Hi George,

I don't think you can grind aluminium because it is soft and quickly clogs up the wheel. You need to flycut it - remember that operation ?!

This also reminds me of a friend who tried to grind ali on an overhead grinder machine where the baseplate to hold the workpiece was a magnetic table. Luckily we didn't need to reach for the accident book that day, but it could have been very nasty.