This is a set of ball-chain gears for those making their own RepRap or Repstrap and are unable to find timing belt. It includes all the gears for the X, Y (3.3 and 3.5mm chain) and Z (2 varying 4.5mm chains) axes. Rims included.
Cut this on a P1-sized (180x180mm) 4.5mm acrylic. Do not mix type A and B gears. Smaller gears are etched with the chain size in mm.