Jcb's Quad copter Project,

[dstivens]

the motors are hacker Style Brushless Outrunner 20-50S
i use 8045 props.
and use a multiwii lite CRIUS MultiWii Lite Edition Flight Controller v1.0 for mini Quadcopter $16.72 Free Shipping @GoodLuckBuy.com

i think the arms are 6mm but i cant remember how heavy they were, i think its close to 500g flying weight. To be fair i could save alot of weight on the arms and the center plate but wasnt sure on the stiffness of the design and may swap the ali center plate for a glassfiber one. it flys pretty well and hovers at less than half throttle which is pleasing. just need to learn to fly the thing better now haha.

I also have a hexacopter which is one of these Flyduspider Hexacopter Frame Set which is really nice but a bit scary to fly and expensive in props if it all goes wrong.

something id suggest is not to use connectors between your motors and esc's as ive had one work loose before which isn't good mid flight. I think other people have had this issue before also.

[jcb121]

Cool, I've got a a set of 1200k and 2200kv motors.

The 2200kv motors can apprently draw 342w so I bought some buff ESCs but they're kinda redundant now and just heavy as they have a proper heat sink on them.

I'm using a kk 5.5 blackboard with kaptain kuk 4.7 firmware and I have an issue with it. when I increase the throttle, one of the motors will spin up and then stop again. I think it might be something to do with the frequency of the chip not playing well with the esc chip :S

what size battery do you have and what sort of run time do you get? I was a bit horrified when I looked at ecalc and it said I would have 5 minutes of flight!

[dstivens]

from what ive read it seems the lower the kv the better? i used to use a kk board but i found the multiwii boards iare far more stable, especially when in stable mode (would you believe!). plus you get a nice gui to program them with which is nice

i have heard of issues with the esc update speed being too slow and making it to slow to react to small changes but not of your problem sorry. maybe your gyros need reversing or something? i do remember messing about with my kk board for quite a while before i got it to work right.

my hex has a 4000ma 40c battery and it seems to last about half hour not sure about my quad ive only flown it briefly before the wind got the better of me. when i get home tomorrow ill get some photos of stuff for you.

[Philly]

I designed a flight controller for this very purpose, just not finished building the quad yet :)


Got the boards, just waiting for parts so I can test, its 10DOF and is GPS ready :) Its 5cm x 5cm.

[jcb121]

That looks very nice! will you be basing your firmware on the code already available?
I was thinking about making a flightboard, if you board works with gimbals and such then I might be interested :)

i just took the wrapping off my ESCs and they have pads for programming it! win! gunna put Simonk Firmware on them :)

[jcb121]

So flashing went successfully, they're much better with the new firmware and the throttle works properly.

I kinda almost finished my new arm,



but as you can tell it's unfinished,
I had a little problem with it in the CNC. a structural issue that I'll learn from on the next model!


Each side takes me about 5-6 minutes to do, but changing the tools and re-finding zero can take ages. I need to develop a manufacturing process :) and what order I do operations in.

[Jonathan]

Each side takes me about 5-6 minutes to do, but changing the tools and re-finding zero can take ages. I need to develop a manufacturing process :) and what order I do operations in.

It would be easy to make with a rotary tale and tailstock, but not really worth getting one for just these parts. Have you done any analysis to see if they're strong enough?

[Philly]

That looks very nice! will you be basing your firmware on the code already available?
I was thinking about making a flightboard, if you board works with gimbals and such then I might be interested :)

i just took the wrapping off my ESCs and they have pads for programming it! win! gunna put Simonk Firmware on them :)

It was desined around the Multiwii 2 code and has extra pins broken out for gimbal usage etc :) I'll dig one out and take a photo for you :)

Arms are looking good now, I'm not patient enough to make them, I bend too many :D

[Philly]

Knew I had a pic somewhere :)

[Fivetide]

Wowo awesome mate .. you thinking about selling the frames when you have a fully working flyer , my Dads been looking for a project like yours to put together..?