David, I'm glad you were finally able to get those side pieces made. When I first started 3D printing I used PLA all the time but after after a while realized that material is great but for strength and longevity I moved to PETG by Solutech.
Time and temperature and possibly even sunlight can affect PLA.
I run 80 deg for bed and 220 for nozzle. Just a thought, have run my machine for over 1700 hours and many different parts.
You have done nice work for so little run time, I can see you are going to have a rewarding future in 3D printing.
Ray