Best Upgrades for Bambu Lab A1 in 2026

The Bambu Lab A1 is already one of the best printers you can buy in 2026 right out of the box. But like any tool, there are upgrades that make it meaningfully better for specific use cases. I have been running an A1 as my primary printer for several months, and I have tested most of the popular upgrades to see which ones are actually worth the money.

Here is my honest assessment — what works, what does not, and what is a waste of money on a printer that is already very capable.

Tier 1: Highly Recommended Upgrades

These upgrades improve the A1 for virtually every user. If you are going to spend money on one or two things, start here.

AMS Lite (Automatic Material System)

Cost: ~$170 Worth it? Absolutely, if you want multi-color printing.

The AMS Lite adds automatic multi-material capability to the A1, supporting up to 4 filaments. This unlocks:

• Multi-color prints without manual filament changes
• Automatic filament switching for multi-material parts
• Backup spool capability (auto-switch when a spool runs out)

The AMS Lite is the single biggest capability upgrade available for the A1. Multi-color prints look dramatically more impressive than single-color, and automatic spool switching means you never come back to a failed print because a spool ran out overnight.

Limitation: The purge tower required for color changes wastes filament. For prints with many color changes, you can lose 20-40% of your filament to purging. The purge tower optimization in Bambu Studio helps, but it is still a consideration.

Hardened Steel Nozzle

Cost: $8-15 Worth it? Yes, if you print anything other than plain PLA.

The stock brass nozzle works fine for PLA and PETG but wears rapidly with abrasive filaments. A hardened steel nozzle lasts 10-50x longer and opens up:

• Carbon fiber filaments (CF-PLA, CF-PETG)
• Wood fill and glow-in-the-dark PLA
• Glass fiber reinforced filaments
• Metal fill filaments

Note: Hardened steel has slightly lower thermal conductivity than brass, so increase your printing temperature by 5-10°C when switching. The A1's stock hot end has plenty of thermal capacity to handle this.

Textured PEI Plate

Cost: $15-25 Worth it? Yes, especially for PETG.

The stock A1 build plate works well, but a textured PEI plate provides better adhesion for PETG (which can bond too strongly to smooth plates) and gives prints a textured bottom surface that hides imperfections.

I keep two plates: the stock smooth plate for PLA (gives a glossy bottom) and a textured PEI plate for PETG and functional prints. Swapping takes seconds.

Tier 2: Very Useful for Specific Use Cases

These upgrades are not essential for everyone but make a significant difference for specific printing scenarios.

LED Light Bar

Cost: $15-25 Worth it? Yes, for monitoring and timelapses.

The A1 does not have built-in chamber lighting. An LED light strip mounted above or around the frame dramatically improves visibility for:

• Monitoring first layers and print progress
• Camera timelapse recording
• Working on the printer in dim environments

USB-powered LED strips are the simplest option — plug into any USB power source and mount with adhesive backing. Some users 3D print custom light bar mounts that attach to the A1's frame.

According to the Bambu Lab community wiki, the most common LED mounting position is across the top of the front frame, angled down toward the build plate.

Filament Dryer

Cost: $40-60 Worth it? Yes, if you print PETG, TPU, or nylon regularly.

A filament dryer is not printer-specific, but it is one of the best investments for print quality. Wet filament causes stringing, popping, and rough surfaces — problems that no settings adjustment can fix.

The Sunlu S2 and eSun eBox are popular options that dry filament and feed it directly to the printer. I run my PETG through a dryer every time, and the difference in print quality is immediately noticeable.

Enclosure

Cost: $30-80 (third-party) or DIY Worth it? For ABS/ASA printing, yes. For PLA/PETG, usually not.

The A1 is an open-frame printer, which means ABS and ASA prints are prone to warping due to ambient temperature fluctuations. An enclosure solves this by maintaining a stable, warm environment.

Third-party fabric enclosures designed for the A1 are available from various sellers. DIY enclosures using IKEA Lack tables or custom acrylic panels are popular in the community. If you primarily print PLA and PETG, an enclosure is unnecessary and can actually cause heat creep issues with PLA.

Webcam for Remote Monitoring

Cost: $20-40 Worth it? Yes, for print farm operation and overnight prints.

The A1 has a built-in camera for timelapse and basic monitoring through the Bambu Handy app. But adding a higher-quality USB webcam or IP camera improves the view and gives you better remote monitoring capability.

For a print farm setup with multiple A1s, a dedicated camera per printer is essential for catching failures early.

Tier 3: Nice to Have

These are quality-of-life improvements that are not essential but make the experience better.

Upgraded Spool Holder

Cost: $0-15 (many are free printable designs) Worth it? If the stock holder is giving you issues.

