

I personally have never printed TPU but from my understanding it is similar. I will say it is possible to probably get the structure of a PHA print rigid as long as a part doesn’t have super thin walls.
I haven’t made a significant amount of prints with PHA but from what I’ve seen a side that is walls/perimeters only is still very bendy while walls with some infill actually locks up into a more rigid structure better. Also, it isn’t brittle and is quite a bit tougher, and is much more temp stable (I usually see claims it softens around 110C)
There is a PHA specific subreddit (I know, I know).
Edit: apparently my stuff is specifically flex PHA. PHA properties depend on a variety of factors such as the bacteria’s diet. So other PHAs may be stiffer.
But thats like their main point. Pharmacist do know a lot about drugs. It’s important to know about negative drug interactions and a pharmacist is more likely to catch it since they most likely know all the drugs you are taking. Your GP might not know about the drugs your psychiatrist gave you or that off-label drug your dermatologist gave you because people are horrible at knowing what drugs they are on and for what purpose.