Wednesday, September 21, 2016

Cycloidal drive



http://lcamtuf.coredump.cx/cycloid/


This is a good way to slow a motor down to human cadence speed. Electric motors just don't work well unless they are moving very fast.



video


Monday, September 5, 2016

Clydesdale Cargo Fork

https://www.crustbikes.com/products/clydesdale-fork




The one interesting thing about this fork is the fact that the steering axis goes through part of the box, which should slightly lower the amount of swing flop.

However it could use about 1.5 inch more rake to eliminate wheel flop completely. The flop will probably not be noticeable unless you're climbing steep hills with a lot of weight. Slow hill climbing makes balancing with a swinging box more difficult.





Thursday, September 1, 2016

The Shock Doctrine






SHIT! This is a horrifying book, if you cannot deal with reality don't read it! Just continue to live in denial.

It tells the story of how vulture capitalist's lust for power is forcing us to submit to capitalist fascism by using shock treatments like, crashing the economy, eliminating the middle class, defunding our socialist institutions, like public schools and the social safety-net; welfare for the disabled and children, to force a reversion to dysfunctional submission, so they can plunder the worlds wealth.

These maniacal money mongers are like drug addicts of the stock market, destroying the economy and infrastructures of whole countries just to get their next fix!

I believe that they will be using the climate crisis as the final shock treatment.
Americans are now using more than 10 millions barrels of oil a day! That puts us all in the hands of the imperial lords, there is no way that electricity will replace that much energy density.

Fascism presented itself as an alternative to both international socialism and free market capitalism. While fascism opposed mainstream socialism, it sometimes regarded itself as a type of “nationalist” socialism.

My dictionary describes it as a form of radical authoritarian nationalism that uses belligerent raving, racism, and glorification of war, to shock the people of the world into submission.

The only way out of this is to start having civic skill seminars, so we can all learn to take control of our government, as they did in Europe.




video

This Changes Everything: Capitalism vs the Climate



Our problem is NOT the lack of appropriate technology.

Our real problem is the great desire to egnor 

the worlds problems and just be happy!



Persuasive speech has been practiced by great rhetoricians since the time of ancient Greece and Rome. Having the skills to successfully participate in constructive conversation and group discussion allows citizens to work together with other members of society to achieve common goals. These skills provide knowledge of how to constructively raise issues and then guide conversation in a productive direction.

Learning to differentiate between fact (statements which can be proven true), and opinion (statements that express judgments or ideas) enables us to critically evaluate what is said. It is also a way to prevent bias ravings, which is typically not based on facts. If there are not enough people learning this, the fascists will destroy our country and let the corporate worms destroy the rest of the world as well. Children, especially, should learn these skills so they can debate the professional liars and create a better world.



Friday, August 26, 2016

Cycle Paths verses Bike Lanes





Cycle lanes are to damn dangerous, the ducth cycle paths need to be copied in the USA but it is going to take many years of work.


video




What can Seattle learn from Dutch street design?



Wednesday, August 17, 2016

A Heavy Duty Trike





This is a trike my neighbour made some years ago. I don't know how much he would need to charge you, but you should ask him to put a proper sized gear reduction on it rather than using one of the over sized hub motors he sells.

You will need to ask for extra strong hydraulic disc brakes also. Some people just do not understand how dangerous 'cable-pull' brakes can be in the rain on a steep hill with 500lbs or more. I wouldn't trust them even in hot dry weather.

I also recommend 16” moped tires (20” O.D.). And mind that he does not use cheap hubs that parts are becoming scarce for, like any with loose ball-bearings. It's about time the bicycle industry joined the rest of the machine world in using sealed cartridges. 

He should to learn to build spoked trike wheels also. And mounting the rim pulley can be found here.






Wednesday, August 3, 2016

E-Bike frames



This is the best e-bike frame I have ever seen. Most frames are not made to hold all the batterys and electronics. This would be a very good job for a custom frame builder.

This would make a very strong cargo bike, but the motor still needs to be in the center because hub-motors are worthless for hauling hundreds of pounds up steep hills.

Geared hub motors are not available in more than a 5:1 reduction ratio. And direct drive hub-motors are set in such a high gear that you would need much more energy to climb any hill.







Wednesday, July 27, 2016

Thursday, July 14, 2016

A Cure for Capitalism







A lot of people I know have already given up on the future. I think it is because they don't know what to do and don't want to even think about doing more than what they're already doing to pay the rent, which includes paying for an energy gulping, smog spewing vehicle!

If you think it is impossible to
change our lifestyle and It doesn't matter because global environmental entropy is not man made you will never even try to change your excessive lifestyle. This is exactly what the social engineering of the plutocrats is trying to do.


But if we don't start building a social movement to create the ground work, like building worker directed community owned businesses, life will become very hard to survive.

Be warned that “Entrepreneurialism” is another word for “venture-capitalism”


A thriving co-operative economy through entrepreneurialism?

All that is needed is a credit union with a commitment to helping co-ops and employee-owned money oriented firms that are committed to sustainable development of communities? Like entrepreneurial organizations ready to help solve such problems as downsizing our life styles. If we wait for the “market forces” to to pay for the downsizing it will be too late to do anything.



As long as the bottom line is money, profit or affordability, everyone will loose the competition with the larger business. I also believe that quality is easier to achieve by a small group of people.

