This inaccuracy can be mitigated to some extent by the use
of a “sync block” to consistently start and stop the train at a
fixed point at the beginning and end of each playback. This
block is controlled by a relay added to the PICAXE circuit. The
relay is activated by pressing the sync button at some time
before the train reaches the block at the end of each record-
ing. As you approach the block after activating it, the speed
should be decreased so that the train enters the block slowly.
Be sure to keep the speed control set to the same slow
speed for a few seconds after the train enters the block to
keep a train that may be out of sync during playback moving
8. A top view of the recorder. Mark the controls
so you don’t have to rely on your memory for the
purpose of each switch.
8
PICAXE circuit part 2 - 6
MRH-Jul 2014
