Back to electronics:
It was my desire to own a exposure box for making PCB, but time always prevented me in doing so. Now that I have my full time making things I decided to make one. I am supposed to make a wood box but my skill in carpentry is quite zero, so I went to our small stock room hoping to find a suitable ready made box. Surprisingly I spotted our old A4 Flat bed scanner which is just lying full of dust.... and here my exposure box was born.
My old WinScan A4 Tech scanner.
5 pcs. Omni T5 Ultra slim Fluorescent with Electronic Ballast - PH199.75
Positioning the lamp
I decided to put 1mm aluminum plate to level the lamp casing
I want all things easy so a 3M double adhesive was use
Fixing the wiring with the supplied plugs
the good thing is... the socket are in both end of the fluorescent holder
Powering up
The finish box
Next will be the Pic base timer
Monday, November 28, 2011
Hydroponics My New Hobby
What is hydroponics?
Hydroponics is the growing of plants without any soil. Plants require three things to survive – Light, Oxygen and Nutrients. Since soil is the normal source of nutrients for plants, when removed we need to replace it with something else. This is usually done by adding nutrients to the plants water source.
What do I need for hydroponics?
There are many different systems you can buy or build for hydroponics. Unfortunately, as with most things in the Philippines, your choices will be limited.. so be prepared to go the DIY route.
The systems generally all work along the same principles. You have your seed or plant which is held in place by an inert growth medium (e.g Rock Wool). The usual methods of supplying the plant with nutrients when growing hydroponically are:
1) Have the roots sitting in a mix of water/nutrients
2) Spray the roots with a water/nutrient mix
3) Drip feed a mix of water/nutrients
Some people take this a step further and use a cheap air pump and air stone to aerate the water which provides more oxygen to the roots and further helps the plants growth.
Some people take this a step further and use a cheap air pump and air stone to aerate the water which provides more oxygen to the roots and further helps the plants growth.
Here are some video from UP Los Banos
Hydroponics is the growing of plants without any soil. Plants require three things to survive – Light, Oxygen and Nutrients. Since soil is the normal source of nutrients for plants, when removed we need to replace it with something else. This is usually done by adding nutrients to the plants water source.
What do I need for hydroponics?
There are many different systems you can buy or build for hydroponics. Unfortunately, as with most things in the Philippines, your choices will be limited.. so be prepared to go the DIY route.
The systems generally all work along the same principles. You have your seed or plant which is held in place by an inert growth medium (e.g Rock Wool). The usual methods of supplying the plant with nutrients when growing hydroponically are:
1) Have the roots sitting in a mix of water/nutrients
2) Spray the roots with a water/nutrient mix
3) Drip feed a mix of water/nutrients
Some people take this a step further and use a cheap air pump and air stone to aerate the water which provides more oxygen to the roots and further helps the plants growth.
Some people take this a step further and use a cheap air pump and air stone to aerate the water which provides more oxygen to the roots and further helps the plants growth.
Here are some video from UP Los Banos
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