Perhaps someone else will encounter the same problem as I did.

I ordered an inexpensive Universal Pos Pin Pad Stand for my cash register. Unfortunately, one of the stands was missing the rubber band for holding the terminal in place. After spending several hours creating a model in Fusion 360 (I'm new to this), I was able to get an acceptable replacement.

The print was made with Yoyi TPU plastic at a nozzle temperature of 225 degrees and 40 degrees for the first layer with the table heating turned off thereafter.

Layer height 0.15
Walls 0.35
Speed 15 mm/s
Airflow 80%

As you can see in the main photo, my Cubic i3 mega couldn't handle the bridge, so I used a hexagon 4 as a support.

I hasten to warn you that the part is made with a minimum margin for better fixation. I DO NOT RECOMMEND PLACING IT COLD!!!
Turn on the table to 70 degrees and place the part on it for 10 minutes, then quickly install it. After that, it will definitely not get lost.