Jo,
What have you for a rotary table for your little beast? As you can see, the Sherline is bulky in the Z dimension. I made an adapter to put the RT directly in the machine.
Their little chuck is OK if you allow Tommy bars for closing, I hate them.
And, I have metric Tee nuts to Imperial studs in the table slots (I know how you love studs).
Chuck, have you ever looked at them under a loupe? Better take your seasick pills first.
CS I think it would be soothing for you to show us your F3? Yes? With all of the goodies, please.
Mosey