Bambu printers work well out of the box, so most “upgrades” are optional. These are the ones that actually earn their place, and a couple that are not worth the money.
Usually worth it
- Hardened steel or ObXidian nozzle if you print any carbon fiber, glass fiber, or glow filament. Brass wears out fast on abrasives.
- A second build plate (textured PEI or smooth). Swapping plates beats waiting for one to cool, and different surfaces suit different filaments.
- A filament dryer if you run PETG, TPU, PA, or PC. Wet filament is behind more print failures than people think.
- Extra AMS or AMS lite only if you genuinely switch colors or materials often.
Usually not worth it
- Third-party “cooling mods” on machines that already cool well (A1, P1S, X-series).
- Aftermarket springs or bed clips. The stock bed leveling is good.
What have you added that actually made a difference? Post it with the printer model. Our tested picks: Accessories.