Marxism is not communism. Marxism has nothing to do with hierarchical government. The only way Marxism can possibly work is if all the people involved have a say in all the decisions. This is what a true democracy is.

We can't even try to confront the realities of what ails us until we can agree on what the realities 'are'.


This is why the overlords own the news media and create distraction by propagating fear of the kind of change that we need, by hate mongering !!!The money mongers must be controlled!

video

Marxism is an analysis of the systemic sycophantic behavior of capitalism.

Marxism 101: How Capitalism is Killing Itself with Dr. Richard Wolff

Tuesday, July 5, 2016

Solar Pedal-Electric Hybrids?





3D modeling:
https://sketchfab.com/models/593a406a222742c18b317bddbed53b4c

https://www.youtube.com/watch?v=X1_ep-XOLIM


























The reason solar cars are not on the road yet is that solar-voltaic cells convert only 30% of the energy received into electricity to move the wheels. So on a dark day, you're not going very far. Solar concentrators can be used over the voltaic cells. Solar panels may be helpful if your vehicle can be parked in the sun for several hours.

But in the real world you will need a fast charger and a pedal powered generator as well.

Direct drive hub-motors were developed for racing, not stop-n'-go city driving. But with this new “magnetic gear motor” things could change if it really works like they say. Or an AC three phase hub-motor that can be vector controlled.


http://commutercycling.blogspot.com/2016/06/utility-bike-project-for-pt.html


Carbon fiber is not the “strongest” material. It's the epoxy laid into the substrate that makes it strong. News-paper would be a good substitute; it is not much heavier than carbon fiber.

There is no reason that these micro cars would cost too much to build, if you can keep the weight and speed down to bicycle part's abilities. And if you consider how much hidden expense there is in using petroleum power.

But beware of the efficiency paradox:
If you make a machine that is more efficient it will serve to proliferate larger vehicles. Take the efficiency of the catalytic converter for an example: the American car industry created a demand for larger vehicles. So now the amount of fuel used, and subsequent pollution is even more than before. This is the best reason to keep the vehicle small enough to use the human powered pedals, is that pedal powered vehicles are more efficient than electric vehicles could possibly be.






Saturday, July 2, 2016

Electric Overdrive

Variable Field Brushless Motor

This is called field weakening. It is used to increase RPM above base speed (or base frequency) which is where the controller is unable to further increase voltage applied to the armature. In this example field weakening is accomplished by displacing the magnets (field) thereby decreasing the flux linking the armature (coils). Lowering flux in the coils reduces the generated voltage. That lowers generated voltage on the armature and demands higher RPM to balance with the applied voltage.

With all types of field weakening (FW), the reduced flux linking the armature will also reduce the torque per ampere. One can increase the vehicle speed using FW, but not the peak power from the motor. FW is commonly used in EVs, but rarely by displacement techniques.







video
https://www.youtube.com/watch?v=6_41btVawMc

video


Friday, June 24, 2016

Magnetic Gear Motors?

This is a new kind of machine, but not a new idea. It is “the most compact highest torque-thrust electric machine ever made”. It could solve the hill climbing problem of direct drive hub-motors by producing a much wider usable speed range; but no one seems to know if this is going to work like they say it will. Magnetic gearing?

Pros
It seems to me that this tech would be really well suited to a crank drive since you can achieve great torque output while still being efficient at low speeds!

Cons:

The bottom line is that their 1,000 watt PDD's with a 500 rpm output weigh 6 kilo's! (13.22 lbs) a bit much for most “weight weenys”, but not too bad for a large cargo bike!

video








http://www.magnomatics.com/pages/technology/low-ratio-magnetic-gears.htm

Sunday, June 19, 2016

Conspiracy or Opportunity?


Never Give Up!













I just do not understand how anyone can afford an effing car!
It can take 9 thousand dollars a year just to maintain a new car.

A barrel of oil contains about 11 years of manual labor.
And the average Amerikan uses the equivalent of 60 barrels a year. That is about 660 years of manual labor. Nothing will replace this decadent use of energy.


Extreme conservation might cut the need down to 80% but that is still 528 years of labor that each person needs. So you can forget about electric cars. You will be very luck if you can afford an electric cargo bike, or any bicycle at all.

The more preparation done in advance of the coming crises, the less of a crises it will be! The only reason it is a crises at all, is because not enough people are prepared to change their lifestyles! If you want a conspiracy to think about, look inside yourself!


The great awakening will start a movement like none other in all of mankind's existence before. Building an infrastructure that does not depend on a dirty fuel, that keeps us from taking care of our self's, will change the world's “class” structure also.

Solar energy has the largest potential to disrupt the fossil fuel industry's grip on our lives. But people are going to have to downsize their power usage severely!!


If we cannot learn to develop a sustainable paradigm, life can only get much harder. Deforestation and soil degradation will destroy our so called civilisation; both are caused by our insanely unnatural lifestyle. Humanity will be making some serious changes soon, you may as well make the best of it.


Only a crisis -actual or reprieved- produces real change. When that crisis occurs the actions we take depend on the ideas laying around. That is why we must develop alternatives to existing transportation now.

  Feed your dreams with realistic new solutions, and your fears will starve



PBS Global Warming The Signs and the ScienceJennifer Smith 

https://www.youtube.com/watch?v=xVQnPytgwQ0


Climate Denial:
video



















Tax the Rich?


video