Hi @Elise ,
I have no particular application in mind, just exploring some possibilities in manufacturing, not aesthetics.
So I'm indeed looking from a structural point of view (as I have a background in industrial design).
But thanks for the info, I'll look into it!
Just a quick idea for your research about creating structures could be this, based on the clip above:
I learned mycelium needs oxygen from a workshop I attended.
Maybe you could extrude a hollow tube inside a gel medium, where the extruded medium could be a paste of hemp fibers and mycelium. The technique could be similar as the videoclip above, so that the gel provides suspension and just enough resistance to battle gravity and prevent oxygen from bubbleing to the surface.
The extruder needle injects air in the center. If the needle can follow a 3D path without the tube collapsing, a mycelium could have an environment where it can grow into a free form 3D structure? If there is not a sufficient amount of trapped air, you could extrude the tube up to the surface of the suspending gel. In that way you have a kind of vent that connects to the air outside the suspension gel and there is a continous acces to oxygen inside the mold.
A needle might be the wrong word, but look a it as it would extrude eg: a 15mm outer diameter tube.
I did not give it some thought or research yet, so there's probably loads of limitations, but who knows