Jewelery often used method.
Mix some shellac and methylated spirit.
Place on sacrificial surface under pressure with a weight and allow to dry.
When machining finished soak in methylated spirit or just knock it off because fairly brittle.
Heat from machining can release super glue when you least expect it.
Another strange effect of super glue is it goes liquid when ultrasonic vibration is present. I guess due to heating effect. If you have an ultrasonic welder, then a few seconds can release super glued items.
Super X3. 3600rpm. Sheridan 6"x24" Lathe + more. Three ways to fix things: The right way, the other way, and maybe your way, which is possibly a faster wrong way.