I thought another update was due.
I have spent more money............
to satisfy my urge for a quad that was reliable.
My numerous poundings around the yard appeared to have damaged the DT750s and the plastic gemfan props. The quad became unstable, again, to the point I lost control and a pot plant assaulted the quad resulting in bent shafts and broken props.
Back to Mongrel Gear for the good stuff, new Bird Dog 900kv motors and carbon 9x5 props. Now it just hums along with factory settings on the KK2.0 v1.5, excepting Roll/Pitch PG at 30. I have put 6 battery packs through her now and even in 15kt wind she is easily managed. I have also graduated from the yard to open paddock, love zipping around at knee height
.
So far the original cost has doubled to get to this stage, just wish I had gone down the known path originally.
Cost of the current setup:
HK frame - $12
KK2.0 board - $30
HK SBEC - $6
Bird Dog 900kv x 4 - $97
Bird Dog 9x5 carbon props x4 - $35
Bird Dog 30A Opto ESC x 4 - $80
For a total of $260.
A few things I have learnt on the way.
1/Use ESCs that have SimonK firmware.
2/Balance the props AND motors.
3/Mount the controller firmly with a little vibration dampening, rely on 2/ for vibration reduction.
4/Resolder any pre "tinned" wires, 60/40 solder does not mix well with 100% factory "tin"
5/CG is important althought the controller can handle small variations.
One more important aspect of the upgrade, my flight time has gone from 5-6 minutes to 12-14 minutes using the same 3S 2650mAh 20-30C pack