AfriGadget

Miniature versions of vehicles are as popular with kids in Cameroon as anywhere else. Adult craftsmen across the continent use materials such as wire, beads and recycled cans to create toy bicycles, trucks and airplanes—many of which transcend the level of children’s toys and are nothing short of art objects. Indeed, some of these creations are produced for corporate clients and international buyers.

No less ingenious and fascinating are toys created by and for kids themselves, usually from the simplest of materials and tools. This includes items like toy tractors (Kenya) and SUVs (Uganda) made from recycled plastic bottles.

In Cameroon, one such popular toy crafted by kids is a ‘remote controlled’ car or ATV. These are often built from discarded flip-flops (slippers), sardine tins, bamboo or raffia palm, electrical conduit (pipe), rubber and bits of string. A variation on this theme that incorporates a split bamboo steering column and a full-sized wire steering wheel was blogged by Steve in the northwest of the country.

It’s not difficult to spot toy cars like this being piloted by kids in Cameroon—the trick is usually being able to catch up with them to photograph one. A big advantage of this design is its ability to handle rough terrain when being driven at speed. The bamboo frame, chunky tires and rubber fasteners suck up bumps in the road like a 4WD Toyota. The proud builder of this R/C all-terrain vehicle paused long enough to demonstrate his creation for me.

Our dear friend Bill, who already provided us with this great story on Cameroonian Bamboo Magic, recently also posted another story on the metal workers – les forgerons – in Cameroon on his private blog:

Tweezers (source)

On the outskirts of Maroua, the capital of the Extreme North of Cameroon, is a place quite unlike any other in the country. Here a community of les forgerons—blacksmiths, or metalworkers—practice their craft in the relative cool of a tree grove. Several dozen men with specialized skills are gathered here for a single purpose: to transform piles of scrap iron into finely finished tools, stoves, replacement parts and other useful implements for sale to the local population. Young apprentices learn the craft while operating bellows or shaping wood for tool handles. The production here is performed entirely by hand and on a scale which must be seen to be fully appreciated. ….

Head on over to his blog for the full post: The Extraordinary Makers of Maroua

Piki piki means motorbike in Kiswahili

This gadget was created to solve a real problem with biogas – getting the dung to the system quickly and efficiently. Motorbikes are the taxi’s of Africa so why not? Before I tell you about the above gadget I just want to remind you about the problems we have been having to solve to get the biogas to work at home.

Installing biogas at home has a real experience in afrigadget – we have figured out by trial and error how to get the gas under pressure –

At first we tried using water pressure, but when we stepped back and looked at it we realized that it really wasn’t simple or appropriate for bush applications ..

In fact, all we needed to do was to put pressure on the bags.

The pressure wasn’t enough to run the stove until we modified the stove jets by enlarging them slightly.

Next we had to figure out how to get the dung to my digester – you see I don’t own cows but my neighbors who live a few kilometers away do and are selling it at a very nice rate of Ksh 50 (70 US cents) for two large buckets . The owners are happy to see the dung as it  accumulates in the nighttime stockades and attracts annoying flies that carry diseases if left on the land.

The problem I face is common to many folks around here, we rent houses  but we don’t have livestock. But there are huge cattle farms around us. So Dominic came up with a solution that creates jobs and moves poop quickly and efficiently.

So we went to the local juakali welder on the roadside to create a dungmobile ..a trailer designed specially for cow dung!

We tested it with a human load to ensure it is balanced … each bucket weighs about 50 kg.

And the first delivery arrived without a problem!   Big Thanks to Dominic Wanjihia who seems to always have a simple solution to any problem.

I know you are wondering, if it’s that easy, then why doesn’t everyone use biogas?

Now that I’ve got biogas running my kitchen I wonder why so few people have done so in Kenya. There are countless articles, publications, websites and people who will tell you that biogas is the most economical and environmentally sustainable way to produce energy. In fact, the benefits of Biogas have been known for tens of years, and hundreds of systems have been built in Kenya. But it hasn’t really taken off –  few of the installed systems are actually working and the uptake of biogas systems at a domestic level has been slower than slow – it’s virtually non-existent.  A review of biogas in Kenya reports that technical breakdowns has discouraged uptake but the main limiting factor is cost.

Here’s a simple comparison of costs – from continuing using charcoal/fuelwood or Kerosene and LPG to using various biogas options.

For a simpleton like me these figures are immediately revealing – it takes 2 years to pay off a flexibag digester after which domestic fuel is free for at least the next 10 – 13 years. For the underground systems you have got to be  hugely rich, or suffering from environmental guilt to make the decision to switch to biogas – from an economic perspective it will take 10 to 20 years to pay back. You could grow your own trees and make your own charcoal  in that time frame….

Why is it so expensive for the constructed biogas systems? Because most of the biogas systems  in use are constructed systems requiring engineering and masonry, they are very expensive, take weeks to install, require experts, and intensive follow up. If they go wrong it’s a major engineering task to fix it. This is why we are promoting the flexible bag option for domestic and small industry use.

Congratulations to Skylink Award winning Kenyan  biogas innovators

We would ;like to congratulate Skylink Innovations who have just won a the Ashden 2010 Award for their biogas installations in Kenya.

