Perhaps the humble pulley—multiple parallel pulleys to reduce lifting effort—is not as common as in this era of hydraulic loaders, but it is still a useful mechanism whenever there is a lifting task.to this end [semi] produced A 3D printed block and trolley system, As you can see from the video below, this makes lifting moderately heavy loads a breeze.
This is a simple enough mechanism. The 3D printer provides pulleys, bearing housings and connection points, as well as steel bolts that hold everything together. Its maximum weight is 20 kg (44 lbs). Although you may hesitate before believing that it has a 200 kg engine, we guess that its capabilities will be much more than what we have shown. If you want to give it a try, you can find these files on Thingiverse.
Interceptions and tackles should hold a special place in the hearts of engineers all over the world, because The first product manufactured using mass production technology. This early 19th century factory came from Mark Brunel, The father of Isambard Kingdom Brunel, we have used him as the subject of previous Hackaday works.