07 November, 2014

Building an optimal and secure wood-stove: Getting Started

Photo: Lotus Wood stove
In this post I continue my reflexion of the design of a range of "open source" in which all (and indeed some have already sent me mail their designs and tips) can participate and improve. 
When designing a wood burning stove in the optimal fuel consumption and comfortable, we have several options, depending on how we want to extract the heat. 
To do this we use the latest techniques and materials; First I'll build a simple stove that anyone can do only with refractory bricks, refractory cement and a fan (optional for better performance), to then make a more complex and automated fire control, accumulator wood to make it even more comfortable and autonomous.

06 November, 2014

3D printing: Closer to the general public

Since companies like Shapeways that can mail you printed the piece that your imagination is capable of creating up, like design your own jewelry in precious metals or plastics , 3D printing is becoming closer to being the next fashion, displacing the "smartphones" in sales.


05 November, 2014

Example of success: changing oil boiler with wood boiler

If you have boiler heating oil, do as Gregoria and Manolo; consider installing wood boiler

The wood boilers and inserts are increasingly popular and successful, the possibility of getting free firewood (cleaning mountains of fallen trees and dry branches) is an advantage.
Today I will discuss the case of Gregoria and Manolo, from La Rioja (Spain), this winter asked me for placing an insert stove with pan for heating and hot water, they were complaining of bills for diesel fuel (3,000 euros annual) due to poor insulation of their house, the doors and windows are made of iron (discouraging thieves), and while they are thinking to better isolate 150 m2 over two floors, because it requires a very high energy expenditure.

They were Not decided between several models, and models from Baxi Roca, the cheapest they found was Albizia model (70% yield, € 1,200 approx.) unregulated auto shot, and Serval (80% yield of 1,900 €), Portuguese manufacturing.
Update 02/11/14: Gregoria tells us this winter "around here we continue with our hydroboiler running, although at least in our case, has not been as great as expected, due to poor insulation we think of our house (that have not yet been undertaken.) The truth is that when the temperature drops below 5 °, we are still with a bit poor temperature, unless we burn more than 100 kilos of firewood a day ... When the temperature is not so cool if we got a lot more pleasant when we warmed up first with diesel. Lately, we have implemented a mix that works pretty well. As we still have operating the oil boiler when we turn on the stove, once the day we launch the diesel, about 20 or 30 minutes, this causes less firewood needed to heat the entire circuit and we heat faster. The fuel consumption is minimal, we took 70 euros all winter so far . Furthermore, for reasons of lack of time ... we stopped fetching firewood us, so we bought it at a fairly reasonable price 11 cents a kilo, beech and oak. "
Finally, although the choice of pellets is the most convenient, they decided on putting a wood, having the chimney suitable for stove measures, and have free fuel themselves like to enjoy nature and take advantage of clean mountains respectfully with their maintenance, removing broken branches and dead trees, so opted to put the model Albizia Baxi Roca.

And they can not be more pleased with the result: With 50 kg. daily dry firewood, collected directly from the mountain, they get put at 20 all day, your house look new, Gregoria told me enthusiastically.

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"