The stock spool holder works for most spools, but some larger or wider spools do not fit well. Community-designed spool holders with bearing rollers reduce friction and support wider spool widths.

This is one of the best "print an upgrade for your printer" projects — search Printables for "Bambu A1 spool holder" to find dozens of options.

Silicone Sock Replacement

Cost: $5-8 for a multi-pack Worth it? As a maintenance item, yes.

The silicone sock around the heater block insulates it and prevents filament from sticking to the block. It wears out over time. Keeping spare silicone socks on hand ensures you can replace them immediately rather than printing with reduced thermal performance.

Custom Toolhead Accessories

Cost: Free (printed) Worth it? Varies by design.

The community has designed various toolhead accessories:

• Cable management clips
• Nozzle wipe brushes
• Part cooling duct modifications
• Camera mounts on the toolhead

Browse the Bambu Lab A1 collection on Printables for inspiration.

Filament Guide and Buffer

Cost: Free (printed) or $10-15 (PTFE tube kit) Worth it? If you experience filament feeding issues.

A smooth filament path from the spool to the extruder reduces friction and prevents tangles. Some users add a PTFE tube guide, especially when using the AMS Lite, to ensure consistent filament feeding.

Tier 4: Usually Not Worth It

These are upgrades I have tested or researched and found to be unnecessary for most A1 users.

All-Metal Hot End Upgrade

Not recommended. The A1's stock hot end handles PLA, PETG, ABS, ASA, and TPU just fine. An all-metal hot end is only needed for continuous high-temperature printing above 260°C (certain nylons, polycarbonate), and most A1 users will never print these materials.

If you need to print exotic high-temp filaments, the Bambu Lab P1S or X1C is a better choice than modifying the A1.

Direct Drive Conversion (N/A)

The A1 already has a direct drive extruder — no conversion needed. This is an advantage over older Bowden-tube designs.

Linear Rail Upgrades (N/A)

The A1 already uses a solid motion system. There are no practical linear rail upgrades that meaningfully improve print quality.

My Recommended Upgrade Order

If you are starting with a stock A1, here is the order I would upgrade:

1. Textured PEI plate ($15) — immediate quality-of-life improvement for PETG
2. LED light bar ($15-20) — makes monitoring and maintenance much easier
3. Hardened steel nozzle ($10) — opens up abrasive filaments
4. Filament dryer ($40-60) — dramatically improves PETG and hygroscopic filament quality
5. AMS Lite ($170) — multi-color and multi-material capability
6. Enclosure ($30-80) — if you want to print ABS or ASA regularly

Total for all recommended upgrades: approximately $280-360 on top of the base printer cost.

3D Printable Upgrades

Before spending money, check what you can print. Some of the most useful A1 improvements are free to download and print:

• Improved spool holder with bearings
• Cable management clips and guides
• Tool holders that attach to the frame
• Camera mounts
• Filament runout sensor mounts
• Part ejection ramps

Search 3DSearch for "Bambu A1 upgrade" or "Bambu A1 mod" to find printable improvements across all model repositories.

According to the r/BambuLab subreddit, the most popular printable mods for the A1 are spool holder upgrades, LED bar mounts, and cable management solutions.

Firmware and Software Upgrades (Free)

Do not overlook software improvements:

• Keep firmware updated. Bambu Lab regularly pushes firmware updates with speed improvements, reliability fixes, and new features.
• Use Bambu Studio's latest version. Slicer improvements often provide more print quality improvement than any hardware mod.
• Explore OrcaSlicer. An open-source slicer based on Bambu Studio with additional features and community profiles. OrcaSlicer offers more granular control for advanced users.

What I Would NOT Change

The A1 has excellent stock performance in several areas that do not need modification:

• Print speed. The A1 is already fast. Trying to push it faster typically sacrifices quality.
• Bed leveling. The auto-leveling system works well. Manual mesh leveling is unnecessary.
• Extruder. The direct drive extruder handles even flexible TPU without modification.
• Frame. The frame is rigid enough for the speeds the A1 targets. Stiffening mods add weight and complexity without measurable benefit.

Final Thoughts

The Bambu Lab A1 is a printer that works excellently out of the box, and the best upgrades enhance specific capabilities rather than fixing deficiencies. The textured PEI plate and LED light bar provide immediate daily-use improvements for under $40. The AMS Lite is a game-changer if multi-color printing interests you. And a hardened steel nozzle plus filament dryer prepare the printer for any material you want to throw at it.

Avoid upgrading for the sake of upgrading. The A1 does not need to be modified to produce excellent prints. Spend your budget on the upgrades that match your specific printing needs, and invest the rest in good filament — that is where the real print quality difference comes from.