New Stuff

Hi, welcome to Maxx's stuff, I'm Maxx and this is my stuff.

What stuff have I be playing with while it has been raining.

Quad copter stuff.

Well it has been quite a while since doing a blog and I am sure some of you are waiting to see the quad flying. Unfortunately the weather here has been pretty appalling. It has rained quite reliably on the week ends for the last few months. I have had some opportunity to test fly the quad with not too much success.
The main problem I have been having is the quad flips. I have checked the placing of the motors (as there are many conflicting posts as to the motor layout). Checked that it is X config and not +. Reversed the sensors, and every time two motors will speed up while they lift instead of slowing. So I bought the i86L controller board while I try to figure what is occurring with the HK 2.1. This board works really well out of box, but I have found that even with the gain turned right up, the thing is sluggish, it takes a good second before controls are translated, by which time the craft has collided with the kids fort in the yard.

The result is as pictured, and this pic shows after the repairing glue has dried. I did not secure it back into place while the CA was drying and now it is glued solid at this angle. When I have levelled it out I will be test flying again, with the radio rates turned right up and see if I can eliminate that sluggishness. Hopefully I will have the HK 2.1 ironed out and working by the time some nice weekend weather comes along.

Power tool stuff.

Some new stuff I have is the Hobbyking 6 in 1 machine tool. The original branding is the Unimat 1. I have wanted one of these since the early nineties when I first saw them. I had forgotten about them until I found it on Hobbyking, and at such a great price I got one. The picture shown is it set up on the work bench for wood turning. This can also lathe and mill metal, which I plan to do and try my hand at steam engines, and maybe even a schnuerle two stroke. There is a site in the U.K. that sell additional accessories as well, so there will be more bits to blog about in the future. 

So far I have just done some simple wood turning. The unit ships with some pine dowel so you can start turning right out of the box, but it is really hard to get the pine nice and smooth. I found out online that harder woods turn nicer, so I grabbed a piece from my tree out the front, a big beautiful Elm, and turned up the bigger cup, which I also made a lid for. It turns and finishes really nice, but you need to be very patient, it does take longer to turn something up as it needs to be done with a much smaller bite on the wood tool. I have some other things I am going to turn, which I will show in later blogs. I have had some of these planned before I even bought this and need to see if I can actually do it. Stay tuned.
Another tool is the cutter, which will come in handy when doing the scratch build planes. I still need to complete my Cessna180 and have my new Mini Stick from Hobbyking flying, then it will be onto the Cessna 310 from scratch. Yet to decide, Electric or Glow?
One of the guys at the club told me about converting a sewing machine to cut the wing ribs for planes. I still have the old sewing machine, but have not converted it as yet, and now I don't need to. I might clean and service it and actually start sewing, something else to add to the stuff list.

Electronic Stuff.

Another new stuff item is the Arduino from Hobbyking. They are starting to get into robotics which I was kinda hoping for in an earlier blog and they have delivered. I have so much stuff in my wish list now, it is ridiculous. Well this is going to go into my old real robots ... robot. Remember them? I bought the whole lot and they where fantastic. Played soccer, voice recognition and a really good programming interface (that only ran on Windows). Well I am going to try and revive the old robot with some new internals and see if I can get it running again. I got the LCD push button shield for testing and uploaded a program I got online to the Hobbyking website. It gives a basic test and some info about how the LCD screen works in the source code, but should be a good test for the Arduino boards. The info is not by me by the way, I just did some minor changes to make it work with the model from Hobbyking.

Video Stuff.

The last lot of "new" stuff is my new mic stand, shock mount and pop filter. This will be used for making videos and producing cleaner audio. I have had the mic for quite a while. purchased online for $15AU and it can do both shotgun and hyper-cardioid for internal audio, but it does pop really badly (or I should say I pop really badly). It is powered with a 1.5V battery and came with a quite reasonable lead. The shock mic mount put me back $15. I was planning on making one, but found that I would not be saving all that much if I did that with a piece of conduit and the fittings to make it fit to the stand still came to around $15 excluding the driving to go to the various shops to get the parts, reducers where my biggest problem.

Home made stuff!

