Maya Pedal y las Bici Máquinas!


Uploaded by comuntierra on 21.08.2011

Transcript:
Común Tierra pedaling… With Maya Pedal!
Maya Pedal – Association for the Development of Bike-Machines - Founded in 1997
Maya Pedal was born in the year 1998 from what was the armed conflict.
When the families and the women were left to themselves
there was a need for leaders from each community to get involved,
to look for a way to improve the lives of our people.
And through that, we saw the need for a project of integral development for the family.
And then came this idea, if the bicycle is a mode of transportation,
propelled by a person,
why not adapt other manual ‘machines’ to be propelled by a bicycle?
And that’s how the idea of Bike Machines was born.
The Bike Blender
Here we have a piece of recycled wood, this can be whatever piece of wood.
The iron we have here is also recycled.
The purpose is to form a table to hold this wood, the base, and the drive shaft.
The drive shaft, we can see here, is a bicycle hub. It can be the front or back hub.
What we do is recycle old tires from cars or trucks,
to get this gum, which forms the propellant of the bike blender.
This part is not made in the lathe, it’s actually this piece from the axis, look…
What we do is square it off, with a file, form these 4 sides
to adapt it to the base of the blender to power the propulsion.
To power the propulsion, we also need to use a bike tire.
The rim can be size 27, 28, it needs to be big to generate more revolutions…
that’s the function of the tire.
The frame we use also is really important, you can use a 26, 27, or 28 size frame.
Just these three types of frames.
These are parts of the forks that we use, recycled from the same bikes,
it doesn’t matter if they are broken.
We use this as the base, along with this angle, that forms the base of the bike.
On this side , as you can see, what we’ve done is invert the gearbox
because normally if you sit here, you would face this way
But with this, we invert it to be able to pedal in the other direction.
So with this, we see we can sit facing this way, pedaling,
And then you can begin to work the bike-blender.
The Bike-Grinder
The way we build this machine is multifunctional
You can attach a grinder for seeds, coffee, cocoa, chili, tomato, beans, corn, etc…
This one is a manual corn degrainer
This degrainer is built with a crank, where the person has to spin it with their hand.
So what we do is take off the crank, adapt it to an axis, this type of axis here,
we cut a piece to be able to adapt it here, in this part, and we insert a pin.
Look, I can move this piece, it’s cut here and it has the pin,
which assures that here it won’t break.
So when the time comes to de-grain, you just place the corn here and start pedaling,
And it starts working, the corn spins around, and the corn grains come loose down below.
This is part of a normal bike frame.
As you can see, this is inverted, we have 1, 2, 3 angles,
we invert the bike to make the motion in a forward direction.
This angular piece, we usually have to buy this, to construct a base for the machine.
This is a recycled handlebar… this down here is also a bike part…
we have the gearbox, the derailleur, the chain, this piece here…
And up here some recycled wood to make the seat.
I’m going to show you something… depending on the person, you can adjust
I’m going to take it off so you can see…
so what we do is place it down like this, place it here
and we can bring it back if there is a large person, or forward if there is a small person.
Another thing we’ve done, for the dry corn,
to make the concentration of dry corn for animals,
you need more force, so we work with centrifugal force.
We call this 'volante,' but in reality it’s a bike tire number 20
and with this weight it generates more force.
I’m going to show you, for example, if I press like this, no
but if I use more force, the same momentum of the centrifugal force
maintains the movement...
This makes the work easier, and we don’t have to use so much energy.
Another benefit this has is the system of gears, just like a normal bike, there it is…
If it’s too hard, we can make it a little easier.
If the product we are going to use is softer, we change to the other gear to
increase the speed.
So it's complete, just like a bike. You can put 6 or 7 gears
and then multiplied by 2, we’re talking about 10-15 different speeds.
The Bike Washing Machine
We’re looking at a washing machine, made up of 2 recycled barrels
one on the inside, one on the outside.
That’s what makes this work as a bike-washing machine.
It has little wheels inside, to allow it to spin and move around the water.
We also used recycled pieces of plastic to build blades inside.
The blades help the clothes to keep moving to get clean faster.
This entire structure is built from recycled materials, not from new products…
All the pieces we can recycle, we reuse.
The bike frame, the chain, the gearbox, another gearbox here to connect here
with the gears
This is a derailleur that adjusts the tension of the chain.
The thing is, if you can’t tighten here, the chain could easily loosen and fall…
that’s why you need this derailleur.
You also need this weight, for the centrifugal force,
to lessen the energy needed
These are the blades, and here you see the barrel,
and these little rollers, we recycle them from car tires,
these rollers hold the internal barrel in place.
The Bike Water Pump
We call this a Rosario pump
This pump pulls water from 30 meters down. All of these parts are recycled…
this is a car tire, around a bike tire, and everything else comes from a bike also.
For more information and how-to manuals, visit www.mayapedal.org
Let’s make Planet Earth our church, and taking care of it, our religion.