FLSun provides a model for an external camera bracket to hold the provided camera outside of the chamber as an alternative to the inside chamber mount that clips into the frame.  However, they've pre-sliced the model in PLA and do not provide the STLs anywhere on their website or WIKI page that I could find.

I wanted to do mine in PETG (better durability with the friction mount rotation teeth on the camera head component) so I wrote Support and they were kind enough to send the files to me - posted here.  I printed all 4 parts without supports in an obvious orientation for each to avoid overhang/bridging challenges. 3 out of 4 will need to be repositioned.  The names are in Mandarin so you'll need to load them into a slicer to see which is what part and pick your orientation. (unless you read Mandarin)

They printed very well and the tolerances upon assembly are tight - the camera body rotates up and down with some force and holds the selected position well.

I printed them on the FLSun T1 Pro itself, .4 nozzle, .2 layers and your favorite filament temperature settings.  The T1 is a speed demon, I think the set printed in about 90 minutes with good quality, my other printers would have taken over twice as long.