WestWind wrote:I use a tablet, usually at a 1-pixel sized non-fuzzy brush. I'm pretty new to brushes, which might explain that issue.
Ok, hm, well. Usually paintbrush isn't necessarily the best for creating smooth lines, especially thin ones... Paintbrush is more useful when you want to do more special things, but for simple lines, the ink tool is better.
You can adjust the size of the ink tool much more accurately, on a 0,1 pixel scale, and the way it's rendered makes it much better when you want to create sharp, smooth lines.
When you select the ink tool, you get the tool options with 2 sections: first is adjustment, and under it is size and angle. The angle doesn't matter, the size I usually set anywhere between 0,5 and 2,0. Then there's the sensitivity section, and under it is size again, tilt & speed, these control how the tablet input affects the line. If you want to draw consistent lines, set them all at zero, that way your line thickness stays the same regardless of pressure. That's usually the best setting for drawing borders, except if you want to do lines that look more hand-drawn, then it's good to add some size sensitivity - this will vary the size according to the tablet pressure (if your tablet supports pressure sensitivity, all decent tablets should though) so that if you set it at 0,5, the line thickness varies between (0,5 * size) to (1,5 * size).
Under the sliders you'll have the type/shape settings, which control the brush shape, but unless you want to do calligraphy, you can just keep it as a regular round brush.
Also, when you draw lines, work at a 200% zoom at least, for tight spots maybe even higher. This way you'll get twice the accuracy for your lines. Remember to raise the pen at reasonable intervals, so if you have to undo you won't have to redraw huge stretches of line... for that matter, you can always use eraser instead of undo. If you have a tablet that has an eraser, you can set a different tool for the tip and the eraser, so it's easy to switch between them...