Quick-fix for the bottom part (frame) of double-hung windows

After reaching out to several window companies, everyone said they didn’t have a good solution and usually just put a "random" piece of plastic there. So, I figured I could do better than "random." Otherwise, we’d be looking at replacing the entire window just because a 1mm-thick plastic piece in this relatively simple and almost functionless part had cracked.

Its only function is to press down the seal when the window is closed.
I printed it in PETG. I wouldn’t even attempt it with PLA.

I’ve attached four variations and tried to include the key dimensions. However, this kind of part has so many dimensions that it might be better to start with the first one... and then try the second...

If you’re dealing with a similar problem, I hope this helps.

STEP, XT, and Shapr files are also included, so if you just need a tiny tweak to make it perfect, you can try modifying it if you have the necessary skills (and measuring tools 😬).