Another addition to the "stuff", also video related is my auto prompter. I have been wanting to make one for a while, and although I am adept at using power tools, I was wanting to make something fairly cheap and easy. I got my inspiration from a Indy Mogul video clip (below), but I wanted to simplify it as much as possible and actually use "items from around the house". There seem to be a lot of videos on how to do this, but they always have some item that is a tad unique, such as a wooden box, that is not common to the average house hold (such as mine). This one is done with just a cardboard box, tape and some scrap hooping iron. There are some "extra's", and if you don’t have any hooping iron, you can usually find some from a construction site in the scrap bin, just ask for some one to get it for you, or make sure you are wearing appropriate foot ware and cloths (no thongs or shorts!). I might do a tutorial on this later, with some info on getting a good design idea before you start. I have since lined it with some scrap black cotton, thanks from the other half (thankful she is a sewer, check out her magic with cloth including this kids game board that has been published in Homespun magazine).

The Inspiration stuff.

Anyway, that is it for now, and I hope to have a bit of content over the next few months they may interest you or inspire you to try something new. Please enjoy the Indy Mogul clip on making an easy and cheap auto prompter, and my question for this blog ... Just how many hobbies do you actually have? Comment below, or write it on some masking tape and stick it to a pigeon.

 

TL;DR. Wrote about lots of new stuff and ask "How many hobbies do you have?" while listening to the Juanitos.

All original content released under the Creative Commons License BY. All other content copyrights and trademarks held by original owners.

 

My new Asus Eee PC and Ubuntu One

The new Asus Eee PC.

Well I bought myself Asus Eee PC 1015B recently. Although a very handy little machine now, I still have some fine tuning to do, especially with the power side of things.
I am sill waiting on the new RAM to arrive. I ordered a 2Gbyte stick as the specs said that you cannot use anything higher. I then found out that the limitation was due to Windows 7 starter and not a hardware one. This made sense considering the CPU is an AMD C50 dual core 64 bit and should be capable of much much higher specs. So I then ordered a 4Gbyte stick. As at writing (on the train going to work) I am still waiting for the arrival of either. It would have been nice to pop in a 8Gbyte, but I could find no one selling a single 8Gbyte stick, they all came in kits with two for 16Gbyte total. Well I figure 4Gbyte should be enough anyway with what I want to use it for.
Of course, the first thing I did was start to load up Linux the instant I turned it on. I had created a start up USB stick with Kubuntu on it ready before it had arrived.
Well, it struggled to boot, I was using an ancient 2Gbyte Sandisk and read somewhere that the unit has trouble with a particular Sandisk stick (I later learnt that this is also was a problem with Windows 7 Starter and not the hardware). I tried a newer Lexar stick, and same thing.
Well, check some hardware specs, and the Asus (now called Muaddib, from Frank Herberts "Dune", after Paul Atreides Fremen name) has a USB 3.0 slot. So I race off and get a high speed USB stick to try and load Kubuntu.
The main problem I was having was that the installer appeared to be having trouble seeing the hard drive to allocate partitions. So I booted into the Kubuntu desktop and configured up the partitions. I was then able to seemingly progress from there, I actually got Kubuntu to "install" but it would not boot. When I booted back into a live session and looked at the hard drive,it looked all normal, but just would not boot.
I then tried the alternative version of Kubuntu, followed by the DVD version, all with no luck. I was getting quite a bit worried and the hard drive light was not working, and thought it might be a bit hard to claim warranty after I had erased the windows partition including the recovery partition (wanted all that 320Gbyte I could get and was not planning on recovering to Windows 7 ... ever). I then had a thought.
What if it was Kubuntu and not the Eee PC. This did not seem logical as I had tried three different images all with the same results, but I thought, why not. So I put in an Ubuntu start up stick while I downloaded the new version of Bodhi to try. Well, lo and behold, Ubuntu loaded and ran with out a hitch. When I got Bodhi, I loaded it up and it ran great.

So, not the hard drive but something with Kubuntu. I remember I had some trouble when I was loading Kubuntu on the main system, but I did get there eventually.
I ended up loading on Ubuntu and installing the KDE desktop from the main repositories. I have quickly gotten used to KDE work flow and Bodhi/Enlightenment was starting to be a bit of a struggle in small fringe area's I seemingly have gotten used to (Similar things that Gnome shell took away as well, but another story). But with a bit of learning, I may go back to my original Linux desktop from over ten years ago, Enlightenment.
So the system is running fine, and I am writing this on the train going to and from work, which is one of the main points of getting this device. There are still people on the train who take up two seats for them and their "lap top" PC, while I sit next to a young chap and his small DELL system with no major space issues for either of us (although mine started from off quicker than his starting Windows 7 from sleep ... hehe).
The next part of this project is to get the system tethered to my mobile phone, either by wifi or bluetooth. I don't care which, just so long as it is wireless. Also waiting to see if the 4Gbyte RAM will improve both performance and sleeping, currently it cannot recover from sleep which is a bit annoying.

