3D Printing Service JLC3DP
If you don't own a 3D Printer, you can order high quality prints by the dollar using JLC3DP
https://jlc3dp.com/3d-printing-quote
Upload your STL files with the following print settings
Do note that if you are printing for a example, a lens mount, you may need to mirror it in blender, or any slicer, to get both a left and right STL and upload them separate. Do not upload them combined
Choose a cheaper shipping option, for me this is global standard direct line
In the likely event you get an email or alert from JLC asking for consent to print as the STL has thin walls, you can agree to the print without worry.