Head for nylon trimmer line

Detailed description http://www.instructables.com/id/3d-Printed-Grass-Cutter-Trimmer/

Trimmer working with nylon trimmer line but for it need more powerful motor and different wire connector for more current. I think a motor RS-550 20000 RPM from old cordless drill will be nice.

Parts:
3x 3d printed parts (2 for head and 1 for button box)
2x M3x8 screw
2x M3x15 screw
1x M3x18 screw
2x M3 wide washers
5x M3 nuts
Some nylon trimmer line dia. 2-3 mm