Wasn't able to upload my .3mf file properly to Treatstock but he was able to convert the file to .stl & print the case for me. Great service. This was my 4th order from Welcome Back Prints.
Welcome Back Prints was quick to confirm my order and verify the details of color of plastic, etc. and explain potential issues with an awkwardly shaped file. They sent me two different versions of the print to ensure that I got the result I needed. Highly recommend!! Extremely fast to print your order and ship it and great quality prints too!