Archive for the ‘Metal’ Category

Video of home made bicycle repair tools and gadgets in Nairobi

In Africa bicycle repair men can be found everywhere, from under a tree to in the local vegetable market, one of the best places to find African innovations.

At the Karen market I met the charismatic Mohammed Makokha who proudly showed me two of his home made gadgets that are critical for his business.

I’ve obviously been wasting my money in the bicycle stores.

Solution for Nairobi Blackouts

It’s no secret that Kenya’s rivers are running dry as a result of forest destruction and environmental degradation which has led to a season of blackouts in the capital city Nairobi.

Typical of the ingenious people of Nairobi one street vendor has cashed in on the crisis with this wonderful gadget which he markets as

“Perfect for Nairobi black out”

juakali lamp1

As you can see I could actually read by the light of this lamp which is made from a used tin can, some pieces of wire to make the connections

juakali lamp3

And the battery compartment is ingeniously crafted from a circle cut from a retired flip flop.

juakali lamp2

I love my juakali lamp and everyone that I know  in Nairobi needs one of these lamps. Everything about it is so true to the juakali spirit – hand crafted using colourful recycled tins, and designed for a real purpose with a handle so you can move it around from room to room or hang it up. The vendor tried to sell it to me for Ksh 350 but we settled on Ksh 200 (about $2.50) though I’m sure he would have gone cheaper but the traffic was moving and I had to go.

If you want one visit the Nyayo stadium roundabout.  They stood out amongst the chinese junk that vendors are selling you could practically kit out your house from the junk on sale there. Here’s a short list of what I saw during my 30 minute traffic hold up:

Pens, hats, footballs, blow up spiderman (who needs one of these?), peanuts wrapped in newspaper cones,

smelly car things, driveres licence holding cases, scarves, giant maps, Kenya flags, apples, kits (spiderman kites),

Nike shorts, cowboy hats, socks, oanges, backpacks, cheap watches, key chains knives, olympic medals (yes I wanted one of those!),

knee length shorts for guys who sag, hazard ttriangles, cables to cack your car, name tags for meetings, torches, window wipers (!),

car mats, pears, plumbs, tiny folding chairs for children (or Chinese people?), vehicle number plates, fire extinguishers, stickers,

Enormous framed pictures of furry cats and snow leopards (I can just see one of these this in my house), bananas and bandanas, plastic lunch boxes, pillows and cussions, a huge variety of stuffed toys,

posters with Jesus’ sayings, polo shirts, stearing wheel covers, spanners, screw drivers and of course my favourite – juakali lamps.

Nairobi never fails to impress. I love it. What else have you seen on sale in the Nairobi streets?

Cement-bag Bellows in Lamu

I was in Lamu in June and came upon a metal workshop tucked away behind the front row of buildings on the main path from Lamu Town to Shela. Inside were two blacksmiths, Adam Marabu and Abdul Ahmed, working diligently at creating a new anchor. What caught my eye though, was the bellows. They had taken old cement bags and hooked them up to metal pipes in the floor that fed air into the make-shift furnace.

Here’s a short video with some footage of them at work:


Lamu Cement-bag Bellows (AfriGadget) from WhiteAfrican on Vimeo.

One of my favorite stories on AfriGadget was the other unique bellows I found, this time in Nairobi, made out of an old bicycle. Both of these go examples go to show what can be done with very little. It’s about improvising what you have and overcoming a challenge.

Adam and Abdul make all types of items, but they told me that their main products are anchors, which range from small to large (2000-5000/= or $26-65) and, chisels and coconut shellers. They create a lot of the small metal pieces on the local dhows, and also make doors and window frames for the homes in the town. Really, they can make just about anything that you desire, like experienced metal workers anywhere in the world. What’s amazing is what they do it with.

Cement bag bellows and blacksmiths in Lamu Kenya

Cement bag bellows and blacksmiths in Lamu Kenya

The Kinshasa stove

After all these fascinating AfriGadgets from Maker Faire Africa, here’s another invention as seen by our friend Cedric Kalonji, a Congolese journalist in Kinshasa (D.R.C.):

Kinshasa_stove

For the lack of a cheap power supply in the City of Kinshasa, smart mechanics came up with this little stove that speeds up combustion by adding a little electric fan (hidden inside this tube that looks like being part of a flat spring). The fan itself is powered by (Chinese!) batteries and with the burning of charcoal, this quick stove obviously isn’t the greenest solution. But it works and does the job for those who will otherwise have no alternative.

Cedric also mentions on his blog post that it’s difficult to identify the inventor of this device. A perfect example of how low-cost technology easily gets adopted and/or modified (and why intellectual property rights are still a major issue in many places).

A Locally Fabricated Radio Station at MFA

Locally fabricated radio station: Ghana 101.7 FM

I’m a sucker for radios and antennas, and was just so excited to see the guys from Accra Polytechnic at Maker Faire Africa. Hayford Bempong, David Celestin and Michael Amankwanor are three members of the National Society of Black Engineers who have created a full radio with their own funds and brains.

They showed up at the event and setup the local Maker Faire Africa radio station, running at 101.7 FM. In conjunction with the speakers that they setup for the close proximity announcements, the radio was used to transmit up to a couple thousand meters away and spread the word about upcoming activities.

Basic electronics

David Celestin has been building power inverters and other electronic devices from scratch since he was a teenager. Below is one of his first power inverters, that still works, and which runs out of a little box. You can tell it is all fabricated from scraps and locally available materials.

