Metal – Page 2 – AfriGadget

Modified bicycles in Kenya – 100% Afrigadget!

My good friend Jagi Gakunju who runs the Kenyan environmental cyclists club Uvumbuzi club told me about this project which immediately caught my attention. It’s a collaboration with Africans and a Dutch organization.

You can read all about Cycling Blue in Kisumu on their Cycling Blue blog

The Cycling Blue Kenya workshop is providing courses, micro credit for (modified) bicycles and creating of employment, it is aimed to reduce poverty. In the workshop bicycles will be modified to create bicycle carts (for instance bicycle ambulances) for sale. Who buys them? Garbage collectors, local entrepreneurs who want a (modified) bicycle to generate income such as the Cool coolbox, bicycles with extended carriers for transport of cabbages.

Here’s what they are cooking at the moment in Kisumu

The idea that bicycles in Africa get modified and adapted for local uses is definitely 100% afrigadget.

Check out the brilliant Cycling out of poverty website here for more photos and videos. For more information Luuk Eickmans

Cycling out of poverty
info@cyclingoutofpoverty.com
http://www.cyclingoutofpoverty.com
0031-(0)615895529
SNS-bank 90.61.46.356

If you and your family want a great weekend out on bikes, join the Uvumbuzi cycling club here

Drogba in Nairobi at juakali leather works

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’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.

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

leather goods small

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)

Jua kali dressed in Mitumba

Cat walk ready arc welder — Catwalk ready arc welder

This bizarre fabricated arc welding machine is the unique collaboration between jua kali and mitumba. Jua kali literally means hot sun in Kiswahili, and refers to the informal small traders who work outdoors in the sun fabricating mostly work metal and wood items, fixing cars and other household items. Unable to afford new tools they fabricate their own out of locally available materials. Mitumba refers to the second hand western clothing sold on the streets of many African cities. The arc welder uses stolen scrap and second hand wires that are coated for insulation using strips of cloth torn from unsellable mitumba clothes. This is then wound into the welding machine coils.

I’d gone to Limuru to get a welder for a job on a dairy where I met James Mutahi. He is a typical jua kali wrought iron artisan who operates on the sidewalk outside his street workshop using his own home made tools. I’ve seen jua kali home made arc welding machines before but usually they are housed in a protective box. To save money James dispensed with the casing revealing the guts of his arc welder.

James was making security grill for a window. There’s a huge demand for arc welding in Limuru especially for gates and window bars which are essential in the high risk security zones of Nairobi and other urban centers. Nairobi’s security is the result of the collaboration between mitumba and jua kali!

The picture speaks volumes about the Jua-Kali sector in Kenya– cost saving is paramount whilst safety is overlooked hence no housing box – look for welding goggles, fire extinguisher and other safety gear.

(This submission is from Dominic Wanjihia)

Modified farm implements in Kenya

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 Modified Plough

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.

barbed wire fencing gadget

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

Fuel saving Sufuria

Here’s another interesting idea from Dominic Wanjihia (see links to his other gadgets below) – the fuel efficient Sufuria. A sufuria is the aluminium pan that is used by virtually everyone in Kenya to make tea, ugali and for cooking vegetables. Like all pots that we use, energy is wasted around the sides of the pot. In Africa this is expensive as fuel be it gas, kerosene or charcoal is expensive. sufuria 1

This is what it looks like when assembled

This is what it is comprised of – two sufurias to make one efficient one. Basically a hole is cut out of the bigger sufuria – and the piece cut out becomes the lid so nothing is wasted. To wash the sufuria you just dismantle the pieces by just slipping it out. The heat that otherwise escapes around the edge of the pan, is trapped between the cooking pot and it’s sleeve.

Though it’s not in production, Dominic is using this sufuria at home and swears that it saves at least 50-75% energy on a kerosene stove (his estimate is based on how long it’ takes to boil water).

So if you put a fuel efficient sufuria on a Kinyanjui fuel efficient stove I wonder how much energy saving you could achieve?

Dominic Wanjihia has been previously on Afrigadget showcasing his flat parabolic mirror, container garden, wearable Solar Panel vest, Food dryer, and camel milk cooler.