This is a drop in replacement for the original cup holder. You will need a flat screw driver to pop off the top plate of the holder. Use care so as to not break it. Remove the 3 screws and replace with the new. I printed this with PC and the liner with PLA. We live in Phoenix where the inside of the RV often reaches 120+ degrees and it has been fine all summer. I am not sure what kind of interest there is as it is a very niche item. I had not planned on sharing, but who knows. I will try to add a better photo.
I purposely made the inside as large as possible. Then you can create or use my tapered sleeve for the Stanley cup. It fits perfectly. We have used them all summer and love them. This way, if you change cup designs or dimensions, just print another sleeve and you are in business.
Update: I found some photos. The original is with the Stanley cup laying over almost falling out. I made the “sleeve” out of scrap PLA. That explains the multi colors. But now our cups fit nice and stand straight up. Enjoy
The author marked this model as their own original creation.