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Andy7:
24 Aug 2019 19:21:05
 ~~
Gaza07:
23 Aug 2019 19:26:42
I agree it does look a lot better for some reasom SMF shorten any recent posts display  :rolleyes:
Andy7:
23 Aug 2019 10:29:15
Nice! Looks loads better.  :beer2:
Gaza07:
22 Aug 2019 22:47:32
Sorted mate  ~~
Andy7:
22 Aug 2019 10:27:36
Sure. But basically, all the subjects are getting cut off.
Gaza07:
21 Aug 2019 18:14:54
Can you pm me a screen shot of what you mean
Andy7:
21 Aug 2019 12:15:41
Gaza - can you make the subject line section in the forum topic list wider? It's cutting off the subject field really short.
Andy7:
19 Aug 2019 09:14:20
Good for you!  ~~
DarkButterfly:
18 Aug 2019 19:13:57
Had another negative encounter, it's been a few years since the last one, just an uneducated ******, going on about drones being illegal yada yada yada.    :-/
Still that didn't spoil my flying time, had an absolute blast  ~~
Gaza07:
07 Aug 2019 19:52:01
ooooh mrs jones  :D
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3d - Printworx

Printing 3d Forum

Self Build Y6 800ish

Started by steve fh, Saturday,August 10, 2013, 18:05:43

Previous topic - Next topic

steve fh

Well after much deliberation about what configuration of machine to build, which size and what frame to buy I finally settled on a Y6

Though i like the idea of buying a frame set i really can';t wrap my head around the prices of most off the shelf frames compared to the actual value of what you get, so i';ve decided to scratch build.

Other advantage of a scratch build is the ability to try different layouts and sizes at little cost.

Finally cut some parts last night.... 2.5mm glass fibre board from Ebay and 16x16x1.5mm square tube from B&Q



and next to the current spider 620 for comparison



I';ll add more as the build moves forward.


BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

steve fh

Some progress today.

A session on a pillar drill at work got all the arms drilled for hub and motor mounts and two new Tigers arrived to go with the four i already had.

One last flight with the quad and then started taking bits off and trying for size on the new frame.



BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

steve fh

Stripped down the trusty Spider this morning. These are great frames and it';s survived some major crashes and abuse.







Finding this de lamination on the power board has made my mind up that the Y6 is having a harness

BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

steve fh

Progress feels very slow but lots of decisions to make re layout of parts as i want it clean and simple.



After a frustrating evening making a power harness with a soldering iron that on the blink i concluded that the harness was too messy. I';ve tracked down a distribution board that can handle 8 ESC';s at 20A (my motors pull around 16A at 75% on 4S) to which i plan to add a positive bridge just to be safe

The old board is in place for now for set up of wire lengths and mounting holes etc.

BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

steve fh

Motor wires need shortening once i finalise the layout but it';s ready to go. (Temp landing legs)



BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

steve fh

Well after a frustrating day yesterday after a school boy error with ESC labelling it has taken to the air.



BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

steve fh

The 215mm landing legs have just arrived from Quadframe.com so that';s this evenings project sorted out.

Impressed with the service from quadframe.com  5 days from order to delivery including the bank holiday weekend
BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

steve fh

The new legs went together perfectly and give loads of clearance.





BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

teslahed

That looks amazing - i bet you';re pleased :smiley:

Are the motors on the Y6 the same as the spider? Given the sizes are similar i';ll be interested to hear how flight duration and performance varies between the two.
One circlip short of a quadcopter.
 1 lobe short of an antenna.

steve fh

BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

Calomile

Flies really nice man, I';m amazed at how well Y6s handle! Great build  :notworthy:
I reverse polarities for fun.

steve fh

Quote from: teslahed on Sunday,September 01, 2013, 12:11:49
Are the motors on the Y6 the same as the spider? Given the sizes are similar i';ll be interested to hear how flight duration and performance varies between the two.


The quad with gimbal a 4000mah 4S and Sony cybershot weighed 2400g and gave 8min of hover type flight before Naza 1st stage battery warning kicked in

Y6 with gimbal, gopro and 2x4000mah 4S weight 3400g and i just got a 9min of hovering about before Naza 1st stage warning

Both set ups were with the MT2814-10 with 11x5 Xaor props

The quad flew very heavy at 2400g and you had to pay attention as it would drop like a stone given the chance, the Y6 has loads in reserve at 3400g and climbs like a rocket

BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

steve fh

Tuesday,September 03, 2013, 00:21:22 #12 Last Edit: Tuesday,September 03, 2013, 00:28:16 by steve fh
Spent the evening with the soldering iron tidying up the wiring and fitting the 5.8ghz TX for down link from the Gopro





I';ve decided to power the 5.8tx and, when it comes the Brushless gimbal, from a separate 3S 1000mah Lipo as it keeps things simple and reliable.
BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

steve fh

Carried out a test flight with two new 5000mah Turnigy Lipo';s yesterday. Result is 13m of usable flight time with the Gopro and gimbal on.



BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

Gav

after watching your church youtube video I am in awe with your setup - Absolutely fantastic video results from such a craft.  nice job -  I think you';ll get a lot of enjoyment from it mate.

mogwai101

I have just read this thread with great interest.
Looks very good.
At the beginning you say you had decide on Y6 after a lot of deliberation.  Please share with us what issues you were considering and how the Y6 came out top.
What material are the arms made from?
Tks

steve fh

Thursday,September 12, 2013, 22:58:18 #16 Last Edit: Friday,September 13, 2013, 11:29:46 by steve fh
Quote from: Gav on Wednesday,September 11, 2013, 23:03:27
after watching your church youtube video I am in awe with your setup - Absolutely fantastic video results from such a craft.  nice job -  I think you';ll get a lot of enjoyment from it mate.


Thanks Gav.  It';s got your Skew aerial on it which works spot on
BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

steve fh

Monday,September 16, 2013, 22:33:59 #17 Last Edit: Wednesday,October 02, 2013, 10:10:09 by steve fh
Quote from: mogwai101 on Thursday,September 12, 2013, 17:19:03
At the beginning you say you had decide on Y6 after a lot of deliberation.  Please share with us what issues you were considering and how the Y6 came out top.
What material are the arms made from?
Tks


Arms are 16x16x1.5 ally from B&Q

So Why a Y6......... well many small reasons (including they look cool) but the main ones were

1. General reading seemed to indicate that Y6 is more stable in wind (which in the UK is a big factor as i';ve specifically built this as a film platform)
2. The way i';ve designed it 2 bolts come out and the Arms fold back making it easy to transport (I';ve also made it easy to remove the landing gear)
3. It has more chance of landing upright if a motor or esc'; failed in flight which again is a big consideration with £££££ of camera under it
4. Wide angle means no props in shot with no need to push the gimbal out front and counter balance with Lipos

The only real negative with the Y6 it';s less efficient than a flat Hex, but the difference in the real world does not seem much and I was able to get the flight duration i wanted without going to huge Lipos









BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

teslahed

I always wondered about the benefits of a Y6 given the loss of efficiency - but that sounds perfectly reasonable.

Losing a min or two of flying time is nothing if it means the time you do get provides better quality video. And they do look cool ~~
One circlip short of a quadcopter.
 1 lobe short of an antenna.

steve fh

Tuesday,September 17, 2013, 00:44:22 #19 Last Edit: Tuesday,September 17, 2013, 00:54:58 by steve fh
The biggest challenge for me was deciding exactly what sort of flying i wanted to do. Once I';d pinned that down the machine config and design was fairly easy.

Acceptable flight time and frame layout all depends on what you are trying to achieve.

For FPV it';s important to have a long flight time as the flying is all about air time and good sparation ofFPV and flight gear for good range

For a film or camera platform it';s more about nailing a specific shot you went out to get which generally requires less time and you are generally flying LOS with the FPV only for framing shots so range is less of an issue.

Once i knew it was going to be a camera platform, reliability, vibration isolation, and smooth flight characteristics became the lead criteria at all design stages. I did a lot of reading on flight characteristics and  vibration isolation and that drove the overall design.

The Burrow Mump footage was shot with some props out of balance as i';d just bolted them on for flight testing so the reading up on vibration theory paid off or sure.

I also wanted it to be rugged and easy to fix in the field which also affected the layout. IE ESC';s out on the arms and no parts hidden deep in the frame under multiple stack plates. Also given that weight is the enemy i';m always amazed to see designs with say a separate ESC deck as they may look tidy but they just add weight

BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

e.chipev

Awesome DIY multi,
Can you share your gains if possible...
I did something similar.. converted diy 800mm+ flat hex to y6 (to reduce weight and add some safety) and I got in the air this morning using the gains from old hex.. it flies :) but I want to compare.
Regards

Evgeni

steve fh

Quote from: e.chipev on Monday,September 30, 2013, 09:44:21

I did something similar.. converted diy 800mm+ flat hex to y6 (to reduce weight and add some safety) and I got in the air this morning using the gains from old hex.. it flies :) but I want to compare.
Regards

Evgeni


Hi Evgeni.

