Need Help With Prints

[Kenpilot]

Newbie here to 3D printing. I have a Crealty Ender 3 V2 and I'm trying to print a few files that someone else had created and shared. I'm getting a lot of stringing and birds nest and I'm sure it has to do with the angles and/or horizontal parts of the print that don't have support. I tried printing with auto supports from the bed only and still had issues, not to mention the supports being a pain to remove from the print. Can someone please take a look at these files and maybe give me some pointers or settings or something to help me get these files to print correctly? I've attached some of the print files. Thanks in advance!

[Gambo]

The only way these files could be printed on a simple FDM printer is with the "flat" side down and there might be problems with the grooves on what is now the under side which might need some post print work on them. Also the one part (File Type: stlHUD Frame L Lower.stl (45.2 KB, 1 views) I sliced and offered up to the print system is at or just over the max size that can be printed on an ender 3 so would need to be in 2 parts.

[Gambo]

CORRECTION I have just printed the out line and it can JUST be fitted diagonally on an Ender 3 pro bed !

[Kenpilot]

CORRECTION I have just printed the out line and it can JUST be fitted diagonally on an Ender 3 pro bed !

Thanks so much for the replies! I will try and lay them flat and see how it goes!