| It was a bit of a ScrapHeap challenge!!
I once worked for a ski lift manufacturing company and we made our own flanges for mounting the wire sheeves. This involved trepanning 10mm thick plate at about 300mm diameter on a very large and very old lathe. As you say, if you fed it a bit too fast and it snagged you could end up wearing it.
Consequently I have never been a great advocate of the technique!!!
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“Dirty British coaster with a salt-caked smoke stack, Butting through the Channel in the mad March days" |