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X8 build, the final chapter I finally found the magic combination that has turned the X8 into what I had hoped for when I started this project. First mistake, using a Hoverfly pro board, just like when I had it on a quad the board proved to be nothing but headaches. The combination that...

I've been playing with PID tuning on this thing all afternoon and while I've gotten it to the point that it can be flown, no amount of tuning makes it completely wobble free. Only thing I can figure is the firmware isn't playing nice with the speed controllers I'm using, the quad flew nicely...

The sensors aren't that expensive, the bigger challenge is getting the existing one desoldered and removed without ripping out a pad or trace. Since its junk anyway if I were going to replace it I'd just snip all the legs and carefully remove them one by one by heating and gently pulling it up...

My Quadrino board arrived today, swapped out the KK controller on the VC20 430mm frame and did a maiden flight in the backyard as the daylight was fading. Its got a severe case of the wobbles, if this were the KK controller I'd just tweak the gain pots a bit to settle it down and be flying. Not...

I own both Mk and Hoverfly, read my comments about Hoverfly in my X8 build thread here... http://www.multirotorforums.com/showthread.php?247-X8-build/page3 and you'll find out exactly what you'd be getting into with a Hoverfly board. In my opinion if you're looking to build professional quality...

I'd use something a bit stronger than copper, that can fracture easily from vibration as well. Go the local Radio Shack and pickup a cheap package of resistors, cut a piece of the wire off the end and use that, much stronger. The pressure sensor on my first MK F/C board has been mounted like...

Some of the advantages of the coax design, redundancy, if one motor fails it is not typically catastrophic like it would be with a regular quad losing a motor, you can generally get it back on the ground without crashing though you may not have the same level of control as you do without a...

So I never did get enough response to make doing a group buy worthwhile, but since I first posted this to the forum we now have another source in North America for the Spektrum diversity board for a better price than the other source. Still a bit more expensive than what I paid for the first one...

With the price of motors these days I don't see much point in rewinding and swapping beaings on low buck versions. My solution is to just stop buying from sources that I know have really crap motors. The only time I use really low buck motors these days is on my little KK aerobats, I buy a set...

If you're really daring load up the latest version of firmware, use Points of Interest and set it up to autoland at the end of the route. At least that way you might be able to grab control of it if it decides to go walkabout or fall out of the sky for no good reason. :rolleyes: Ken

I wouldn't fly a camera that costs thousands of dollars with ANY motors! The saying goes, "don't fly with any camera you aren't willing to lose". Since I'm a cheap SOB when it comes to things like that the most expensive camera I hang under any of my multis cost less than $400. ;) That said I...

So I have to ask, are you the Gary Mortimer that writes the articles for suasnews or is it just a coincidence that you have the same name?

Learning FPV with an Mk is actually pretty easy especially if you have Navi and GPS. What I did the first couple of times was setup a waypoint route that made a circle around a large open field (the RC Heli club flying field) with the first waypoint close to the takeoff point with a fairly long...

For the $100 US they want for the big MK motors I'd still go with AXI if I had that kind of $ to spend, just a better quality product and about the same cost. If I was looking to save some $ I'd go with the Avroto. Ken

You don't need to take the landing gear off to recalibrate. To do the accelerometer calibration I leave the landing gear on and just sit the whole MK down into a cardboard box so that arms rest on the top edge. The important thing is that the flight controller and each arm be as level as...

In this case I don't think it's that simple but if you have some you could try, don't be surprised if it makes no difference...

Yup, try it again with original cables and I think you'll find they work fine...

Cabling, seems they only like to work with the supplied cables. When I hookup any of the AV cables I use for the Fatsharks they go crazy as soon as the motors spool up, switch back to the cable that came in the box and everything works again. Only thing I can figure is its either an impedance or...

Yes, I have the basic Fatsharks and trying to look over them is totally impractical, for me anyway. Just about any decent set of goggles is going to limit you to the view you see on their screens, probably the best thing to do is take off with the goggles on your head, get the MK in position...

Perspective Aerials seems to be quite good at stirring up controversy, take a look at this... http://www.rcgroups.com/forums/showthread.php?t=1325233&highlight=perspective+aerials Ken