FBM table
From RoCKIn Wiki
Reference frame on the FBM table
The reference frame for the FBM table is defined by visual markers, as shown by the picture on the right The visual markers are Alvar tags. Tags number 0, 1 and 2 have been used; here you can find numbers 0 to 8.File:Markers 0-1-2.pdf is a pdf version of the visual markers on the FBM table, available for printing (A4 format; markers are contained in a 190 mm square).