Airbrush - Types - Trigger

Trigger

The simplest airbrushes work with a single action mechanism where the depression of the trigger actuates air flow through the airbrush. The airbrushes color flow and spray pattern are adjusted separate of the trigger action. This is done through an adjustment of the airbrushes needle placement within its paint tip, by the turning of the paint tip on an external mix airbrush (Badger 350 or Paasche model H are good examples of single action external mix airbrushes) or the turning of a needle setting dial on an internal mix airbrush (Badger 200 or Iwata SAR are good examples of single action internal mix airbrushes). The color volume and spray pattern are maintained at a fixed level until the airbrush user re-adjust the setting. Single action airbrushes are simpler to use and generally less expensive, but they present limitations in applications in which the user wishes to do more artistically than simply apply a good uniform coat of color coverage.

Dual action or double action airbrushes enable the simultaneous adjustment of both air and color at the trigger, by allowing the user to actuate air by depressing the trigger and simultaneously adjust color by sliding the trigger back and forth. This ability to adjust color flow while spraying the airbrush, coupled with the users adjustment of distance from the sprayed surface allows for the variation of fine to wide lines without stopping to re-adjust the spray pattern as is necessary with a single action airbrush. This allows for greater spray control and enables a wider variety of artistic effects. This type of airbrush requires some amount of practice to become proficient in triggering technique and control, but it offers greater artistic versatility to the artists once the triggering technique is learned. Dual action airbrushes (Badger Patriot 105, Paasche VL, Iwata CM-C are all good examples of dual action airbrushes) are of a more sophisticated design model than single action airbrushes, which tends to make them the more expensive of the two.

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