"Par One" is a Rolling Ball Sculpture with golf. A man operating a ball machine gets
a ball in his bucket, and pours it onto the golf course. A golfer with a driver hits it
onto the course, where it travels down to a spiral funnel hole. A putter hits the ball
toward the hole, it misses the hole, and a gopher pops up and knocks the ball into
the hole. This sculpture is 24" (61 cm) tall, and has two separate tracks for the balls
to travel to the bottom.
What does "Par One" mean? At each hole in a golf course there is a sign that says
what the "par" is on the hole: how many strokes it should take for a good golfer to
get it in the hole. The easiest hole is "par 3"; a harder one is "par 5". There is no "par
1" because then the golfer would be expected to get the ball in the hole in one shot!
Here, there is a "par 1". However, the golfers get help from a gopher, and still get it in
the hole after hitting a duck or a squirrel.
The ball comes in behind the ball machine. First the ball
comes out of the chute into the bucket, then the man
leans over and dumps the ball onto a track.
Infra-red lights and sensors in the ball machine and the
driver and putter tell the two computer chips when a ball
is ready for action.
When a ball arrives under the putter, a linear actuator raises the ball into
position under the putter. A servomotor makes the putter pivot his body and
swing his club.
The putter's ball hits a squirrel, misses the hole, and a gopher
pops up and knocks the ball into the hole. He is activated by
Inside of the base there are seven motors and two microcontrollers
(computer chips) to run everything.
One motor turns the spiral lift to get the balls to the top.
Four servomotors control the swings of the driver and the putter, the
emergence of the gopher, and the operation of the ball machine.
Two linear actuators (by Firgelli) push the balls up from under the
golfers into position to be hit.
click to enlarge
The mechanism for the ball machine
The ball machine guy
The gopher popping
up out of his hole
The inside of the base
The duck is actually there
to slow down the ball, so
that it doesn't go into the
spiral hole too fast.
What looks like a ball on
a tee is the plumb bob.
"Par One" must be level to