Can't Prep CAD File For Printing.

[AnthonyKwet]

Hi all,

I have been trying to get a 3D model printed for some time now except for the fact that every printer returns a few errors, such as 'inverted faces.' and I simply can't figure out how to fix this issue and get it to the printers successfully. I am using Blender for mac (I am a CAD noob so go easy) and the tutorials I have seen say to select everything, and use the feature called "Backface Culling" yet that hasn't been of much help. If someone could take a look at the file for me or give me some advice on how to prep it for printing I would appreciate it. Thanks! (PS. The file uploaded will not load so I can't upload the .STL file for the time being, sorry.)

image.jpg

I do not know if anyone can diagnose this problem just from the image that the printers sent me. Since the uploader won't work for me, if anyone can take a look at this for me I can email it without a problem.