I always used heavy poster board and lot's of glue. Text book shows you use a piece of sacrificial wood on the faceplate to run the screws into. When you finish turning take a chisel and separate the two pieces while still on the lathe. After it's stopped running of course.
As long as others are giving their credentials.
I am a master craftsmen and engineer of 30 plus year with an IQ of 170 (Which I THOROUGHLY squandered chasing skirt and building frivolous Henry the 8th genre furniture might I add
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I apprenticed at the age of 18 under the tutelage of a 92 year old Englishman that had learned his trade from another 90 year old master when he was a youth. So I build 14th century Gothic Furniture for 32 years and have carefully and painstakingly studied the masters which shoulders I stand on.
As a hobby and let me just say HOBBY not a business I have furnished homes of Actors, Rock Stars and Shoe manufacturing moguls. Alice Cooper, Phil and Penelope Knight aka. NIKE etc.......
I have links to a few of my recent projects.