| Barry
Ill definitely go with the original bungee sprung axle and let a heading hold gyro sort out the ground looping.
To anneal the litho plate I smooth soap as evenly as possible over one surface, let it dry completely, heat until the soap turns a dark brown (almost black) then allow to cool naturally. I use the largest ring on the gas hob to heat the litho, holding it quite a way above the flame; a blowlamp has a too concentrated flame and you tend to get hot spots so the annealing isnt even.
A point about litho is that it all varies; my new supply wont emboss the hex head bolts without splitting so Ill resort to gluing on small slivers of suitably sized hex plastic rod. Most of the nuts and bolts are actually hidden by the bungee cord fairings so they neednt be added.
Grahame |