Just finished for the day. The first brake drum has been skimmed - harder than you might imagine........
I mounted the drum in the chuck on the relatively small diameter hub to ensure that it all runs true. I then clocked up on the hub, but unfortunately due to the quick start up of the lathe and the huge inertia of the drum with built in drive sprocket the chuck would often slip on the hub and start running out of true whenever you stopped and started. The solution was to clock it all up, ease it into gear, then skim it without stopping for inspection. Thankfully when I clocked it after skimming it hadn't moved.
Right, off to the pub......
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