Gravitrax compatible electric Lift

First of all, thanks to Mike0365 for the fantastic design! It works perfect.

https://www.youtube.com/watch?v=aWFjUElS08Q

A slightly modified version.
I replaced the battery holder with a box with switch.
( https://www.thingiverse.com/thing:2821282 )
Furthermore, I closed the base stone so that it fits into my designs.

Required for assembly (lift)
- mini motor DC (i use a Mabuchi RE-280RA-2865)
- some 26awg wire
- screws (M3x10 countersunk screws)
- 3mm round material
- 2 zip ti