Quote Originally Posted by Doddy View Post
As an observation about - particularly PLA - and "sunlight", albeit here in the UK, I've read about PLA and the low temperature resilience, also its biodegradable nature. Three years ago, I printed in PLA a button stack - a barrel setting for a captive M4 nut to engage with a greenhouse tee-bolt (i.e. hot, humid environment) and an extended lug with a hole to take twine - so that many of these could be set into the framework of a greenhouse to suspend guide wires, etc, to support tomato and other heavy set plants. At the same time, this being an allotment setting, we were required to present plot numbers on gates, etc. Again, PLA plastic, printed numeric plates set onto gate posts. So, despite all the concerns about PLA, these have survived expose direct to the elements and in hot environments (admittedly not Spain) PLA has been surprisingly robust.
I agree, a lot people who report problems with PLA and its thermal performance seem to be over the pond in the states - phone holders printed for their cars melting in the summer heat etc. I use PLA for a lot of stuff, all of the components on my printer are done in PETG simply because i wanted it all the same colour, and parts on the Extruder Carriage needed to be PETG to survive the heat. I also bought a roll of "Reflect-A-Gold" tape from the states, off the top of my head it can reflect 80% of the heat upto ~500c. Good stuff and seems to work well, my old Blower Fan Shroud used to touch against the hotend, and this tape stopped it melting for well over a year.

Alex