Final bit.

I am now writing from my desktop PC, having synced across the earlier part of the draft blog via my Ubuntu One account. This is starting to turn into an awesome little tool and I am sure I will be leasing more space in the future as my music and videos get synced from this desktop machine and my phone and the Eee. I love that I can take pictures on the phone and have them synced over to my desktop. I know Google has a similar feature, but I like that I can have my pics on a hard drive sitting on my desk available to me with out a network, that is why I use it for the Eee that is currently not on a mobile network. I can edit on the Eee and when it is on a network, it synchronises my documents.
Question, are you an Ubuntu One user? and how do you find it compared to the other cloud options out there? And if you are not one, do you use a "cloud" service? and how do you find it?

Xcopter Quad Build - Weeks eight to ten and eleven - Lessons Learnt

Hi, welcome to Maxx's stuff, I'm Maxx and this is my stuff.

Micro Quad fully loaded

Xcopter Quad Build - Weeks eight to ten and eleven and some Lessons Learnt

I have missed a few weeks, mainly because not a lot has been happening in the stuff area, just getting batteries and the balancer and other parts. The story begins with week eight and receiving the the green props and the BESC programming card and male to male servo leads, (there are ten in a pack, so enough for two multi's with some spare) nothing much spectacular and came to the door for $44.00, knocking the average over to $30.65.
I wanted the card because, well, one, it is easier to program the ESC's and two, I wanted to try out the music option on the ESC's. Programming is really easy with one of these, no trying to flick the throttle and counting etc. The music available is ... well ... interesting. It did not come with "Flight of the Valkeries" but a part of Beethovens "Fur Elise", which I selected. I also programmed the ESC to reduce power with low voltage and to have a normal start.

Week nine and I got the charger, nylon screws and nuts all for $31.84 making the average now $30.78. again nothing much here except I had to do some research on how to use the charger and have posted a good Youtube link below from Bruce of RC Model Reviews. I also mounted the controller board. I am planning on putting the receiver on top of the controller, but having it firmly mounted may be a bit tricky.

XT-60

Week ten brought in the battery and prop balancer, all for $42.12 with a final average of, $31.91. Except ... The battery (from the Australian warehouse) came with the XT-60 connector, not the JST which is on the Micro Quad. This was the first time I had seen the XT-60 and it is a really great connector. Good surface area connection and nice and firm with out having a lock (the 60 is for the 60Amps it can carry without melting). I also like that if it is hard to get apart, you can use a screwdriver without risking shorting the connectors like what can happen with the Deans connectors, which is what I use, until now.

So, for week eleven, I order a battery from the International warehouse with the JST connection and a packet of male and female XT-60, so I can convert all my other gear to XT-60. I also ordered some wire as well, along with the USB programmer for my Hobbyking radio. This cost an additional $20.89 now bringing the average down to $30.91, but adding a week to the build.

So total all up is $340.02 having spent $81.88 of that on postage. I will do a proper break down for the Quad in the next blog with the gear that was actually used on the Quad.

This does include a pretty good camera and other gear that will be used for other planes as well including a battery that will go over to the Cessna 180 as it has the XT-60, and I have already started a plan of attack on the next planes. Finish the cessna 180, start on the cessna 310, convert the 0.25 glow to electric, and get the Mini Stick done when it arrives.

Preparing up the gear for the test flights and lessons learnt.

Little IC broke it's bag of smoke

So the first thing I needed to do was charge the battery. I need to do this to check the balancing and vibration. I have balanced the props, but the motors need checking. I also have to check the motor directions and make sure they are correct. I have the battery in the garage and it is a bit dark, but I would like it charged for checking and flying first thing tomorow, being the Saturday. I plug the charger onto the car battery and plug in the battery ... in the darkish light. I set the unit to charge, and ... no battery connected!. What the???. So I turn the light on to see what I have done wrong, and that is when I see the smoke! I check the unit and battery. What I had done was two things.

1. Put the source connections on incorrect polarity. Yep, the positive gator was on the negative terminal on the car battery, and vice versa.

