The 'Ugly Man' meets APM/AC2
The 'Ugly Man' is my mongrel, 660mm, 1.5kg, APV/FPV Quad, so named because a good friend gazed upon it and said 'damn, that thing is ugly'. This triggered an appropriate old song in my easily programmed mind (Ugly Man), and the die was cast. But, beauty really is in the eye of the beholder, right?
The 'Ugly Man' is built-up using a BQ-1 frame kit from AGL Hobbies, TRex 450 CF tail booms, extra landing gear legs from a Hoverthings VC-450 frame kit, and an X-Aircraft, single-axis camera mount. The 'Ugly Man' uses RCTimer 2830/13 850kv motors, RCTimer 20amp ESCs, 10x4.5 props & 3S3300mah TP Prolite batteries. It began life controlled by a Paris 3.0 MultiWiiCopter board, stably hauling a ContourGPS HD camera aloft, but longing for more... Most multicopter flight controller manufacturers seemed to be promising additions like GPS & Baro 'RSN' (real soon now!) for functions like alt-hold or position hold. Full-blown autopilot capabilities, yeah, right! Oh well, one can always hope.
Then one day I found myself here.
You mean to tell me I can get a fully equipped (with mag & sonar) autopilot for $350!?!? And it's supported by a constantly percolating community that provides frequent updates to both AC2 code and the equally-incredible APM Planner!?!?
I must be slipping. How could they keep this from me??
And, how can you truly experience Planner without both a 900MHz XBee Pro and a 5.8GHz FPV camera with transmitter flying along with the APM? I sure can't... Debit card never stood a chance!
Just loaded 2.0.37 AC2 code, calibrated & configured the quad, and hovered a full pack (~11 min.) in Stabilize mode. Nice neutral yaw on takeoff, with no bad tendencies. Pitch & Roll initially a little too sensitive for my thumbs. Set it down and dialed the rate in the transmitter for Pitch & Roll down to about 70% and added 30% Expo to both axes. Ah, that's very nice! Default PIDs seem to be a really good starting point for the 'Ugly Man'. No wobbles, nice & stable.
Can't wait to begin working with the more advanced modes. I've set the Walkera 2801Pro TX up for six flight modes by mixing the 3-position flight mode sw with the gear switch.
Figured I'd snap a couple of pictures before I caused the 'Ugly Man' to pull an 'Amelia Earhart' or somehow exit the flight envelope in some worse fashion.
Looking forward to sharing my experiences with the DIYDrones community.
Kevin
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3D Robotics Comment by Chris Anderson on July 18, 2011 at 12:18pm -
Great post. Welcome to ArduCopter!
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Comment by Ethan Ferrell on July 18, 2011 at 12:39pm -
Doesn't look all that ugly to me honestly.
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Comment by Don Cramer on July 18, 2011 at 2:05pm -
Looks like a very nice build!
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Comment by Helldesk on July 18, 2011 at 2:17pm
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Very neat work! That means the Ugly Man is a beauty.
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Comment by Bernard Michaud on July 18, 2011 at 6:33pm -
I think it looks like a sculpture of some kind.
This is technical art. I almost can feel the performances.
Seriously, very nice work and the look of this thing is .... stylish in a sens.
No uglyness here.
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Comment by nubli hashim on July 19, 2011 at 12:57am
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beautiful dude. it really is. mine was too far uglier. I hope I can build a new one as pretty as yours.. very neat too
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Comment by Axure on July 19, 2011 at 4:32am
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Video! We want a video! :)
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Comment by Jeff E on July 19, 2011 at 7:12am -
This looks more like a production copter. If I build one it wont even reach description of ugly :) . I like your idea on the landing gear. Thanks for sharing.
Hope to see video too
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Comment by Kevin Lincoln on July 19, 2011 at 7:57am -
Thanks, guys!
I'll try to provide videos from both cameras during the coming week's 'flight tests'.
The name, is in large part, just serendipitous timing - a phrase, a song, and it stuck.
My eye has always beheld the beauty of it. I like Bernard's description - technical art
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Comment by Veikko Vierola on July 20, 2011 at 5:37am -
Very nice looking platform!
Maybe the landing gear wheels could also be rotating around their z-axis so you could ground taxi the A/C to all directions :)
Here is the basic idea:
https://www.elfaelektroniikka.fi/elfa3~fi_fi/elfa/init.do?item=48-5...
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