I've been doing functional ABS and ASA lately and had a couple very annoying warpage spots. One was a total failure. (We won't talk about the other 3 failures that were wet out-of-the-box Bambu ASA...)
The X1C is definitely nice, but the all aluminum-and-glass side panelling has a sometimes-unwanted side effect: thermal conduction.
The aluminum sides are so conductive that they do not allow the chamber temp to go above 40C, even after a couple hours of heat soaking the build plate at 100C before starting an ABS print.
Enter: One random bath towel. doesn't look like much but just covering the three sides with a thin layer means it's good enough insulation to get the chamber up to 50C now! And the ABS parts look better than ever- every C counts.
I'm planning on swapping my acrylic panels for ACM panels and adding a layer of radiant insulation on the inside. 60 °C eliminated ASA warping. You can also run fan with ASA as your chamber temp goes up, which is kind of nice. Thankfully my panels all attach magnetically, so I can pull the top off easily when printing things like PETG.
Yeah, 60c was always my target temp. I won't swap my panels because they're formed, but I am going to try and make flexible neoprene panels ½" thick for at least 3, maybe 4 sides that go over the outside.
Mm, being able to use fan would sure make overhang prints look nicer...