This bicycle dynamo torch is an IKEA hack. Due to restrictions from a school assignment, we replaced the Ljusa generator with a DC motor.

See the dynamo in action:

https://youtu.be/pfp7fnCYbqk
https://youtu.be/UXYxXMpWPtA

Read more on https://antiheltene.wordpress.com/

Parts list:

1x IKEA LJUSA
1x DC Motor
1x 28x3 mm rubber O-ring
1m insulated cable.

This dynamo is made as a project at the course Mechatronics Engineering Design at Technical University of Denmark in the spring of 2015.

Mounting instructions:

Dynamo is attached to the bicycle by friction wheel with contact on bike wheel.

The torch is mounted on the bicycle handlebar with a cheap mount such as this: http://www.dx.com/p/universal-bicycle-mount-for-flashlights-and-gadgets-2cm-3cm-diameter-adjustable-15642#.VSPk1fmsV8E

Assembly is shown here:

https://youtu.be/8vCy7zohqEQ
https://youtu.be/DNM-TM2wQkM
https://youtu.be/95hH6zzJJl0
https://youtu.be/tfR0Daq5qho