

Curving flat object
Currently wanting to print a replacement face seal for my VR, no replacements exist for this so I want to print it out of 65A TPU Air. I tried printing it flat but it curves too much and makes a weird kink in the part that messes up. The red line is for reference of what you are looking at.
I just want to move the center point of the sketch 1 inch in and leave the corners as is but can't figure out how I would go about doing it.