You’re forgetting that z hops are a thing. Even in a single axis the load from Eg the filament reel depends on the actual weight of the reel, and there’s almost certainly some variation in the cast aluminum frame parts (internal voids are I’m told an inevitable happening in aluminum/metal casting at scale). I assume the input shaping also would be needed on the bed slinger element as well.

As for the bambu, I’m getting voron level performance out of it, though admittedly with a much less open machine. I was using a prusa mini much of the past year but I quickly hit a lot of rigidity issues with its frame that were impossible to address without a total rebuild.

I guess for me the issue is simple: most of the plastics which I want to build stuff with (whether for engineering reasons or haptics of how they flex and feel) really require / benefit from enclosed printing. Pla is an incredibly strong material, but it can’t really handle any flex without brittle failure. And I just don’t like that.

I’m also in the process of putting together a voron v0, which I expect I’ll use even more due to sheer speed and ease of heating.

Nylon and asa and tpu are just so much more gratifying in my use cases.