0.1 mm layer thickness is standard for an entry level machine. But in XY it is hard to create lines more narrow than the nozzle diameter. Typically 0.4mm, down

0.1 mm layer thickness is standard for an entry level machine. But in XY it is hard to create lines more narrow than the nozzle diameter. Typically 0.4mm, down to 0.2mm is available. There will also be visible lines still. And optically clear prints are ver challenging with FDM. No idea if it would be good enough for your usecase.. Visit a makerspace or use 3dhubs to give it a try?