Balance Bike - Father/son Project
CAD rendering of my son's design
What you will need
Sheet of 1/2 inch Russian poplar plywood
Red oak remnants for parts needing more strength
Wheels from a $10 kid's bike found on Craigslist
Various hardware pieces for assembly
Bushings for steering mechanism7
Handle grips
3/4 inch dowel for handlebars
1 inch wide aluminum bar stock. 1/8 thick
How to do this project
1
My son decided he wanted to design and build a balance bike for his buddy's daughter. This is our adventure in making something outside our comfort zone...
2
![al engineers provide measurements to 3 decimals! Lol](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9MSZyZW5kZXJDbGlwU2l6ZT0y.jpg)
We started off with detailed plans and templates drawn by my son. Mechanical engineers provide measurements to 3 decimals! Lol
3
![fender pieces. Use the first frame and fender pieces as templates to make a second copy.](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9MyZyZW5kZXJDbGlwU2l6ZT0x.jpg)
Trace the paper templates onto the plywood and cut and shape the frame and fender pieces. Use the first frame and fender pieces as templates to make a second copy.
4
![ten them. Keep enough material where the wheels will mount.](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9NCZyZW5kZXJDbGlwU2l6ZT0y.jpg)
Once the fenders are fabricated, hollow out the back of the fenders to lighten them. Keep enough material where the wheels will mount.
5
![g a 1-1/2 inch hole saw.](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9NiZyZW5kZXJDbGlwU2l6ZT0x.jpg)
Easiest part of the project... Cut frame spacers from plywood cut-offs using a 1-1/2 inch hole saw.
6
![](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9NyZyZW5kZXJDbGlwU2l6ZT0x.jpg)
Make the headset from solid oak for strength
7
![faceplate from plywood. Assemble.](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9OCZyZW5kZXJDbGlwU2l6ZT0x.jpg)
Steering assembly. Build the fork and headset brackets from solid oak, and faceplate from plywood. Assemble.
8
![ips from spare bike parts from a friend.](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9OSZyZW5kZXJDbGlwU2l6ZT0y.jpg)
View of the steering mechanism with handle bars installed. Donor handle grips from spare bike parts from a friend.
9
![ght adjustment holes in the frame.](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9MTEmcmVuZGVyQ2xpcFNpemU9Mw==.jpg)
Make the seat and adjustable seat extension. Need to drill out the seat height adjustment holes in the frame.
10
![](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9MTQmcmVuZGVyQ2xpcFNpemU9MQ==.jpg)
Make the rear fender filler and match fender contour
11
![](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9MTUmcmVuZGVyQ2xpcFNpemU9Mw==.jpg)
Assemble the frame using the spacers and insert the oak headset
12
![](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9MTgmcmVuZGVyQ2xpcFNpemU9Mg==.jpg)
Attach steering mechanism to the headset
13
![adjustments..](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9MjAmcmVuZGVyQ2xpcFNpemU9MQ==.jpg)
...dry fit all the parts. Drill out the holes for the seat extension height adjustments..
14
![](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9MjEmcmVuZGVyQ2xpcFNpemU9MQ==.jpg)
Time to take the bike apart to mask the paint design.
15
![or grade varnish.](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9MjImcmVuZGVyQ2xpcFNpemU9MQ==.jpg)
Paint Job. Aqua and white. All other raw lumber gets a few coats of exterior grade varnish.
16
![](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9MjMmcmVuZGVyQ2xpcFNpemU9MQ==.jpg)
Materials to cover the seat. High density foam and red vinyl.
17
![the rear wheel support.](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9MjQmcmVuZGVyQ2xpcFNpemU9MQ==.jpg)
Just about done! Added aluminum bar stock on the back fenders to strengthen the rear wheel support.
18
![](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9MjUmcmVuZGVyQ2xpcFNpemU9MQ==.jpg)
The inspiration
19
![nd cut the rear wheel axel. But yeah, looks like we have a finished product. Great father/son bonding experience. And we're still on talking terms. Lol](https://craftlog.global.ssl.fastly.net/m/ve/b64-16169-1542057435022-b3B0aW1pemVGb3I9ZGVza3RvcGhoZCZsYW5ndWFnZVRhZz1lbi1VUyZyZW5kZXJDbGlwU3RhcnQ9MjYmcmVuZGVyQ2xpcFNpemU9MQ==.jpg)
A few cosmetic things to do. Still have to paint the aluminum bar screws and cut the rear wheel axel. But yeah, looks like we have a finished product. Great father/son bonding experience. And we're still on talking terms. Lol
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