Best Accessories
Gear that's actually worth buying, with the catches spelled out.
Essentials
SUNLU FilaDryer S2
Heated filament dryer. Dries while printing. Rated for 70 °C by SUNLU: PLA, PETG and TPU; nylon only with long runs.
SUNLU Filament Dryer S1 Plus (budget)
SUNLU's budget single-spool dryer, 35–55 °C: enough to rescue damp PLA, too cool for PETG and TPU by Bambu's numbers.
SUNLU FilaDryer S4
Dries four spools at once: the step up from the S2 for a full AMS or AMS lite (the AMS 2 Pro and AMS HT dry on their own). Rated for 70 °C by SUNLU: PLA, PETG and TPU; nylon only with long runs.
TEQStone Bed Adhesive Glue Stick 6-Pack
Bed adhesion solution. Better than glue stick for PETG and engineering materials.
E3D ObXidian 0.6mm High Flow (P1P/P1S)
Hardened nozzle for CF/GF filament. Bambu advises against stainless steel and brass nozzles for these; they wear out quickly.
ZDBB Silicone Grease
Silicone grease for the Z lead screws. A tube lasts years. Don't use on carbon rods.
LEVOIT Core 300-P Air Purifier
Room purifier with a HEPA-grade filter, AHAM VERIFIDE at 143 CFM CADR. A built-in H12 HEPA stage is only on the X1E, X2D and the H2 series. Not tested by us.
99% Isopropyl Alcohol
For wiping carbon rods, build plates and the nozzle area; Bambu washes textured PEI with dish soap instead, and BIQU rules out alcohol on the CryoGrip Frostbite. Flammable: only with the printer off and the hotend and bed cold.
Microfiber Cloths 24-pack
Lint-free cloths for IPA wipes on rods and plates. Bambu's maintenance lists call for a clean cloth; these are cheap enough to toss when greasy.
SanDisk High Endurance microSD
For printers with a microSD slot (A1, A1 mini, P1 and X1 series): timelapses and print files. Format it in the printer, Bambu supports FAT32 only. The P2S, X2D and H2 series take a USB drive instead.
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Build Plates
Double-sided PEI plates compared, size compatibility per printer and when to use glue: our build plate guide for Bambu printers.
BIQU PyroGrip PEI Plate 257x257
Third-party textured PEI. Same mount as the stock plate. Get a spare for swapping; on the P2S and X2D, BIQU says to turn off build plate detection.
UniTak3D Double-Sided PEI 257x257
Smooth one side, textured the other. Two surfaces in one plate.
BIQU CryoGrip Frostbite
Very grippy cold plate for PLA and PETG only (we have not tested it). Per BIQU: bed at 30–50 °C for PLA and 50–70 °C for PETG, no TPU, water and soap only, no alcohol; fits A1, P1, X1, P2S and X2D (turn off build plate detection on the P2S and X2D), not the A1 mini or H2 series.
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Tools
Brass Brush Set
Optional: no Bambu procedure we found brushes the nozzle. If you do, take the sock off, brush lightly while warm rather than hot, and keep the bristles off the heater wires.
Wera Hex-Plus L-Key Set
Quality hex keys. Ball-end works at angles. Better than included tools.
Kynup Digital Caliper 6in
Measure filament and check print dimensions. Per Kynup: 0.01 mm resolution, a large display and a splash-proof screen.
WOLFBOX Electric Air Duster
Rechargeable replacement for cans of compressed air. Bambu's wiki blows out the extruder gear and the fans with compressed air: printer off, fan blades held in place.
Heat-Resistant Gloves
Bambu's A1 tool list includes heat-resistant gloves. For briefly handling a warm hotend or part; most of Bambu's procedures still want a cold nozzle.
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Storage
Drying temperatures, vacuum storage and when the AMS 2 Pro is enough: our filament dryer guide for Bambu printers.
SUNLU FilaDryer S2
Heated filament dryer. Dries while printing. Rated for 70 °C by SUNLU: PLA, PETG and TPU; nylon only with long runs.
Creality Filament Vacuum Storage Kit
Vacuum-seal spools for long-term storage. Essential if you don't print daily.
Orange Silica Beads 5.5 lb
Reusable orange beads for the AMS. Bake them back to orange instead of rebuying. Cobalt-free indicator.
Mini Hygrometer 2-pack
Fits the round 46 mm slot in popular AMS dry-pod prints, so you measure humidity instead of guessing from bead color. At about ±5% RH it shows the trend, not a lab value.
MarsWork Reusable Spools
Plastic spools for Bambu refills (about 82 mm core per the listing). No RFID tag, so set the filament in the AMS by hand; the AMS fit is the seller's claim, not Bambu's.
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Finishing
Starbond Thin CA Glue Kit
Thin CA that wicks into seams. Bambu calls super glue ideal for PLA and recommends two-part epoxy for PETG and ABS.
INTARSIO Print Removal Scraper Kit
Three steel scrapers plus a plastic razor scraper with 10 spare blades, per the listing. On textured PEI, use the plastic blade first and steel only when it is not enough.
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Upgrades
Capricorn PTFE Tube XS
Capricorn XS, 1.9 mm ID. Narrower than Bambu's stock tubes (2.0 mm inside the AMS and on the X1/P1, 2.5 mm on the A1, A1 mini, A2L, P2S, X2D, H2C, H2D and H2S); Bambu advises against a smaller ID because it adds friction. In our own printers it has still worked better than the stock tube, which is why we keep recommending it; if feeding gets worse, go back to the stock size.
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