Once upon a time, I had accumulated a lot of useless bowling balls.............

People that bowl a lot will do this.  They'll accumulate lots of balls over the course of a couple of years.  It's not uncommon to carry 6 or so to the lanes every time you bowl.  Join a couple of leagues and you will find an excuse to use them all.  The reason why is the oil on the lanes.

But the story of how they become useless might be interesting to some folks.  You see, as you roll the ball down the lane over and over and over and over again, it acts like a sponge and picks up the oil from the lane.  The ball itself may seem pretty hard, and if you clunk it on your head you will notice it surely is!

But the truth is that the colorful shell of the ball (that I use to make most of my jewelry) is porous.  A typical bowling league might go for 40 weeks @ 3 games per week.  The lifespan of a bowling ball might be around 500 games, so sooner or later, if you use this ball a lot, it will absorb a lot of lane oil.  If you weight the ball after you drill the holes in it when you buy it, and weigh it after you've used it all bowling season long, you will notice that it's heavier.  The difference in weight is the oil the ball has picked up over the course of the bowling season. Oil inside the ball will decrease the reaction of the ball.  Good bowlers will notice that the ball doesn't have the same "life" that it once had.  It doesn't hit the pins with the same "punch" it once did.

At this point, you have a few of options:  buy a new ball and throw this one out, try to get the oil out of the pores, or make jewelry.

Most folks will opt for one of the first two choices; usually the first.  But it's worth mentioning that there is a way to get some of the oil out of the ball.  Here's how:  Stuff the holes of the ball with rags, and use duct tape to carefully tape over the holes so they are totally sealed.  Fill a utility sink with water about 120 degrees F.  Hot!  Submerge the ball in the hot water for about 20 minutes.  It's important to mention that if you don't cover the holes properly, the water will leak into the holes and fill inside center of the ball where it will stay, and this will destroy your ball for good!  After about 20 minutes or so, you can take the ball out of the water and let it dry, and resurface it again before taking it to the lanes, where you will destroy the pins once again with this ball!

So, back to how I started to make jewelry from these balls.  At some point a ball will become useless.  I can't stand putting bowling balls on the curb.  I make jewelry.  They're pretty.  Let's cut them up and make jewelry!

There are three components to most bowling balls made these days:  the inner core (much like the "planet core" in that Star Wars movie with Ewan McGregor as the young Obi Wan Kenobi, and Liam Neeson as Quigon;  Obi Wan's Jedi Master), the outer shell (the colorful part), and the filler material beneath the surface of the shell and surrounding the core.

It starts with a very very large and tall vertical band saw.  After much experience, I can say that there is a right way, and a wrong way, of cutting apart a bowling ball.  It's all about efficiency.  We want to be recycling as much of the ball as possible, so we can't go slicing and dicing all over the place.  Ideally we want to get parts of the shell (which is generally about 1cm in thickness) in squares about 5cm x 5cm (2 inches x 2 inches).  Once we have these squares, we can do a whole lot with them.  We can slice them long ways and make 5mm thick slabs of colorful shell pieces to be cut apart in different shapes with a hole saw or a belt sander.  We can slice them longways and make four 5cm long pieces which we can turn on a lathe to make cylinders, or parts, or beads, or other things.  Everything comes efficiently from 5cm x 5cm squares of the shell.

I am currently working on ideas for other products.   Got a suggestion?  Write me and tell me sbout it!!