04 November, 2014

Avoiding punctures on the bike: Fundax Leather Bands


I was looking at how to protect my electric bike from punctures (occasionally I like to go mountain, and the street itself usually glass and other sharp items) because the wheel with engine is more difficult to repair, and it is now easier for me doing 100 kms routes with the extra help of the engine.

First, have a good tire is essential. I have put a mixed Bontrager , and being "eco" low rolling resistance, not "dig" up hill as usual plug-covered tires, and I can also use them on something slippery surfaces like grass or dirt with no problem. Your heel height gives me an extra puncture protection, but I fear that when wearing a little, small skewers I've usually had to repair (as I already consider myself an expert in that matter), begin to appear.

To avoid this, I researched and even a friend recommended me to inflate with a foam to prevent punctures, which it does is fill the hole, auto-driying with the air, but did not convince me at all, because they add weight to go wiping every few months (every time we need to fill them), is ineffective in addition to holes larger than 3 mm.

After looking at the options on the internet regarding protective bands that stand between the camera and the cover in the end I opted for the leather Fundax like Javier, who came to the same conclusions on his blog , as are the that seem to go better, without adding too much weight, very long-lived and don't damage the tire as with the plastic.


01 November, 2014

Installing Windows 7 on an Acer Aspire 1690 or 1692LMi


Windows 7 is currently the best operating system of Microsoft, for speed, security and compatibility, being as fast as XP on computers with enough memory (2GB of RAM recommended), on computers with little RAM is highly recommended to install version Starter, occupies the least. 

But when installed on older computers like ACER Aspire laptop, you have to look for lifebecause some drivers are not directly available on the website of the computer manufacturer. 
The first thing to do is check if some drivers, but did not come with the Windows 7 DVD, may be in line for example in the Aspire 1692LMi both IrDA infrared port sound as we have them available if we give automatic driver search. 

Depending on the computer, we have to find out if there are compatible drivers available, usuallythose for Windows Vista will run smoothly on Windows 7. 

Installing drivers on Aspire 1692LMi step by step: 
  1. For Wifi unzip and run this file in administrator mode, and although we give error to restart will automatically recognize the wireless card built in. If it still will not install, installing all Windows updates will recognize.
  2. For the built-in card reader, it is worth us with Controller ATI website, here you have it available .
  3. For sound and infrared, as we discussed, we give automatic search online, or install all updates are installed automatically.
  4. To install the video card Ati Radeon X700 Mobitily, you must download and unzip this file several ancient Mobility Controllers, the "9-11_legacy_7_vista_32-64_dd_ccc_mobility"eg C: /, and then proceed to install the .inf folder C: \ ATI \ Support \ 9-11_legacy_vista32-64_dd_ccc \ Packages \ Drivers \ Display \ LH_INF manually:

How to install a driver manually on Windows 7

Within the Device Manager, right-click and "Update Driver"

31 October, 2014

How to Refill toner cartridges from laser printer


Refill toner cartridges from our laser printer can save over 80% on printing costs while contributing to reducing waste that is difficult to recycle (different plastics, aluminum, metal parts of the drum, toner, in a piece).
When toner is spent, the cartridge is empty, but cartridge parts (roller, gears, etc.), usually endure two or more times without loss of quality copies.
Further results will be the same as the original cartridge (if used toner compatible) while the plastic parts roller that transfers the ink does not wear.
TIP: Just make more than 50 copies per year as we get more cost effective to purchase a cheap color laser printer (between 100 and 200 €) with which we will save a lot of money on the cost per copy over the years compared to those of ink.
In this case, the HP Laserjet CM1312 toner brings a Factory endure only 500 copies called "test toner" and when they run are in perfect condition to be refilled, and put up the new ones enduring 1500 (covering the middle usual 5% of each page). 
The good thing is that it brings a CM1312 meters in cartridges that can be canceled without change in the configuration of the printer: 
Enter the menu, moving the arrows to the "Replacing consumable" option and select "ignore exhausted."

