Thanks for the kind comments. Well it seems a long time since I did anything with it (over three weeks since). The intentions were there even if my efforts were diverted elsewhere.
Grass cutting, weeding and hedgecutting chores. I decided to do something last night so I made the shape of the Chaff blower and the pipe therefrom. The pipe is 6.0mm OD with the bare wires of a 4mm stripped wire shoved inside (to allowing bending and shape keeping.
The bottom box under the riddle was made up underneath the thrasher (where the chaff would collect) and some paint on, then left to dry. This morning it was assembled and attention turned to fixing the various drive shafts. Some go right through and others just from one side or the other. Bushes/bearings (non-working) were from plastic tube and washers, then glued in position before painting. The shaft is 4mm (nominal) dowel.
I now have to make most of the pulleys, fashion drive belts and then turn my attention to the grain bagging end. At the moment this end awaits a four chute assembly on which the sacks would have been hung. There was no weight on the fastenings as the ground would support the filling sack. Sometimes a door was used to stand the sacks on whilst filling. If my memory serves me right, there were 2 firsts (best grain), 1 second (not normally for milling) and a one for thirds - the latter being seeds other than grain (tares or wild oats) for which the hens would have a good feed.
When all this is done, there will be a tarpaulin to fashion and fit ready for travelling.
But then we are only two thirds of the way through the story. It needs a baler! Something like this one ...
As it says on the side, its a Jones Stationary Baler seen at the last show but one.