Eat your heart out guys, this thread got me thinking and looking ... my turn has come.
I won a 7 & 1/4" dia 100 tooth circular saw blade with a 16 mm bore off eBay UK for 99 pence ( a dollar forty ) packing & postage cost me nearly three dollars . The Postie delivered it yesterday afternoon ..it's never been used.
I've had a re-look at the drive stepper motor & stepper motor control unit taken off a working variable speed vibrating exercise machine & an old fire damaged workshop small table top drill press that has the wrecked motor & electrics removed .
I think that in a few weeks , if it ever warms up enough , I should be able to make precision 90volt 1 hp lathe mounted milling device to fit on the cross slide then use the saw blade on the lathe cross shaft as my calibration/ setting wheel so I can make my own engraved dials .
It certainly beats the idea of deep acid etching bees waxed turned steel or aluminium blanks & finding it fails to work well in nine out of ten cases.