Skylink recieve the Ashden Award from Sir Richard Attenborough

I thought skylink was an airline… Biogas operated planes???

Human waste digester under construction in Meru Prison

Their industrial scale system costs Ksh 1.6 million (US$ 19,753). Such installations may need to be financed by the Government institutions where they clearly make enormous economic and environmental sense for schools, prisons and other large institutions.

For small scale house hold units, we need solutions that will compete against the cost of installing LPG or using charcoal, firewood or kerosene stoves. When we talked to local Maasai near Nairobi they found the flexi bag systems appealing because they could be purchased with the sale of just 2 or 3 cows, can be rolled up and moved when they migrate, and it saves the women the work of searching for firewood, it’s hygenic because water can be heated for bathing children, while it also removes dangerous piles of rotting cow dung near the homesteads which are breeding sites for biting and disease carrying flies which affect livestock and people.

I got this photograph from someone who had his teeth repaired in Gikomba – the center of Kenya’s Juakali innovation, and another one of Kenya’s slums . The home made gadget looks pretty terrifying but check out the results!

Looks barbaric but check out the results!

Made from brass and modelled on something much more professional, this manual tooth mould (I’m sure there’s a technical name for this gadget) is cheap and brings smiles back to faces.

There was a major announcement today from Nokia about the release of cheap phones for the emerging markets, featuring dual sims and the ever useful LED flashlight. What is even more interesting is that with the launch of the phones, a bicycle charger kit. According to CNET Asia, the kit will be available by year’s end.

Rounding up the announcements today is the Bicycle Charger Kit, which comprises a charger, dynamo and phone holder. When docked to the latter with a 2mm charger jack, the electrical generator will produce energy to juice up the handset. According to Nokia, the dynamo starts charging when the speed of the bicycle reaches 6kmh and stops when it hits 50kmh. It matches the efficiency of a normal charger when the bike is traveling at 12kmh.

The bicycle charger kit will be useful to many people in Kenya and other emerging markets, its only a matter of time before it is repurposed to charge other devices like small radios. All in all the phones seem AfriGadgetty, what with their dual sims; perfect for markets where people have more than one carrier – thinking of Nigeria here, where its not uncommon to see someone with multiple phones because of varying network coverage/dependability + LED flashlights, it is clear that Nokia is making products that have utility for millions of people around Africa. Personally I can’t wait to try out the phones and mobile kits as soon as I can get my hands on them. Come to think of it, this is hardware localization, something that could go hand in hand with the software localization we are clamoring for in the African market.

For modded bicycle posts from the AfriGadget archive, click here.

Many thanks to my friend Cyrus for the heads up, I think he has just inspired me to blog again.

[Note: Somaliland is different than Somalia.]

These are the kinds of stories and projects that you just can’t make up. We’ve written about Nigerian Mubarak Abdullahi’s home made helicopter a couple years ago from old car parts. It appears that 3 Somaliland men built a helicopter too, using scrap metal and an old van engine.

Much like the Nigerian one, there is no video footage of this one flying. It’s not easy to build a machine that looks and acts like a helicopter, but it’s a lot easier than making one that flies. It does take a lot of drive, thinking and skill to build even these models, but I won’t be truly impressed until I see a video of one taking off and landing.

“The trio, Mohamed Abdi Barkadle, Saed Abdi Jide and Abdi Farah Lidan said the purpose of their helicopter was to be used to fight fire in the city and surrounding area. They receive no major sponsors, financial nor material support from any one including the government, it is a three men vision and ingenuity.”

Now, the question is… Could we get the three (and the helicopter) to Maker Faire Africa in Nairobi this August?

Peasant farmers are not the first group that come to mind when thinking about innovation but Mr. Frederick Msiska of Nchenachena in the Henga Valley of Northern Malawi is an innovator and in more than just one way. Mr. Msiska, who only attended school until the 5th grade, is a peasant farmer who also happens to be an inveterate inventor and a tinkerer. Among his many creations, he has designed and built a biogas converter for his toilet that he uses to produce electricity. He has also built a cell phone charger of his own design, a fan for his home, both of which use the electricity that he produces as well as a chemical sprayer for use on his farm.

Mr. Frederick Msiska

Of his inventions and what it took to make it so, he says “I looked around and I found that certain things were missing in my life so I studied very closely things that the government supplies. I made them myself through trial and error. I just kept trying, trying, and trying until they eventually worked.”

   

On the wall of the office of Frederick Msiska: a to-do list of things he plans to do -

'Zinchito Mu 2008' (Work in 2008)
- Kuzenga office (Build office)
- Kupanga Luso ( Make things with my skills)
- Kupanga Sipuleya (Make a sprayer)
- Kupanga fani (Make a fan)
- Kupanga magetsi (Make electricity)
- Bio-gas light

Frederick is also a “lead farmer” – a designation local government gives to thought leaders in agriculture in an area who give advice and direction on best farming practice and techniques. He is also known around his area as the “Doctor of crops” due to his farming expertise and adoption of every sustainable farming techniques he comes across.

