You will need to keep the original design so that you can refer back to it. After you have made copies of your traced design start cutting out the areas that you need to cut out. Then place the home made stencil onto your project and begin to airbrush your project. If you want to use a more durable material to create your stencils you can use the plastic pocket folders. By discussing your techniques and sharing your insight you will show your audience that you are an artist that knows what they are doing. Once you have a couple of post up telling about yourself and showing off some of your work then you are ready to get your blog seen by the world. Some blog sites such as Shout Post and Tblog actually show your blog posts off for you to other bloggers. If your airbrush is internal mix then it will have a needle. The purpose of the needle is to control the paint flow. Any damage to your needle can cause very bad paint spray patterns. It is important to keep your needle from getting bend and either straightening the needle or replacing the needle. The air cap and head assembly are on the front of your airbrush and they cover the tip of the needle. If the automotive paint that you have chosen does not flow then thin it down so that it flows. The paint should be thinned to about a milk thickness. A good automotive lacquer will work fine to thin down your automotive paint. Different airbrush art calls for different psi on your compressor. PSI stands for pounds per square inch and for automotive airbrush art you need a compressor that has a psi of 55-65. Make sure that your compressor is rated for the type of work you are going to be doing. In this case it will be airbrushing t-shirts. When doing airbrush art onto t-shirts as a business then invest in a commercial air compressor. It will be worth it in the long run. Most of the times you will need to heat set your paints so that they can be washed without fading or bleeding. Dual action is when the trigger on the airbrush controls both the air and paint. The trigger is pressed down for the air and back for the paint. Now when it comes to the feed on the airbrush there are three types of feeds that you can choose from. The type of feed you choose will also depend on what you are doing as well as what you are comfortable working with.