Dear Mark, The model dimensions are displayed on picture g_model.gif The rotation angle is 15 degrees. I also attach the color map of magnetic flux density distribution (flux_density.gif). There you can find spots of local minima where the force is zero. Also I added the XY-plot with Bx,By components distribution along the line on interest (this line starts at point 0 and is directed south-west). You can observe that both Bx and By- components are changing along the line, so I cannot easily calculate the field gradient. Instead I placed the dummy 1 mm ferromagnetic particle and measured the force in QuickField. Please see picture force.gif attached. In report dated November 22 it was shown that the force/weight ratio does not depend on particle size (both values are directly proportional to the volume). The 1 mm-sphere ferromagnetic particle weight is 0,000320 N This is a new design that does not resemble any of the previous ones. And it took me 2 hours to simulate and build the report. Next time if you need to modify it (rotate a coil or change the spacing) I can do faster. Best regards, Alex ------------------------------------- Aleksandr Liubimtcev QuickField Support team http://quickfield.com e-mail: aleksandr.liubimtcev@quickfield.com On 04.12.2018 11:57, Mark Arokiaraj wrote: > Dear Alex, That is fine. We can use coils... any source of magnet is fine. We could get maximum of 10 cm extension from the coils a good force/ weight. This is a different model and it is in the shape of G for God himself. We shall see if there is more luck here. We will try with the same angulations as given in the diagram. With regards, Mark