Spreading the heat from a smokestack with very little money

Low heat with heat removal by natural draft failing to place the drywall

In this post I will discuss the "invention" that has made ​​Jose, the previous entry that heats the house with a Hergóm stove to get more heat from a low fire.
Recently we were invited kindly to spend the evening at home, and we saw how he had prepared the Hergóm and how well it worked, and incidentally told me another idea that seduced me for its effectiveness, which he has kindly left me to share with you.
I had read somewhere on the possibility of putting tubes to extract the heat from the flames to the local, but had never seen implemented as well as it did Jose.

It is an ingenious system that removes most of the heat from the flames by the operation of two principles; that the hot air rises, and atmospheric pressure.
Let me explain:

  • On one side is sealed local (almost), because it has more air inlets to the pipe through the home (or stack), so that the flames, while climbing because warm air is lighter, make natural draft, "sucking" air of the room, which has no other site you get the pipe through fire. On the one hand ensures that no harmful cold air currents, and other system efficiency is maximized because we do not need fans. And there is no danger for local air constantly is renewed by the preheated air stream exiting the open tube you see in the first picture. It is also self-regulating, more fire, more shooting, more heat to the room.
  • On the other hand, the cold air entering the street at the bottom of the fire itself heat collecting tubes amounts to the upper tubes of the circuit, helping to maximize the siphon effect.

How to buy bulbs: Look at lumens and light-degrees

HOW TO BUY LIGHT BULBS: LEARNING ABOUT LUMENS IS A BRIGHT IDEA

The lamps are improving efficiency; Watts measure them no longer works. The new bulbs - such as halogen incandescent, compact fluorescent light bulbs (CFL for its acronym in English) and light emitting diodes (LED for its acronym in English) - have a longer life and use less energy than incandescent bulbs traditional, which means savings in electricity bills. In fact, from 2012, daily use bulbs will have to meet the new standards of the Department of Energy with respect to the amount of energy they consume. For the next two years, will eliminate any bulb that does not meet these standards .
Along with this change using more efficient light bulbs, a new way to select them when you go shopping.

What are Lumens?

For years, people have chosen to base bulbs in watts, learning by experience how much light bulb gives a typical 40 or 60 watts. But the wattage of a bulb consumes only tells you how much energy - does not tell you how much shine.
Because the new bulbs are designed to consume less power, wattage is not as reliable in measuring the brightness of a light bulb - you have to use the lumens.
Lumen = Brightness
W = energy
Lumens measure brightness, ie the total amount of light emitted. For example, a standard 60 watt incandescent bulb produces 800 lumens. Instead, a CFL causes lumens 800 and consumes less than 15 watts. 

30 October, 2014

How to weld aluminum and other nonferrous alloys easily with Durafix


Thank Durafix a zinc-based alloy and other materials, have managed to repair a bike aluminum BH we had forgotten in the attic for having a broken rear frame. 



Welding aluminum is very complicated, or at least it was until I tried to use Durafix; No welding aluminum and I can stand. The welds are stronger than aluminum itself, and instead the material melts before I do the base (aluminum) material, so that we can "work it" with some tool. 
Moreover it serves to weld many types of materials, such as brass, bronze, copper, non-ferrous etc. 

Your smartphone autorestarts, you lose data? Possible problem, internal memory damaged on your smartphone


I had a Samsung Galaxy SCL i9003 began to malfunction; I just restarted, lost contacts, program settings, etc. 
After searching the web, it turned out that the internal FLASH memory chip, using, being of low quality, began to fail. 
Such memories theoretically not lose their data for up to 10 years, but if damaged by use (allow a limited number of cycles, about 100,000 or more), you may not withhold good data and "forget" . It can happen to any phone that uses them, and sooner or later any "smartphone", tablet, ebook, etc with internal flash now have this problem.
To check it, it is best to use this freeware program h2testw . We connect the phone in "mass storage" mode and run mode continuous writing and then read until an error appears, checking the box for "endless verify" (to select target drive select):



How to extend the battery life of your laptop without losing power: Reduce the processor voltage


Earlier we saw how to extend the battery life (and the computer to overheat less, also extending its life) tweaking the settings of the graphics card . This time we will do the same, but without any danger to your computer, without slowing it , lowering processor voltage. 

