You can make a Yo-Yo with some help of a skilled person who has a three inch hole saw. It should not be too difficult to find a neighbor or crafts person to help you with this. It is great fun to run a yo-yo and do some tricks with it when you have practiced some. Go ahead, good luck! Don’t forget to click on the Science of spinning discs in the side bar for your “in depth” explanation of how the yo-yo works!
The materials you need for the yo-yo. The two plywood disks are made with a 3 inch, or 7.5 centimeter hole saw. You need help from a carpenter, plumber or handy person in your family or among friends. If there is a workshop close to where you live, don’t hesitate to ask for some friendly help. You will see how trades people work and you will learn a lot in just a short period of time. Plus, you most likely have two or more disks for your yoyo! The string can be anything, but the best is made from nylon or other like material and normally is used for blinds and curtains. The piece of dowel wood is 6 mm or 0.25 inch in diameter dowel wood.
When you have the materials, put some tape around each disk, make sure you pull hard on the tape while you put it on. and only go about two turns. Put the same amount to tape on each disk, they should balance; the same number of turns on each disk…
The piece of dowel wood should fit with some pressure in the hole of one disk, hammer it gently in, use some glue if you wish.
Tie the string around the dowel wood and put a drop of glue on so it won’t slip, then put the other disk on the axle that sticks out of the other disk. Bring the disks close together, about 3-5 millimeters, the gap should not be too big.
Wind the string and let the yo-yo drop by its own weight. It will speed up and just before it is at the end of its string, quickly pull up with a short quick small jerk… This requires some practice, but soon you will get the feel and you can start to experiment with all kinds of tricks.
The yo-yo in a side view, note that the space between the two disks is not more than about 5 millimeter. Have a look how the string is wound up, with the disks so close together the winding is easier and the yo-yo is better balanced.
The assembled and wound-up yo-yo, ready for action….
The discs are made of a good quality plywood so that they weight rougly the same. You can make them with a 3 inch hole saw which makes a centre hole of 1/4 inch. This centre hole you have to drill larger with a 3/8 inch drill. You need some help with this, but once you have the discs you are “off to the races”.
Have a look at the photo series, most of the construction is self explanatory, if not study the photos and the text togetner with a friend and you will succeed!