For ACM - like aluminium honeycomb?

ACM is more of a sandwich. Aluminum, plastic, aluminum.

I have a boring old klicky. It works very for me 🤷

I personally am pretty happy with my 2.4, although I would suggest skipping the cable chains and going to an umbilical. I went the nitehawk route. If you’re going to be printing ASA or ABS add an under bed carbon filter and bedfans. I would also suggest skipping to ACM panels if you plan on big ASA/ABS prints.

If you dig through my comments you can see me talking about it. Mechanical bed leveling, that actually squares the gantary to the bed, and Z calibration make for very consistent first layers.

$1,200 is Voron and RatRig territory. Vorons cap out at 350 mm³ for build volume and 500mm³ rat rigs are $1,550. I agree that plenty of folks are probably over buy on printers, but if you want this kind of build volume the price seems reasonable - especially for a printer that ships assembled. Personally, I went the Voron route and if I wanted a larger printer I would probably either just make my 350mm taller or go the RatRig route.

That said, high velocity on a large format printer isn’t that useful for big prints IMO. You’re probably going be running a bigger nozzle and laying down wide/tall extrusions, which means you’re probably going to be limited by how fast your extruder can melt plastic. That’s the case on my Voron with a Rapido HF with “only” a 0.6mm nozzle, 0.8mm extrusion widths, and 0.3mm layer heights.

These units are somewhat silly IMO. It all comes down to volumetric flow. Big nozzle + thick extrusions + thick layers would probably mean needing to print slower than that speed due to the ability of a hot end to melt the filament.

/ someone who has been mm^3/s constrained for a while now

I had no idea this was even going on, so that’s a potential plus.

Stratasys filed the two lawsuits against Bambu Lab in the Eastern District of Texas, Marshall Division, in August 2024. The company claims that Bambu Lab’s X1C, X1E, P1S, P1P, A1, and A1 mini 3D printers violate ten of its patents. These patents cover common 3D printing features, including purge towers, heated build plates, tool head force detection, and networking capabilities.

I had heard that Stratasys was a bit of a patent troll, but some of those claims are news to me.