Did you know that it will continue working as before and safely? Indeed. And I'll explain why. 

Assemblers buy computer components (including the processor, AMD, Intel, or whatever) and then merge them into assembly. However, when making the processors are produced in batches of thousands of units, and each comes with its own characteristics (may have tiny defects, with a different quality, which may slightly affect the performance of each) a particular "batch" sample is tested, and labeled with the voltage required to operate safely and without fail, usually with a large margin of error. 

We will find out what the lowest safe voltage possible for each processor operating frequency that our laptop mounts, and apply it using a program (RM-Clock for intel or AMD K10Stat for K10), so our team will to do the same job, but with less energy, less warming, lengthening its life, and thus making the battery last longer. It sounds complicated, but you will see that it is not. 

This applies especially to older processors; for current (Phenom, I3 / I5 / I7) can not find them programs that can configure or that you have to make the change through the BIOS (I think that Intel now are marked with fixed voltage factory without the possibility of change "on the fly").

29 October, 2014

DIY: Turn your bike into e-bike for yourself - Step 3/5: Preparing the box to house batteries and controller

Table prepared to house the batteries that drive us
If you do not want complications, you can always put a rear rack on the bike, and then put the battery. But I have opted to place them on the table, which, though it takes more work,has a number of advantages: 
  1. The weight will be more evenly distributed, providing braking and acceleration. On the rear wheel and have about 6 kg. with the engine, if you also put the battery, it will be more difficult to transport and easier we can steal the most expensive part of the electric bike.
  2. In the picture we can put the battery in the format we want, taking advantage of an otherwise wasted space, and allows us to better cool the driver if you use one side of sheet aluminum. It will be better secured and more stylish bike.
  3. Good space and fixing. The table allows us to fix very well, so they do not "jump" with every bump. Furthermore, by using standard Li-ion batteries with 1C charge / discharge, we must use more units per cell to get enough power in case you want to overcome slopes of more than 10% without much help from us; 18650 battery using 9 x 10 cells obtain a 36V and 20Ah capacity, enough to make 50 kms without problems (helping us). A battery of this size would not be very aesthetic behind and go unnoticed.
  4. And aesthetically, "cool" a lot! We can put stickers, drawings, etc.
As Jack, whose tutorials I learned a lot, he used wood to prepare : 


I preferred the aluminum for enduring great weather, easy to assemble, lightweight, flexible and durable. 
My bike Jumper BH, as I mentioned in previous posts, has a peculiar box aluminum alloy, which makes it more resistant to the jumps with its diamond shape. After figuring out the various settings, I bought a 45x23mm angles and 2 meters long, riveted on what was to be the base of support of the battery cells, placed diagonally. 
IMPORTANT: The width of the frame must be in accordance with the width of the batteries that we stay; in my case 6 cm. approx.
As batteries go diagonally, must form an angle at the bottom, where the profile will not: 

Holding one side of the base with a sergeant, drill and drilled, and then riveted

Changing the display cable on a laptop

Acer Aspire 5930G with the display cable fixed
Earlier I commented that in several ACER laptops the picture failed by the cable, and the solution to tighten the connection area does not give permanent results, so sick of the problem, ordered a new cable from Ebay. 15 days later it came to me:


In this post we will see the steps to take to change the cable screen (make that is the problem before changing; it is not the most common).
This guide will give us the necessary guidelines to disarm any screen, since all are constructed similarly.