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)
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.
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.