax's Avatar
Definitely looks interesting. Looking forward to your review.
Aug 10, 2016, 10:36 AM
Quad Erat Demonstrandum
scousethief's Avatar
2205's ? Surely and 1806 would be a better choice for a 180 your just carrying metal at 400g without battery that puts this at the same weight as its 250 predecessor and that has a metal plate on the bottom. She's gonna be a pig.
Last edited by scousethief; Aug 10, 2016 at 10:43 AM.
Aug 10, 2016, 10:51 AM
Fan of just about anything RC
SoloProFan's Avatar
That's probably why they went with 3 blade and 4S right from the start. I agree it's still quite heavy for a 180, even the Falcon 210 is under 400 with battery.
Aug 10, 2016, 11:06 AM
Quad Erat Demonstrandum
scousethief's Avatar
Won't help it much at that weight really , like putting a ford focus engine in a transit van. We'll see how it goes but there are 1806 motors a bit lighter which could do the job just as well, probably just trying to shift a glut of 2205's
Aug 10, 2016, 07:57 PM
Registered User
Quote:
Originally Posted by SoloProFan
Tilt motor control. Hope it will not make it too heavy. At least they went 3 blade with the props right away.
I Wonder how durable the mechanism itself will be...
Aug 12, 2016, 03:21 AM
Aaron qin's Avatar
Quote:
Originally Posted by SeByDocKy
And 4S .... but no info about a buitin buzzer and OSD ..
Built in low voltage alarm
Aug 12, 2016, 03:31 AM
Registered User
SeByDocKy's Avatar
Quote:
Originally Posted by Aaron qin
Built in low voltage alarm
Good
Latest blog entry: Youbi XV-130 130MM FPV Racer
Aug 12, 2016, 03:37 AM
Registered User
Quote:
Originally Posted by Aaron qin
Built in low voltage alarm
Nice!
Aug 12, 2016, 04:30 AM
UAS
On it's way to diydrone. Will update.
Aug 12, 2016, 04:45 AM
Fan of just about anything RC
SoloProFan's Avatar
Quote:
Originally Posted by UAS
On it's way to diydrone. Will update.
You already have shipping confirmation?


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