I was thinking how I was going to cut out the two 10"
for the magnet rotors.
I thought I would make a compass with my jigsaw but it didn't work as
the blade just kept going out from the centre
until the blade
snapped. In the end I just cut along the line with the
jigsaw and it was
2mm out of being round, although it did
take me 1/2 hour to cut out one!
I found a nice way to grind the high spots off
angle grinder on an old battery and fixed the disc to a piece of wood
with a screw
and then turned the disc to grind the high spots off making it
nice and round.
I found it hard to cut the discs centre out but I burnt my
way through with a hole saw.
I have drilled the four 12mm holes in them for the stanles steel