HO 1/87 Scale Jib Crane

this is a ho scale model of jib crane from my working area. i added the orginal photo of real one. i tried to do the a smiliar one.. 

it can turn 360 degree and also the hook can slide on beam.

the hook design i use is from another persons crane,  (i just rescaled it %30 to make it smaller)

you can find the design it here : https://makerworld.com/tr/models/1418133-tower-crane-cyberbrick#profileId-1472966

part 2 and slider need support.