Thanks for your reply You’re right, a fixed/floating ballscrew is a bit overkill… Or rather, a ballscrew at all is a bit overkill! But I need to order a ballscrew for my lathe so the two extras for the TAZ only add about the same cost as one misumi leadscrew/acme nut!
I’ve also ordered a bunch of lm10uu bearings and will eventually replace the soft stainless rods with hardened steel ones. I got a really great deal on the TAZ3 so I figure it’s worth spending a bit more money and attempting to improve a few things. I’m a bit spoiled by the Mini Kossel I had until a few days ago, the print quality on that little thing was just incredible, right out of the “box” (well… after a week or two of putting it together, that is). I’m sure the TAZ is capable of great prints, but in the few experiments I’ve done so far, I’ve felt a bit disappointed. I’m sure a lot of it comes down to ABS vs PLA as well, or maybe I was just incredibly lucky hitting the perfect settings on the mini kossel right away.