You should look into STL printing if you are worried about resolution. Laser printing with resin is quite nice, I've got parts so smooth you can barely see the lines. Shapeways although pretty expensive mostly does STL printing, though I like 3D Hubs for the ability to get something from a local maker and you can get communication with them on what you want and/or need. 3D Hubs also offers a design service if I remember correctly, I think that depends on the shop though, I could be wrong there.