Changes

==Procedure for Painting==

==Procedure for Painting==

Wear gloves and hold the fiber in one hand while spraying on the paint with the other. It is best to paint while sitting down at the painting table rather than holding the fiber and brush at waist level. If your eyes are lined up with the paintbrush you will be able to see where the paint stream is going. Spray a little, then pause and look at the fiber. If it appears speckled with clear points (when painting a waveguide), or green points (when painting a scintillating fiber), it needs more paint. If the paint layer is covering the intended area, it still may be too thin. If you can see through it too much, it needs more paint. The paint does not have to be completely opaque, but you should have to look hard to see anything other than white.

Wear gloves and hold the fiber in one hand while spraying on the paint with the other. It is best to paint while sitting down at the painting table rather than holding the fiber and brush at waist level. If your eyes are lined up with the paintbrush you will be able to see where the paint stream is going. Spray a little, then pause and look at the fiber. If it appears speckled with clear points (when painting a waveguide), or green points (when painting a scintillating fiber), it needs more paint. If the paint layer is covering the intended area, it still may be too thin. If you can see through it too much, it needs more paint. The paint does not have to be completely opaque, but you should have to rotate the fiber or hold it up to the light to see anything other than white.

The distance of the brush from the fiber during painting is important. Holding the brush too close to the fiber causes the paint to bead up along the edges and be too thick there. Four inches from the fiber is a good distance for spraying the paint.

The distance of the brush from the fiber during painting is important. Holding the brush too close to the fiber causes the paint to bead up along the edges and be too thick there. Four inches from the fiber is a good distance for spraying the paint.

===Cleaning the Tube for the Paint Jar===

===Cleaning the Tube for the Paint Jar===

The spray paintbrush sometimes does not spray well because of clogging somewhere. The paint can even clog the tube used to draw paint up from the jar. To avoid a blocked tube, the tube should be rinsed after use with water at an adequate pressure: as much as possible without splashing water in your eyes.

The spray paintbrush sometimes does not spray well because of clogging somewhere. The paint can even clog the tube used to draw paint up from the jar. To avoid a blocked tube, the tube should be rinsed after use with water at an adequate pressure: as much as possible without splashing too much water.

==Looking at the Fiber==

==Looking at the Fiber==