2. The other thing was the gator clips on the charge leads from the balanced charger where touching, causing a short circuit, hence no battery connected error.

Well, I corrected the source connections, and took care of the gator clips on the charge end and connected the LiPo ... and ... No battery connected :(. I killed the charger. As can be seen by the picture, one little IC is popped and now the device is not functional.

So, what are the lessons learnt.

1. Don't try and connect electronic equipment up in the dark!

2. Check that nothing is shorting out.

3. If a charger shows any signs of being damaged, don't use it. Throw it away as LiPo's can be volatile if not charged correctly, and a damaged charger will most likely not charge but actually damage your batteries.

How to charge your LiPo battery with the Hobbyking balanced chargers.

Well that is it for the last four weeks. Next week will be real flights, I hope. I have some test flights planned before the proper first recorded flight and a brand new and bigger charger on it's way. Along with that I bought a spare motor as well, as one of the motors do not appear to turn freely, and I am not sure if this will have an impact on performance as it does seem to run o.k.
Unfortunately I have not been well, so the work has slowed for the last two weeks (also why this is late as well), it has been a bit to cold and wet to hang out in the garage and I really need to get better for work, so I can pay for all this stuff!
So ... Ĝis Revido.

XCopter Quad Build - Week seven

Maxx's Stuff

Hi and welcome to Maxx's Stuff, I'm Maxx and this is my stuff!

XCopter Micro Quad Build - Week seven

This week was a really exciting week, I got the last ESC, Hex drivers, 2M screws and lock nuts, along with the three bladed black props all from Hobby King. Came to the door for $24.00 with an average now of $28.15 .... Except. I failed to check the hex drivers size. The smallest is 1.5mm, and I already had 1.5mm drivers and needed something smaller for the motor. You may remember from week four I needed to rotate the mount of the first motor so its wires would enter the micro frame more comfortably. So I had to go to the local hardware store and buy an entire set of Allan keys for $20 so I could get a 1.3mm, 0.9mm and 0.7mm. I think it was the 1.3 that was small enough. That has now brought the average to $30.61 ... dang, budget is now blown and will have to work hard to bring it down, and get it done in ten weeks.
The hex drivers are great, that feel really comfortable and allow good force but good control as well, superbly made, just pity they do not come smaller.
I love the props, I think they look fantastic along with the spinner, so next week I will have the green props to help with orientation while flying. Along with the screws I received means the motors are now mounted as can be seen on the picture.

I was amazed with myself, having been born with ten thumbs I did not lose one single screw or nut!
So now all the ESC's are soldered in and hot glued to the frame, the motors are mounted and also soldered. Until I get a battery, I will not be able to tell if the motors are running in the correct direction, but a quick de-solder, a swap of two leads will fix that. Next week I will also be getting the BESC programming card, servo leads and 14mm nylon spacers for the receiver.

For the video, I thought I would show something a bit different. These little guys come from the University of Pennsylvania. They are robotic and programmed to fly like this. Enjoy the tune, James Bond Theme.

 

P.S. Since I received the USB AVR programmer, I have been experimenting more with kkMulticoperflashtool and have found how to use it in Linux and all the features that come with the program. Slowly producing a Video on that so keep an eye out, hope to get it up soon.

XCopter Quad build - Week six

Maxx's Stuff

Hi and welcome to Maxx's Stuff, I'm Maxx and this is my stuff!

In today's world, I manage to have some time to learn, play, discover and tinker with new things and I get to share all that with you.

XCopter Micro Quad Build - Week six

This week I got the last outrunner and two more ESC's at $30.57 from Hobby King. Brings the average to $28.71. I thought I would use the week to prep up the solder joints and the three ESC's (fourth in the next week).
I measured out roughly the length of wire needed on the ESC three phase side. Because the outrunners need to go in a certain direction, I plan to do any direction change with the motor connections so the ESC connections can remain fairly neat. For those who may not know, to change the direction of brushless motors, you just nee to swap two of the three phases, I will most likely get into more detail when I start running up the Quad.

I have "tinned" the connections on the frame, the ESC and motor wires. I had to use cored solder as my flux has dried right out, and it is a trip to either Morwell or Warragul to get more, and I could not be bothered driving to Morwell, or waiting until Monday to get some from Warragul (I work in Warragul). But the cored stuff came out good as can be seen in the picture.

