Below are links to six printable targets. All are sized for 16-inch (410 mm) stars. All are binary (not sinusoidal). There are three stars for Epson printers, which want 360 ppi input images, and three for Canon printers, which take 300 pi images. To download a file, right-click on the link below, then choose “Save as…”
For optimal results, don’t scale the targets; send them to your printer driver at 360 ppi in the case of the Epson files, or 300 ppi for the Canon ones. If you want to print on smaller paper, crop the targets, but print at 360 or 300 ppi. If you want bigger targets, scale them using bilinear interpolation.
These are monochromatic files. When you open them in Photoshop, you’ll see something like this:
Since every pixel in the files is either pure black or pure white, it doesn’t matter what grayscale profile you assign. Gray Gamma 2.2 is as good as anything.
And here’s a really big file (12000×12000 pixels, 200 spokes), for those making a really big target. There’s a fair amount of aliasing towards the center, but that should all be a blur in actual use.