Thanks to Pat Jones for this cool mod... it makes your Apollo take-apart!

First you have to break the axle so the Apollo is in two pieces.

Next you have to remove what's left of the axle. I drilled out the axle using progressively larger bits untill it was mostly gone. Start with a smaller bit than you need, so you don't mess up the yoyo half by drilling off center. Remove any left over wood from the axle by scraping it out with a very small chisel. Do this to both halves.

Next you need to plug the holes you just made. Find a dowel that fits tightly in the hole you just drilled. Cut it to length (a little longer than the hole is deep) and glue the bejeezus out of it. Tap it into place with a hammer. The reason we plugged the hole instead of leaving the axle in is because we wanted to be sure we filled the hole solidly with no air spaces.

Once the glue has cured, remove any excess dowel with a sharp chisel. You want the dowel to be flush with the inside of the yoyo half.

Now on to the drill press....

You will need 2 drill bits. Take your 3-1 (the one you are stealing the axle system from) and find the bits that correspond to the small hole that goes all the way through, and the larger hole that only goes half way through.

The holes we are about to drill need to be straight and on center.

To find center I used a center finder that is composed of a plate with a raised v on it, and a slit in the plate that bisects the v. These are available at stores that cary wood working supplies.

Mount the yoyo halves on your drill press so that the bit will hit the center point you just marked. I clamped a couple pieces of wood to the drill press to rest the yoyo against so it would not move.

With the smaller of the two bits you selected, drill a hole all the way through each yoyo half.

Next put the larger of the two bits in the drill press. Take your 3-1 and place it on the press. With the drill turned off, lower the bit into the hole where the axle nut sits. When the bit hits the bottom of the hole set the depth stop there. This way the drill cannnot make a hole any deeper than the hole in your 3-1. Put the Apollo half in the press and drill the larger hole. Flip the half over and drill from the other side. If you set the depth stop correctly, you should have matching holes with a thin bit of wood left between.

After drilling out both halves it's time to install the axle system....

We have to seat the nut in each half so the hex part of the nut has a spot to fit into. To do this, put the nut into the hole, and hit it with a hammer. You will scuff up the nut less if you set the yoyo half on the table nut side up and place a piece of hard scrapwood over it to protect it from the hammer.

Once the nut's are set in their holes, feel free to screw your yoyo together with the axle and enjoy your very own Apollo Pro 1-1.