I use an old scope iron with 2mm tip. It managed to tin everything o.k. and I think it will be quite adequate when I put it all together.
Flite test have put a review up of the Micro Quad. This is the one from Hobby  King for $99.99, a bit cheaper than what I am spending, but I am enjoying the weekly products and doing little bits of research, but next week I will be showing some real building.

The latest "The list" update.

I Now need to get the USB programming lead for the Hobby King 6ch radio. This will get included in the price, but come under the "For other aircraft in the fleet", I think I can still remain on target, but I am really pushing the $30 for ten weeks. Hopefully I will get a video out about how to program the HobbyKing radio on Linux, or find a good one online.
Anyhow, hope you enjoyed the video, do a search on Youtube for the Micro Quad, there are some great videos, including this one with a crash.

Ĝis revido amikoj!

The XCopter Quad build - Week five - and other stuff!

Maxx's Stuff

Hi and welcome to Maxx's Stuff, I'm Maxx and this is my stuff!

In today's world, I manage to have some time to learn, play, discover and tinker with new things and I get to share all that with you.

XCopter Micro Quad Build Week five

Sorry about the lateness of posting again, but I had a very busy weekend. I had both my son's fifth birthday along with his mothers (Carmel of Solomon Sewing) on Sunday, but more about that later.

In week five I received two more outrunners from Hobby King and the first lot of props, coming in at $32.49 to my door, bringing the average up to $28.33. As can be seen by the picture, the prop adapter is too big for these props. The prop hubs are about the same size as the shaft, so when I show the three bladed props I am getting in week seven, you will agree that they will look good.
Thought I'd share a video from Flite Test on setting up a multi rotor including balancing. In week three I mentioned a prop balancer that I needed to order as many have said vibrations are bad for the controller board. In this clip, they discuss that even balancing the motors is important, and since I am using prop adapters, this may become important. I will be showing more on balancing when the balancer turns up in week nine.

Maxx's Cooking Stuff

Now for something completely different. I mentioned that I was busy this week end, well Sunday was made up of a lot of cooking. I cooked lunch which was home made hamburgers, followed by a Banana chocolate cake (with over 300gm of dark chocolate). Dinner included one of my special dinners of Spinach Lasagne followed with bread and butter custard pudding.
While preparing the meal, Carmel asked me if there is any other copy of the Spinach recipe, i.e. If the house burnt down, would there be a copy somewhere? The answer is no. I have it sourced from a book called "Pasta Cooking". Since there is a lot of Pasta cook books, it would be difficult to narrow down, so here is the recipe for prosperity, and the future internet archaeologists to find hundreds of years from now.
I would rate this as "Dishes high". It does have a high level of dishes and the lasagne dish will most likely require some scrubbing, so rinse as early as you can.
Prep time is around 20minutes
Cooking time, 30 minutes with oven at 200 ̊C.
Serves four.

Ingredients;

Lasagne sheets

Spinach sauce

90gm Butter
90gm Plain flour
140ml Milk
450gm (or more) Spinach
Nutmeg
Salt and Pepper.

Mornay Sauce

30gm Butter
30gm Plain Flour
250ml Milk
90gm Parmesan Cheese, grated
1 tsp French Mustard

Method Spinach Sauce
Melt butter in sauce pan and stir in flour.
Remove from heat and slowly add milk.
Heat until thick then add Spinach.
Season with nutmeg, salt and pepper.
Method Mornay Sauce
Similar to the spinach sauce, but add only 60gm parmesan cheese at the end.
Line lasagne dish with lasagne sheets. Add half the Spinach Sauce. Add another layer of lasagne sheets followed with the rest of the spinach sauce. Top with lasagne sheets and the mornay sauce with the remaining parmesan cheese sprinkled on top. Bake in oven at 200 ̊C for 30 minutes or until browned on top.

Serve with a warm bean mix in winter, and a salad in summer. This dish goes well with almost any wine, but I would watch the sweeter ones. The cheesy taste means that even a good ale (Such as a Coopers DIY English Bitter) goes well with this.

So, what other hobbies do you have that does not include RC aero modelling?

I'm Maxx and you have been reading Maxx's Stuff.

Ĝis revido amikojn.

The XCopter Quad Build - Week four

Maxx's Stuff

Hi and welcome to Maxx's Stuff, I'm Maxx and this is my stuff!

In today's world, I manage to have some time to learn, play, discover and tinker with new things and I get to share all that with you.

