Full article with more pictures - How do balance bike yourself.
Disassemble my balance bike to win the seat and took photos at the same time for this statement.
So, we need a sheet 12 mm sanded plywood, a set of bolts and studs piece (you can rod) by 6 mm, slice fanerku 4-5mm seating foam of 50 mm and a piece of leather / fabric upholstery seat (I had a sofa fabric) , and of 12 "wheels from the children's bike, but it is better as any wheel from the carriage, because I turned balance bike 4 kg, and from 2.5 - wheel ... like from strollers, would weigh about 3 kg just ...
First, it turns out that something like rough wooden socks and then this. (After skin, etc.)
The size of the longest piece (sides) - 600 mm. Other details of begovela - proportionally. At the bottom is a link to a photo in a higher resolution, if you wish, you can print, put the net and transfer the drawing on the plywood.
4. Making the wheel.
First he cut the wheel in the form of an arc. The inner radius, I took more than double the distance to the seat, as his hands are growing out of the spine, and of the arms that have a width of about 25 cm.
Then cut in the steering wheel 2 rectangular groove. Next, cut a wide pad with the letter "P", it cuts through the slot on the 2/3 pins and glue into the slots steering.
Attention! Do not forget to put the pin 2 large washers to reduce friction when you turn the steering wheel.