CONCLUSIONS
It is difficult to make proper conclusions without extensive mechanical, field testing, and user acceptability testing.
The machine described in this report will effectively thresh sorghum and millets, and should also thresh wheat. It is probably not good at threshing beans (stupidly we never tried, but beans normally requires a peg type mechanism) and almost certainly no use for rice (which normal requires a wire hoop mechanism). Maybe this design can be adapted to provide all 3 types of drums or beaters.
The machine will also mill grain to various degrees of fineness, down to 2.4 modulus if the plates are not too worn.
The labor productivity of people operating the machine is expected to be about 1.4 times that of traditional methods, for threshing and for milling.
The machine should pay for itself within a reasonable time period (depending on utilisation of course - checkout the section Operational Costings above).
The machine could be adapted for engine power but is not really designed for such.
The machine is not suited completely for production by 'village technology' methods, since some components require middle levels of technical equipment and skill, but could be manufactured by a 2 level process as discussed above.