XCopter Micro Quad Build - Week four

Sorry about this being late. I was hoping to get a video out for every one on programming the controller board in Linux, but have had trouble getting the script done and obtaining some graphics in time, so maybe in a few weeks when we get closer to actually putting the Micro Quad in the air.

The fourth week in I finally get the AVR programmer, one motor and one ESC. I have to watch it, because every time I see ESC, I want to call it an escape, as in the escape key on the keyboard. Of cause, delivered to my door for $27.91, bringing the average to $27.30. I am going to have to be careful because the next few orders are a bit over $30. Need to do this if I am going to keep this to ten weeks, and as stated last week and additional cost has emerged in the prop balancer and as I will explain later, more tools as well.

First before all the technobabble, I am gong to talk about the motor and ESC. The motor packaging and items really impressed me. I like that for around $10 you get the motor, prop adapters (two of) bullet connectors and heat shrink. The other bit that amazes me is that this tiny little thing is a three phase motor. I was an electrician some years ago, and the three phase motors I worked on where just a tad bigger. Looking at the ESC and sizing it on the frame will mean possibly some trimming to the leads, I also noticed that the three leads coming out of the motor are over the bolt as in the picture.
This means I will need to rotate the mount with the armature so the leads will go through the hole with less stress. My allen key set does not have small enough key, so I will need to order some additional tools from Hobby King. So the next order (this will be the order for week seven) will include the Turnigy hex driver set.
The other thing is the prop adapter, I actually really like the little alloy spinner, and the props I ordered will not fit them. So, I will need to order different props, luckily (and I actually think will look heaps better) Hobby King have some three bladed 5030's in black and green, so I will also be ordering those for week seven and week eight.

Programming The AVR in Linux

I will still do a video on programming the controller in Linux, but for now I will just give a basic run down of how it is done.

The programs really needed are both AVRdude and a Java Runtime Engine, I used OpenJDK 6. Get those from your Distro Repo (Linux distribution software repository).

The JRE is used to run kkMulticopterflashtool. Grab the Windows/Linux stable version. I did not actually use this to flash the controller as there are some incompatibilities with the Linux AVRdude binary that comes with kkMulti, and the conf file is also incorrect. What I did use kkMulti for was getting the desired HEX files. It is well designed to be able to pick the desired configuration and firmware with maximum ease.
I then flashed the controller with the hex file I downloaded, being XCopter 4.7 by kapteinkuk using AVRdude that came from my Distro Repo, Kubuntu 12.04 in my case in the console .... yes the console, just makes life easier... really.
It will be some time before I get to properly test, but the flash showed no errors, and appeared to do as expected.
Anyway, please enjoy the video from Flite Test on how to flash the Hobby King Multi Rotor Controller Board in Windows using kkMulticopterflashtool, as some of you might actually be interested in how to do that, and it is easier.

The other cool thing about the AVR programmer is Hobby King have a great cheap Arduino clone and breakout shield (sensor shield) that this AVR can program if your interested in doing your own hacking.
I will be getting one with the shield when the project is over. I am planning on trying it with my old Real Robots robot from years ago, see if I can get it going and doing stuff.
Any how, thanks for reading, and keep an eye out for the video, and a question. With this Atmel programming, do you think it would be cool if Hobby King maybe started supplying some robot gear? Wheels, coasters, sensors, micro switches etc. I bet Hobby King could really bring it to market at a price that would get people in cheaply, or is it to far removed for the modern RC pilot .... your thoughts?

The XCopter Quad build - Week three

Maxx's Stuff

Hi and welcome to Maxx's Stuff, I'm Maxx and this is my stuff!

In today's world, I manage to have some time to learn, play, discover and tinker with new things and I get to share all that with you.

XCopter Micro Quad Build - Week three

 

This week is about the HD 720p Hobby King Wing Camera that came in at $42.31 delivered to my door. As you could tell, this has upped the average now to $27.09.
Awesome little camera and the quality is not to bad for a sensor so small. I like that the frontal surface area is pretty small, at about 450 mm² (4.5cm²) where most of the other camera's are about 900mm² with some up to about 1400mm², so it is not going to add to much drag. Weighs in at 32gm (listed at 29.4gm), which is a bit weighty for the Micro Quad, but we will see how we go. Battery is reported to give around 3 hours of recording, which I have to try as yet, but I've gotten in around 30 minutes all up with no problems so far with the battery.