Locally fabricated radio station: Ghana 101.7 FM

Here is their home-brew VHF SWR meter:

Locally fabricated radio station: Ghana 101.7 FM

Antennas

The team also creates their own antennas from scratch, including the “slim jim” below, “ground plane and a circular antenna.


Locally fabricated radio station: Ghana 101.7 FM

Agriculture and Metal Fabrication Meet in N. Ghana

Corn seed planter

Corn seed planter

This is a corn planter. It costs approximately $10 (15 Cedis) to make, and it significantly decreases the time that it would normally take to plant corn. This invention came about by taking a look a medical pill dispensing devices and transferring that knowledge to his communities needs.

Shamsudeen (“Sham”) Napara lives in the norther part of Ghana, which is a lot more rural and isolated than the southern part of the country where you find Accra, or the central part, where you find Kumasi. He has a metal fabrication shop where he builds tools, mostly for agricultural needs of those in the surrounding areas.

He was at Maker Faire Africa this weekend and I was completely amazed at both the ingenuity and the quality of his work.

Shea Nut Roaster

Maker Faire Africa: Ghana 2009

That’s not all that Sham has been up to though, in fact, he’s been busy with a couple other projects. Specifically, he’s been working with Amy Herman from the Univesity of Indiana to figure out how to enhance traditional processes familiar to those in Norther Ghana. This means he does a lot with Shea nuts and the processing of them. It is one of the few fields dominated by the women in the community, and a lucrative business, since the processing from raw to refined can net a good margin of profit.

Below is a shea nut roaster – a small version, since the large ones are the size of a table. It costs around $40 (60 Cedi), and it decreases the time and energy normally expended in the work of getting the nuts ready for processing.

Shea Nut Roaster

Shea Nut Roaster

Soap Cutter

Though he has many more inventions in his workshop in Northern Ghana, the last of the three items that he brought to Accra was a soap cutter. It’s a device that has a hinge on one end that opens and closes with piano wires and guitar screws to hold wire tight across the device. As it is closed, it slices the soap cleanly.

A soap cutter

Retrofit Turns a bicycle to an ‘Ambulance’

Zambikes is a project that retrofits bicycles by adding a trailer. This is especially useful in rural Zambia (and other parts of Africa) where there aren’t many cars to get the sick to hospital, much less an ambulance.

Watch how the ‘Zambulance’ retrofit is made…

The ‘ZamCart’
A multipurpose trailer

zamcart-2

Interestingly, the Zambike project sells and outfits bikes under the local brand name of ‘Amaka Sana’, the Bemba word for ‘very strong’ .

To learn more: Zambikes.org and follow @ACIRFA_Zambikes on twitter

via Timbuktu Chronicles

What Do You See?

I have a talk that I give when people ask me to speak on AfriGadget at conferences that is called, “What do you see?”. It’s a visual and interactive quiz where I take the audience through different images of AfriGadget and ask them what they’re looking at. It’s a lot of fun, and it proves to everyone why it’s so hard for people in the West to come up with contextually relevant life hacks in Africa.

Below are some images from an old family friend who has spent his life working in rural Southern Sudan and Kenya. Under each image you’ll see why it’s interesting. By the way, I too missed the relevance of the flip flops at first glance…


Old flip flops made into door hinges

Making use of available resources for a hinge. I really like the way that Ben has used these old slippers and shoe for the hinge of his small kiosk/shop at Butere.


Home made African chair

This old chair at Mahanga in Western Province shows the ingenuity of the local carpenters in making use of available resources, with the carton and stuffing from sisal and wood shavings.


Bottles and plants in Kenya

Using available containers in a nursery for medicinal plants in Asembo area of Western Kenya.


Fanta bottle pipe

Making use of a Fanta bottle to channel water from the rainwater downpipe to a storage container in Nairobi.

A special thanks to Roger Sharland of REAP East Africa for sending in the pictures.

Gears into Hammers

old gears turned into hammers in Uganda

More pictures from TMS Ruge of Project Diaspora, this time of a crude hammer used to crush stones in a quarry outside Kampala, Uganda. It’s made out of an old engine gear.

old gears turned into hammers in Uganda

Togolese Bottle Opener Simplicity

olpc windows xo
Togolese inebriation innovation

I love African beer. I really do. Even when bad Nigerian beer knocks me down for a week, I am always back for more.

Maybe it’s the efficiency of drinking from 1/2 liter bottles or the romance of relaxing beer-in-hand while watching Simba sex. Either way, a cold Club, Tusker, or White Cap is the only way to end a day.

That’s why I’ve always noticed how beers are opened in Africa. My preference is for the minimalist method of using one bottle to open another, a trick I use to constant amazement in the lower 48.

However, most African restaurants and bars employ boring commercial bottle openers, plain and unassuming in form and function. You have to really be on the lookout to find creative beer release mechanisms – and recently I was rewarded for my vigilance.

Having a cold beer after Togo’s National Run to the Border Day sprint to the Ghanaian border, I noticed that my server was using a non-standard bottle opener.

A first in my observance, she employed two screws in a wooden peg to pop the bottle cap on my Guinness. What simplicity, ingenuity, practicality!

I was in awe until I had a thought: What if she could use only one screw?

African bottle opener

[See more images like this on the AfriGadget Flickr group.]

Wayan Vota is part of Inveneo, a non-profit social enterprise whose mission is to get the tools of ICT into the hands of organizations and people who need them most: those in remote and rural communities in the developing world.