About this 3D model

Hello everyone I made this camera slider it has so many amazing features, for example it can slide and rotate the camera in the same time it can stand in 90 degree + 30 degree the electronic so simple don't need arduino or any coding I recommend you to watch a tutorial video first https://youtu.be/slqCsvnURbI for this project you need this things : Hardware parts: wiper windshield DC motor-12v power supplydpdt switchtwo limit switchmotor speed controller-three linear shafts (one of them 56 cm and two of them 60 cm) all of them 12mm diameter-5 linear bearings for 12 mm shaft-two big ball bearing ( inner diameter is 17 mm and outer diameter is 40 mm)-one small ball bearing ( inner diameter is 8mm and outer diameter is 22 mm)-six 13mm head size bolt (55 mm length)-four 8.5mm head size bolt (52 mm length)-one 8.5mm head size bolt (78 mm length)-150cm of 6mm belt-1kg of PLA filament