It comes shipped with a USB cable with a mini USB end for data transfer and charging. Also has a AV lead for an external video monitor and audio. I have a small LCD monitor I use with my video camera that can be bought for around $25 on ebay. As I get into FPV I am planning on putting one of these onto my radio (heaps cheaper than goggles). They can run on between 5V to 12V (running on 12V in these pictures). I have had it running on 9V battery for around an hour in the past. I have as yet to run it on 9V until flat, so running on a small 2S LiPo will probably be no issue and time may not be a problem either, and knowing it will run on 9V means I have a very cheap back up if needed.

It has a fairly easy menu to navigate. A manual can be downloaded from the Hobby King product page, just click on files at the bottom of the product page and select the file that says "manual (link)" and follow the link in the file. One thing that is interesting is that the buttons are up, and naturally I want to put the flat surface down. Also, a tip I got from the Hobby King site for this product is how to set this to output video via the AV cable and record at the same time if it is going to be used for FPV. The modes don't have this, it is either in video mode, or picture mode. If you are in video mode and plug in the AV lead, it wants to play any recordings on the card, and in picture mode has some OSD stuff that will get in the way if trying FPV, so below are the steps, and I demonstrate it in the video.

1. Turn the unit on
2. Press the power button until you have a red and yellow light, three presses, this is the take picture with movement detection.
3. Plug in the AV cable.
4. Then as quickly as possible, pull out the cable, press the power button once to return to the Video recording setting (one blue LED), then put the cable back in. Now you can monitor and record at the same time as you can see in the video clip below.
Note, if you are too slow, the unit will just power down in about a second as shown in the video.

As for the white balance, it is good to see it can do it, but the transition is really slow. Not sure if this is the unit, or if the card, I did record this on a class 2 card, which is really slow, but managed o.k. I am planning on getting a couple of class 6's or better as recommended and see how that looks. Bruce of Xjet and RCModelReviews did a comparison between this camera and the 720p key chain, this will show a better idea of what the camera can do with faster cards. As can be seen by the comparison, the white balance does darken the ground when there is a lot of sky in the shot.

Although I am showing you how to set this to record and output for FPV, I will most likely not use this camera for FPV, this will be used as a secondary recording device for larger models providing complimentary shots in flight and be used on wings etc where frontal area will be more important.

Next week I will be showing the USB AVR programming device and showing how to program the controller board on Linux with the latest XCopter program.

More notes on week two and The List

I have been reviewing more on building multi rotor copters and many have been saying that vibrations can cause some issues with the controller, so I have had to add an additional item to the list. It comes under "Other stuff that is needed, but also used for other planes in the fleet". And that is a "Prop Balancer". In a couple of weeks I will be talking about the props and balancing, and I have had a little change in design ... but you will have to wait and see what that is.

Ĝis Revido Amikojn!

The XCopter Quad build - Week two

Maxx's Stuff

Hi and welcome to Maxx's Stuff, I'm Maxx and this is my stuff!

In today's world, I manage to have some time to learn, play, discover and tinker with new things and I get to share all that with you.

XCopter Micro Quad Build - Week two

The List.

As promised, the list of items that I will need to purchase to complete this project. All components are available from Hobby King.
Micro Quad PCB frame
HobbyKing Multi-Rotor Board
Four 2900kv Outrunner motors
Four 6A ESC's
5030 props, CW and CCW
Two 800Mah 2s LiPo batteries
Four Male to Male server leads.
2mm screws
2mm nuts
Nylon spacers
Battery Velcro

Other stuff that is needed but is also used for other planes in the fleet.
LiPo battery charger/balancer
BESC progamming card
USB programming lead for HobbKing radios
USBasp AVR programmer
720p video camera

Tools
Turnigy hex driver set
Turnigy hex socket set

Other tools and gear needed that I already have
four channel transmitter and reciever (I am going to use my HobbyKing 6 channel set)
Soldering iron
Solder
Solder Flux (Even if you use cored solder, I still recomend using addition flux)
Hot glue gun and glue.
Screw drivers

Quite a list eh ...

The XCopter Quad build - Week two.

Week two is the programming board and got it to my door for $17.98 (average so far of $19.48). It comes well packed as shown in the pictures, and many hobbiests recommend that the packaging can be used to reduced vibration when mounted into your multi rotor. It is good soft, rigid material and this would be a good use, but it will not fit under the arcs of the micro quad, so I may use a small part of the packing material only as washers, and on if needed, I plan to mount the board on nylon spacers and hope this will suffice, we shall see.


