What kind of parts are you going to produce. If they're fairly large and you can accept the inevitable layer lines produced by a string printer (AKA Filament Deposition Machine = FDM) then go with a good FDM. They have huge price ranges, but you need something that would reproduce at 100 microns all day long.
However, if you're thinking about detail parts for 1:48, then you'll need to get into resin printing. It's an entirely different concept with differing issues. They are now available for less than $300 that produce parts in 10 to 50 micron ranges. I've been printing at 40 microns and it's quite satisfactory to reproduce ridiculously small details. That said, it's a **** of a learning curve and it throws you curves along the way.
Here's a primer I wrote on resin printing that fills in some (not all) the blanks. Forgive me… the pictures are not imbedded in the document since it was sent to our modeling club for publication in their newsletter. You'll have to be patient and match up the images with the text.