Example 'tool' user-configurable file. Print tools are composed of spotting pins that are arranged in a pre-defined plate-format-specific configuration (Fig. 1.). Each user records the pin configurations that are available to them by adding their robotic spotter's list of options to the tool file. Pin configuration directly affects source visit number and maximum meta-grid area (Fig. 1). Tool files for the Qarray2 (Genetix), MicroGrid, and OmniGrid (Genomic Solutions) robotic spotters are available from the SimArray web site .