I like my multi';s to be a bit floaty as i find this give smother video as the machine is not making to many aggressive adjustments

To achieve this i run low main gains and high ati gains.

Current set up is 100% on roll and Pitch with the Atti at 170%

Be careful though as with these low gains the machine is nearly un flyable in manual as the main gains are low for a machine this size



BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

e.chipev

Wednesday,October 02, 2013, 10:37:08 #22 Last Edit: Wednesday,October 02, 2013, 10:40:21 by e.chipev
Thanks Steve,
I started from 85% main gains and 125% on the atti then jumped to 110% all the way except yaw(90) and vertical (160).. when there is an input from the radio everything is perfect but when naza gps is in control it just makes a lot of corrections to remain stable.
I will try 100 % basic and 125%+ atti
Do you use 100% all the way(..yaw, vertical)?
Thanks again and many safe landings!
Regards

Evgeni :beer2:

steve fh

What is your take off weight ?

I did have yaw at 80% but have recently gone to 100% as it was not a strong enough hold at 80%. With yaw at 100% i have added a small amount of Expo on the TX to make sure i can still yaw smoothly.

Alt is at 80%

Try the Atti gains at 150 or 170% before you mess with the main gains
BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

e.chipev

Quote from: steve fh on Wednesday,October 02, 2013, 13:40:17
What is your take off weight ?

I did have yaw at 80% but have recently gone to 100% as it was not a strong enough hold at 80%. With yaw at 100% i have added a small amount of Expo on the TX to make sure i can still yaw smoothly.

Alt is at 80%

Try the Atti gains at 150 or 170% before you mess with the main gains


AUW - 3.6kg (2x5000mah lipos)

I tried 100% all the way on basics and.. it';s fine but today it wasn';t windy.. Will see how it will behaving when it';s windy.
With 100 % on yaw and 25% expo is turning slow and smooth(I will reduce expo to 10%)
On vertical... It';s still loosing height in forward flight when I release sticks. Any thoughts? Have you experienced similar behaviour?
I will try with lower numbers on vertical.. tomorrow.
Thanks again!
Regards

Evgeni



steve fh

Saturday,November 16, 2013, 13:21:58 #25 Last Edit: Saturday,November 16, 2013, 13:53:32 by steve fh
Spent some time today getting a feel for the Load V Flight time on the Y6

final flight was with a 2KG payload giving a TOW of 6030g

Flight time with a pair of 5000mah Turnigy 4S';s Lipos to 1st level warning on the Naza was 7.5min flying a mix of hover and gentle circuits.

My usual config is Tarot Gimbal and Gopro with a TOW of 4330g and a flight time of 11min with mix of hover and general flying about

BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk

Jumpy07

Looking good...

Havent had  my Y6 flying yet.. AUW @ 4kg with 2 x 4000 4s..  ecalc says @10mins hover.

I have been reading that a lot of people put larger props on bottom motors.. this is due to turbulence from top motor.. and this config improves flight times..  I was gonna run 10x4.7 on top and 11x4.7 on bottom..

What gains are you using on your Naza ?

BNUC-S Pilot with PfCo /PFAW.
UAQ / CAA PfCo Instructor / Flight Assessor

"All that is necessary for the triumph of evil is that good men do nothing"

steve fh

Saturday,November 16, 2013, 14:13:17 #27 Last Edit: Saturday,November 16, 2013, 14:18:29 by steve fh
Hi Craig.

Current gains are

100% pitch and roll
150% on yaw
90% alt 
Ati gains at 170%

I find this gives a good response to the sticks but it';s smooth with it';s inputs when correcting for wind etc.  However it';s a handfull in full manual with the main gains that low but but only fly ati or ati-gps as it';s a camera platform and i';m not trying to fly aerobatics.

I did have the yaw down at 90% to start with and it flew well. however i';ve had a few issues with the yaw hold not being good in gusty wind so wound it up to 150% which has helped. Though i think from all the reading i did before deciding on a Y6 that poor yaw authority is one of the down sides of a Y6 / Coaxial setups.

I';ve read a lot about the idea of larger lower props but it all seemed quite inconclusive. I currently run 11x5 Xaor all round which is the recommended prop for my 2814-10 motors.

I will try a mix of props at some point but it';s way down the to do list just now.





BNUC-S Pilot with PFAW.

www.capturedmotion.co.uk