X8 Coaxial Quad with APM 2.5

[eyeflying]

Just thought I';d post some pics of one of my recent builds. I originally built this for aerial filming and I';ve got to say, its absolutely rock solid.

Also, I';ve had motor failure twice but didn';t even notice until the thing was back on the ground. The joys of 8 rotors! (Incidentally, the motor failures were both due to ';pilot/engineering'; errors - which have subsequently been corrected.

The GPS unit you see in the pics is a temporary one, I usually have a  Ublox LEA-6H fitted but I moved it to another project to test.

I also have a sonar sensor fitted under the gimbal - this seems to work quite well and I';ve fitted 3DR Telemetry.

Although its a brilliant aerial filming platform, its not really right for my DSLR - I think it could lift around 2Kg but not for too long!

Unfortunately, I';ll probably have to sell this Quad before it gathers too much dust 

[Gaza07]

Very nice indeed  is the flight controller one of the rctimer clones or an original diy drones

[eyeflying]

Very nice indeed  is the flight controller one of the rctimer clones or an original diy drones

It an original DIY Drones board. Bought it unassembled from Cool Components (they used to be the cheapest UK source for this board) - bit of pain soldering all those connectors - it really tests your soldering skills.

Wouldn';t mind trying the RCTimer clone though - its certainly cheap enough

[Gaza07]

I must say the frame is rather nice to which frame is it 

[eyeflying]

I must say the frame is rather nice to which frame is it 

The frame is a clone of the Xaircraft X650 - its sold by a few Chinese companies under different names. I didn';t like the canopy that comes with it so the one you see in the picture is an actual Xaircraft one.

This frame is now available in a Hex version too - I';m just about to put one together - I bought 4 but I really only want one so if anyone else wants one - let me know. I usually sell off my extras on eBay anyway!

Here';s a link to the Hex and the Quad version of the frame: http://www.foxtechfpv.com/all-multirotors-products-platypus-series-multirotor-c-79_135.html

I also have loads of spares for these frames too - I only want to recover my costs, I';m not looking to profit from selling the extra frames I bought or the spares. If I can recover my shipping costs, taxes, etc., them I';m happy 

[Gaza07]

I asked because I have been eyeing this one up for a while and as soon as I get some funds will be getting one http://www.rctimer.com/index.php?gOo=goods_details.dwt&goodsid=778&productname=  what gear are you using on yours, I see from the link you gave they have it picking up 2.5kgs 

[eyeflying]

I asked because I have been eyeing this one up for a while and as soon as I get some funds will be getting one http://www.rctimer.com/index.php?gOo=goods_details.dwt&goodsid=778&productname=  what gear are you using on yours, I see from the link you gave they have it picking up 2.5kgs 

I';m only using 850Kv motors (i-Flight) with 10" props and 3s Lipo. There';s definitely room for bigger motors but I was a little disappointed with the amount of space on the centre plate. There';s not a lot of room for any extra FPV stuff or telemetry gear. I shoved my Rx in a gap between the two frame sections. I really wanted to try out my YS-X6 on this but there';s no room for all the bits. The hex frame has much more space.

Another issue I found with the 650 frame. The motor mounts really need to be screwed up tight on the booms but there';s a danger over overtightening which could crush the CF. These do seem to work loose after a couple of flights even with thread lock. They now recommend using glue as well as bolting. This just makes it difficult to replace anything though in the event of a crash. At the moment I just check the mounts every now and again and tighten as needed - but carefully.

Xaircraft use metal inserts to strengthen the booms at the bolt points. I bought a load of these to use on my new Hex frame. That way I can tighten without fear of crushing!

Also, I';m going to change the motor mounts and use Sigma Mounts - this means bigger motors and bigger ESC';s

[Gaza07]

Thanks for the info not 100% sure if Im getting one yet but will deff get some thing as soon as I sell my helicopter