About this 3D model

The classical scheme. Without autoleveling. Heavy duty construction bed. Video in Russian. But I hope that everything is understood. https://www.youtube.com/playlist?list=PLBWssaGimxpPLJu8NWk4KrEyPyFcsFcQd MC3 Stealth, MC2 and more - http://www.thingiverse.com/Topdevice/designs