Colloidal crystals of high particle concentration were smoothly and continuously fabricated by simple centrifugation of a dispersion of polystyrene particles in water. The larger the applied centrifugal acceleration alpha at the bottom of the growing crystals (i.e., the interior wall of the container), the higher the growth rates are. The average grain sizes in the crystals increased with decrease in alpha, and below a critical value of alpha, we obtained relatively large columnar-shaped grains. The average volume fraction of the obtained colloidal crystals phi(ave), increased with an increase in the dispersion's KCl concentration C(KCl): at alpha=82 G, phi(ave.)=0.57 and 0.61 at C(KCl)=2 x 10(-3) and 8 x 10(-3) mol kg(-1) water, respectively. The grain size also increased with an increase in C(KCl). The maximum grain size in this study was greater than 0.3 mm in width and 8 mm in length. (C) 2010 Elsevier B.V. All rights reserved.