Well......
Had another go, with geometry set (99p Wilkinsons), squared paper, cardboard cut outs, imagination etc....
Managed to prove
one thing. I've totally lost any trigonometrical ability. Despite using it almost daily while working for a living!
Sooo....... After all that waste of time, decided to build a conventional crank assembly!
Drilled the deck 5mm, and threw away 6off assorted/ useless, new, tin coated countersink bits. Before finding my old rose bit, from the 1960's.
Consequently, not a lot of progress made, in a lot of (precious) time........
The column's rather high at the mo. Better to shorten by an inch, than to extend.
The bearing sleeve, through the column, is 1/2" dia brass, and will have a pair of ballraces.
The discs are 2" dia. The thicker one will be the boss of the 5 or 6" dia flywheel.
No progress possible over the weekend.
But hope have the time, to come up with a means of holding a dozen balsa wood discs securely to an oscillating 4mm piece of silver steel........
Hope your gob's better now, Dave.......
David D
