Espritmodel.com Telemetry Radio
BigJimNZ's blog
Posted by BigJimNZ | Nov 05, 2013 @ 03:25 AM | 2,014 Views
Crashed the last tricopter so this is the new one. FC is APM 2.5.
NTM 2830 motors and 11x4.7 props. Weighs in at 900grams without battery.
FPV gear will go on for the weekend.

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Posted by BigJimNZ | Aug 05, 2013 @ 04:59 AM | 1,566 Views
Didn't like the plastic mounts. These new G10 ones are much nicer. Putting the CNC to good use

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Posted by BigJimNZ | Jul 24, 2013 @ 02:13 PM | 2,324 Views
Got new phones at work......

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Posted by BigJimNZ | Jul 21, 2013 @ 03:56 AM | 1,708 Views
Putting the home built CNC to good use.
Making a V Tail. Using polyethylene for mounting the HK quad boom clamps

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Frame in one piece. Ally boom machined for cables and weight loss
Posted by BigJimNZ | Jun 07, 2013 @ 11:52 PM | 1,900 Views
Got my H Quad flying with the HK clone of Arducopter.
Working well. Used the CN06 GPS from HK as well.
Operating in loiter in ths instance. TX on the floor and on the bonnet of the car


HQuad Loiter HK APM 2.5 (0 min 32 sec)

Posted by BigJimNZ | Apr 14, 2013 @ 05:13 AM | 2,231 Views
Bits of HK quad kit used to make this H quad. This works very nicely. Great for separating stuff when flying FPV with use of compass etc

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Posted by BigJimNZ | Apr 14, 2013 @ 12:00 AM | 2,375 Views
APM 2.5 flying my FPV tricopter. it has to because my radio is on the table


Tricopter loiter APM 2.5 (0 min 37 sec)

Posted by BigJimNZ | Apr 13, 2013 @ 11:53 PM | 2,180 Views
Trying something new to eliminate a bit of resonance for my next heavy lift Tricopter.
22mm CF with a short section of 14 mm CF cast in place with some liquid urethane. Probably about 45mm of tube inside the other. Proof will be in the eating I guess but bench tests are lookin good

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Posted by BigJimNZ | Apr 13, 2013 @ 11:47 PM | 2,361 Views
Latest tricopter activity with the RC Timer APM 2.5 running arducopter.
Flies very nicely. After trying a number of different Fc's including Naza, wii, KK and gyros I have to say this is my favourite.
Equipped with WDR Seawolf Pixim camera. Iftron 250mw VTX and home made CL antenna.
Excellent for FPV
RTL, loiter etc are very effective



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Posted by BigJimNZ | Mar 19, 2013 @ 11:29 PM | 2,773 Views
Bought the APM2.5 from RCTimer.
Made a large HQuad but it turned out a bit flexible for my liking so it has been stripped for the new version.

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Posted by BigJimNZ | Jun 28, 2012 @ 03:41 AM | 2,731 Views
Got tired of trashing my wii FC so I have made a compact version in a box.
Stacked the WMP on top of the Pro Mini. NK is at the front.
some cables to get the connection to the outside world

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Posted by BigJimNZ | Jan 29, 2012 @ 08:57 PM | 3,563 Views
Finishing off the new tricopter for FPV after losing the last one !!
BEVRC 200mw tx/rx
RCV 922 FS Camera
G-OSDII Flashed with CL-OSD ( stuck to the back of the camera anti vibe panel)

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Posted by BigJimNZ | Jan 20, 2012 @ 11:50 PM | 3,108 Views
Got tired of my battery packs being wrecked after detatching from the tri on those frequent hard landings

The velcro is from HK. The strap is back to back hook and eye.
Have fitted OSD with gps so it would be nice if it still worked after crashing...er....landing hard

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Posted by BigJimNZ | Jan 10, 2012 @ 11:37 AM | 5,788 Views
Some video of the frame in action

Tricopter At Kiwi Esplanade Mangere Bridge (2 min 2 sec)

Posted by BigJimNZ | Jan 07, 2012 @ 03:16 PM | 2,822 Views
Polyethylene tube mounting blocks. Very cheap and easy to make.
They will not break due to the durability of Polyethylene.
Lighter than Nylon and Ali.
They can be used in one piece without the need to split clamp as they squeeze up under tension from the mounting bolts.
These are 30 x 30 x 8mm for using with 16mm tube.
I run a small knurl on the end of the pipe to help the motor block grip. This can be done with 40 grit sandpaper if needed.
I have not managed to break one yet even through some spectacular crashes

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Posted by BigJimNZ | Nov 05, 2011 @ 12:26 AM | 3,549 Views
Newest and probably final yaw mount.
Polyethylene motor block rotates right on the tube
38 grams including the servo.
Flies real nice

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Posted by BigJimNZ | Oct 24, 2011 @ 04:05 AM | 3,444 Views
Near Miss Tricopter FPV .mov (1 min 10 sec)


Some early FPV with the tri
Posted by BigJimNZ | Oct 19, 2011 @ 04:33 AM | 3,498 Views
Ok some more photo's of my latest Wii tricopter.
I've changed the vibe mount again. This one is real simple and works very well.
Changed the yaw mount but the effect is the same

I'm using Polyethylene for the tube clamps and motor mounts as it is less dense than the nylon equivalent.

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Posted by BigJimNZ | Jun 12, 2011 @ 11:49 PM | 3,772 Views
Just recently made a ProgBox for the Wiicopter
This is an easy build.
The only hard bit is when the unit is first operated and the buttons need to be callibrated.

The forum this is from is in German but the main is in english and the circuit is standard for the Arduino with a LCD

See the guide here http://wiki.rc-heli-fan.org/index.ph..._Keypad_Shield

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Works like a charm and as you can see profiles can be saved and named for different flying styles
And lots of other goodies

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Posted by BigJimNZ | Apr 27, 2011 @ 01:26 AM | 4,178 Views
The video's here are of the same Wiicopter with 370mm arms.
The first has 10 x 47 props and is very stable.
Put 11 x 47 props on and it went to pieces.
If your'e having troubles with stability on your Wii machine then a change of props may be in order.

Tricopter WiiTC10x47.AVI (1 min 0 sec)


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