Winding tower or Förderturm

This is a reminiscence to all miners in germany. Because the last coal mine was closed on December 21, 2018.

###How to print:
- 4x top1
- 4x top2
- 2x top3
- 2x middlie_outside
- 2x middle_inside
- 2x wheel
- 2x axle
- 1x plate_top
- 1x plate_bottom
- 2x frame1
- 2x frame2
- 4x anchor

###Update 16. Feb. 2019:
- Frame divided in two pieces
- right orientation for all things

###Update 16. Mar 2019
- Adding 2nd stage
- 1x 2nd stage top
- 2x 2nd stage bottom
- 2x middl