    

Frederick on his farm / at his macademia tree nursery and with his self-made chemical sprayer

Mzamose Gondwe, who runs the blog African Science Heroes spoke to Mr Msisaki and was distraught to learn that he has taken apart his biogas toilet due to (unwarranted) fears about imprisionment after word came out to him about the travails of another rural inventor, Gabriel Kondesi. Gabriel who has invented a radio station using an old cassette player, Nokia cellphone, some electrical components and antennae. What he did not know was that the root reason behind this particular arrest was the running of a radio station without appropriate licensing, an ovresite that the licensing body, the Malawi Communication Regulatory Authority (MACRA) later fixed when the recognized Gabriel’s ingenuity and awarded him a license.

Mr. Msisaki is the picture of humility: when asked about his inventions and achievements, he presents the view that “… farmers do not contribute to national development, it is only those who are educated who contribute to development.” He story and achievements however are truly the epitome of what we profile here at AfriGadget with the focus that we have on the appropriate application of ingenious African technology in every day problem solving.

via African Science Heroes: Communicating science, the African way and Self Help Africa.

Deep in Kariokor, a slum and a hub of Nairobi’s juakali leather industry, you can’t miss spotting Drogba hard at work at his home made leather press.

Drogba at work

Drogba’s leather press is an assembly of diverse components.

The fly wheels are made up of two used conveyor pulleys full of concrete. These are joined together by two used second hand vehicle half shafts.

The half shafts are connected to an old bench vice screw (hope you are singing along here)

The screw is connected to a press foot

(all together now) “Oh hear the world of the lord” (tune of the kids song Dry Bones)

The print plates are placed on the base of the press frame.

God is able - so is Drogba!

When Drogba spins the fly wheels, he sandwiches the leather between the press plate and press foot producing perfect permanent imprints in the leather

This method is used for most of Kenya’s printed leather products, a huge industry that includes Maasai beaded belts, menu covers, wallets, passport holders, belts, key holders, coasters, handbags, purses, and many fashion accessories and leather souvenir products.

Drogba is 18 years old and works a good 12 hours per day on a casual wage. He has just completed high school and is looking for a college placement.  As you can imagine, he’s a huge fan of his soccer celebrity lookalike and namesake.

(special thanks to Dominic Wanjihia for this contribution)

In Baringo one farmer has come up with two rather interesting innovations.

Murray Roberts is in the business of planting restoring grasslands which involves planting grass seeds in severely degraded landscapes.

The primary purpose of ploughing is to turn over the upper layer of the soil, bringing fresh nutrients to the surface, while burying weeds and the remains of previous crops, allowing them to break down. It also aerates the soil, and allows it to hold moisture better.

A traditional plough comprises a series of blades all facing the same direction.

Murray Roberts has modified his plough so that it has two blades facing each other. These create a hill and furrow effect which is perfect for grass seeding to improve the trapping rainwater in this semi arid part of Kenya. Normally the rainwater hits the surface and sheets off the ground carrying away the valuable top soil and seeds!

But that’s not all. Ever tried to make a fence using barbed wire – you know how tangled it can get? Well not if you use one of Murray Roberts fencing gizmo, it’s basically a tool onto which you thread the barbed wire so that when you go out into the field to fence a plot, you can release the wire in an untangled manner and under tension.  Simple and obvious and you don’t need a wire tightening tool.

That’s William Kimosop and Princeton University Undergraduates checking it out – don’t ask  me what that dog is up to!

I was driving down a street in Nairobi today and did a double-take when I saw a man standing by a motorized bicycle. One u-turn (of questionable legality) later and I was chatting with Samuel Magethe, a local carpenter who does house calls. Apparently, he usually carries his toolbox and wood supplies on the back of the bicycle, though he didn’t have them with him today. He has used the bike for 2 years and says that it’s a great help to him as he gets older and has problems with the hills.

Motorized Bicycles in Kenya from WhiteAfrican on Vimeo.

I talked with Samuel for a while and found out that he had bought the engine and bicycle in downtown Nairobi. Since I had to go downtown anyway, I decide to hunt out the seller and see if I could get the background story on where the motors come from and the specs on them.

It turns out that the engines, and bicycles, are imported from the ADTEC Corporation in Japan. (As an aside, it appears that Adtec motorcycles are part of the big influx of Asian motorcycles being used as taxis in E. Africa.) It’s a 48cc 2-stroke engine that has a top speed of 40Kph (25mph). The tank can hold 2 litres of fuel and they claim that it gets 70 kilometres per litre.

You can buy the bicycle plus engine for 15,000 Ksh ($200) or just the motor for 10,000 Ksh ($135).

The company that sells them in Kenya, Adventure Technology Company Ltd, has their main office in downtown Nairobi, where they had their last two bikes that weren’t sold. In 2009 they imported 500 bicycles and sold them in their 13 branches across the country. The branch manager, Julius Lumumba, tells me it’s a good business, and they sell very quickly – especially up country in places like Kakamega, Bunguma and Kisumu.

[Note: I forgot my cameras today, so I just had my iPhone to do the pictures/video with, thus the lower-res, sorry.]