after presenting my 3D-printed adapters on an German astronomy board someone pointed to the low heat-tolerance of the standard-PLA and the resulting risk of mechanical instability…
Afterwards an interesting discussion started and another member (a polymer-engineer) introduced the idea of tempering/annealing the PLA-printouts.
While my first thought was to get PETG for printing to get something more heat-tolerant I stumbled about a filament called GreenTEC from the Austrian producer extrudr who is quite renown for producing high-quality filaments.
I managed to get the GreenTEC very fast and already printed my adapter with the normal PLA-settings I use (215°C/60°C) and it came out as perfect as PLA.
The GreenTEC PRO is already ordered and dispatched, but I won’t be able to print it before next week (I’m a few days away for educational purposes ).
So if you’re up to printing mechanical reliable parts you may consider the annealing process or some kind of special filament…