Started: September 2019 Completed: September 2019 Released: September 2019 Instructions are available here

Instructions (free download) PDF Instructions: A19040I(pdf instructions) MPD file: A19040M(mpd cad file) BSX parts list: A19040P(bsx) Notice: The instructions and Parts lists do not include rails. The instructions describe only PowerFunction L-motor version. The instructions are intended for persons who have experience assembling Lego Technic. Update history: February 16, 2020 :Building Instructions were made newly.