PLA is also susceptible to heat. Leave a PLA model out in your car with the windows rolled up in the summertime (especially here in Arizona where you can easily

PLA is also susceptible to heat. Leave a PLA model out in your car with the windows rolled up in the summertime (especially here in Arizona where you can easily cook a meal in your car!) - and you'll come back to a model in not-so-good shape (it won't melt, but it will deform and sag).