I have taken a particular interest in this thread because I understand Klug's problems - they are similar to my own and millions of other peasants around the world. Being a peasant does not mean that one is of low intelligence, nor necessarilly poor, although poverty is often an additional problem. It simply means that it is essential to live within the constraints of the particular country in which the peasant lives. Many of us have a good lifestyle - my own is better than most of the rest of my life. That is not the point. Klug says he wants to make a potato lifter along the lines of the link he gave in Post #19. He does not have any dimensions. Sure, it looks simple enough to construct if there are some measurements available. Trouble is, nobody has come up with any. The man merely asked for help with dimensions, he knows what he wants to make, but without any starting reference point he is working blind and has to make guesses.
We all know how elevators or shakers work, but nobody has offered any suggestions on the size of the the blade or the thickness of the rods of the vibrating follower, whether an elevator or simple rods as in the link at #19. One thing nobody has picked up on either is the fact that a vibrating blade rather than a static drag blade reduces the power requirement by a large amount.
Unfortunately I do not have any dimensions to offer him either, but telling him what you could use in the US is not a lot of help to him. I am not being critical, because I did not realise myself until I lived here how different life can be in supposed western civilisations that do not have the same markets as others. I too had been accustomed to buying up scrapped or well used equipment at auction, private sales or dealers if I needed a particular part. This is not possible in many countries.
If anybody can come up with some measurements then please help the man.
