I received my Ultimaker Original + kit yesterday (only 1 week after ordering it!!!), and of course started building immediately. But I ran into problems when I was assembling the X and Y axis. I have 5 timing pulleys left, but only one with a hole that is wide enough for the axis, the other 4 have a small hole (like the pulleys that fit on the X and Y motors.
Did Ultimaker send me the wrong pulleys, or did I do something wrong?