Laser cut toy

I assembled the balance toy and it worked, but was unnecessarily complicated so some changes have been made.  To make the axles I have bought metal binding posts (aka Chicago studs) which are available on eBay for not much.  Or, for a lot more money use bookbinding posts, same thing really.

I also changed the upper wheel so that the inner part is slightly offset on its axle hole; this causes a wobble as the toy descends the string.