Hi.
I’ve never used a 3D printer. Do you think it would be possible to make a lever extension similar to the KH ones? What would be the durability of the crafted part?
Yes, it would be possible, if you find someone who makes a 3d model of one. I’d expect the durability to be similar to the KH plastic ones, depending on the material you choose.
Nice
Actually they are pretty solid.
It is possible but I do not think a “plasticy” one will do. Wait a couple more years as they are working on a metal version. There are few metal 3d printers out there but kind of expensive.
I 3d printed an ipad tablet stand from Thingiverse which came out pretty good.
you should contact “Thierry 92” on the french forum
He built one using a 3D printer and it’s pretty durable.
Awesome!
My 24" Muni already contains one metal printed part 
You can use 80% hollow plastic till 3D printed titanium.
So corresponding, the durability will bad or perfect - or in between.
Myself I considered 3D printed titanium paths (joints) when I design my titanium frame for pair unicycling. But choosed for CNC’ed solution, but such that the disadvantage of CNC was eliminated to the very root.
What I would consider in your case: print something around an inforcement.
Would that be Thierry Bouche, one of the pioneers of Mountain Unicycling?
no: this Thierry is a beginner with lot of courage and will who built components for a cheap 24" muni (he has a 3D printer)
we are encouraging him! (92 is a code for a “département” - administrative part of France- Here it’s South-West of Paris )