The board is powered by the Atmega 168, making it an 8 bit CPU with 16Kbytes of Flash RAM. It runs at 20MHz and is an industrial grade RISC (Reduced Instruction Set Computing) based CPU, great for our application of stabilising Multi Rotor Copters. With the USBasp programmer in can be flashed with any program. I am planning on loading an XCopter  configuration, where this controller comes with the +Copter configuration pre loaded. The best way to describe an XCopter is you have two rotors at the front, and two rotors at the rear. A Plus configuration has one rotor to the front, one rotor to the rear, with a rotor to the starboard (Right) and another to the port (left).

I was quite excited how well the board fitted into the Micro Quad frame as pictured. You will see it is mounted for a X configuration (the two small arrows at the corner point to the front), but the board also fits perfectly for a + configuration as well. I am hoping the nylon spacers will be high enough for the receiver to fit underneath. The receiver is 12mm high, but the connections are on top, so there might be some creative work required. Hobby King have some 21mm spacers and the receiver is 21mm wide, so that might be a possible solution. The radio I will be using is the Hobby King six channel 2.4GHz (mode 2).

Once I get the programming lead, which will be included in the costs of this build, I will be flashing the card to the XCopter configuration. I will be doing this through Linux, so if your a Linux user and would like know how to do this, hopefully the up coming blog will help.

So at this point, I have the Micro Quad frame and the controller board. But I did do some research and Flite Test have a great video on setting up the controller board on a Quad copter that I suggest you check out if you are just starting in multi rotors like myself.

Next week I get the camera, a pocket sized 720p hi definition video camera that will be going on the Quad as well.

 Ĝis revido amikojn! (Until then friends!)

P.S.
after writing this blog, before publication, Hobby King now provide the Micro Quad with everything except the battery and radio for $99.99

The XCopter Quad build

Maxx's Stuff

Hi and welcome to Maxx's Stuff, I'm Maxx and this is my stuff!

In today's world, I manage to have some time to learn, play, discover and tinker with new things and get to share that with you.

Allow me to introduce myself in my first Blog post. I do RC model's (planes mainly, but that is changing), computers (I am a 100% Linux user at home) and a user of FOSS (Free and Open Source Software) along with CC (Creative Commons) music and videos. I am also learning Esperanto, have been for some years, but still to sit my first exam.

Top down look. 220mm across.

The XCopter Quad build

Lately I have not been getting much flying in due to the park flyer being permanently grounded, and just not getting good weather on the rare days I have time to fly, So I am going to build a Micro Quad in the hope I can get some RC flying done in the back yard when time and good weather briefly coincide.

The plan is to purchase the parts over a number of weeks. This will increase the cost due to postage, but will give me time to research how things go together and what to expect when I go for that first flight. A bit like those build magazines you see advertised on TV.

Close up of the PCB tracks for power distribution.

The average spend per week, including postage, must be under $30.00. I say average as some items will go above this, so some purchases will be a lot less to keep the average. I should be able to do this in around ten weeks ... Yep, $300.00 all up and that does not include the radio. The rough list includes the Micro Quad and gear to make it fly, two batteries, charger, and basic tools. Full list next week.

This quad will also include a camera for filming in flight. Once I get proficient in flying this Micro, I plan to get a 400mm+ quad and trying FPV with telemetry, etc.

So the pictures show week one. The Micro Quad frame . Purchased from Hobby King for $20.98 including freight. You will notice in the pics that the PCB (Printed Circuit Board) is up. This is used to distribute power to the eventual four out-runner brush-less motors. The instructions are in black and white and did not indicate which was up. I thought Turnigy would like to be up, so I put it together this way. Since these pics, I have watched some Micros on You tube and noticed that everyone put the PCB down (Duh!, not to mention the pics at Hobby King that I took completely no notice of!), so now my Micro Quad looks like the rest with the PCB down.

Next to the keyboard for better idea on size.

Next week I will show the controller board.  I am planning on making it into an X configuration and since the board comes as a + by default, I will be learning how to program the board through Linux, so I might have some helpful tips in coming posts.

Soooo, what have you built, only to discover that you did it upside down and how did you find out you did it wrong?

 Ĝis revido amikojn! (Until then friends!)