If you run a Bambu Lab printer and you’re tired of paying full price for Bambu’s own PLA Basic, MarsWorks is worth a serious look. I tested both the refill and the complete spool versions on a P1S using the default Bambu PLA Basic profile, and the results were indistinguishable from the original. Same quality, potentially lower price, and a spool design that actually improves on Bambu’s.
Spool & First Impressions
MarsWorks PLA comes in two formats: a refill roll and a complete spool, and both are well thought out.
The refill fits perfectly into Bambu’s reusable spool with no fuss. The complete spool is reusable too, and it has a couple of smart design touches that Bambu’s own spool lacks. Velcro strips let you secure the filament end when swapping or storing, and a clip-based security lock prevents the spool from accidentally coming apart or releasing the refill mid-use. Small details, but the kind that matter when you’re doing frequent filament swaps.
Winding on both was flawless. No loose coils, no tangles, and the refill roll arrived in good condition out of the bag.
[Photos 1 and 2: MarsWorks refill roll and complete spool side by side. Photos 3 and 4: Packaging MarWorks (left) vs Bambulab (right)]
Dialing It In
Nothing to dial in. I loaded both the White refill and the Yellow complete spool on a Bambu P1S, selected the standard PLA Basic profile, and printed. No adjustments, no first-layer tweaks, no temperature hunting. It just worked.
No RFID Tag — Here’s What to Do
MarsWorks spools don’t include an RFID tag, which means your Bambu AMS won’t auto-identify the filament. The fix is simple: reuse a tag from an empty Bambu spool.
Here’s how:
- Pull the RFID sticker off an empty Bambu PLA Basic spool (it peels off cleanly).
- Stick it onto your MarsWorks spool in the same position.
- Load it into the AMS as normal.
The AMS reads it without issue, and because MarsWorks PLA is formulated to match Bambu’s PLA Basic spec, the settings it pulls from the tag are accurate. I suspect MarsWorks may actually be manufactured by the same OEM as Bambu’s filament — I can’t confirm that, but the behavior in practice is exactly what you’d expect if that were true.
Want to see the full spool install in action? I covered it in this Short:
And here’s the refill install on a Bambu reusable spool:
Print Results
Print quality matched Bambu’s own PLA Basic across the board. Surface finish was clean, dimensional accuracy was spot on, and there were zero defects on either color. The White was a color-accurate match to Bambu’s White, and the Yellow came out consistent and vibrant.
I printed a Nest Mini socket mount as a real-world functional test, and it came out perfectly:
📷 [Photo: Close-up surface finish — White refill print]
[Photo: Close-up surface finish — White refill print]
Best Use Cases
MarsWorks PLA Basic is a drop-in replacement for Bambu’s own filament. If you print mostly functional parts, everyday objects, or anything where you’d normally reach for PLA Basic, this works exactly the same way. It’s especially practical if you’re printing in volume and want to keep costs down without changing your workflow at all.
Pricing & Verdict
Here’s where it gets regional, so pay attention to your local Amazon pricing before ordering.
Bambu’s own PLA Basic runs €22.99 for a refill and €25.99 for a complete spool in the EU. MarsWorks on Amazon.de comes in at €13.99 for a refill and €19.99 to €21.99 for a spool depending on color — that’s a clear win. On Amazon.nl the gap is smaller: €17.99 for a refill and €23.99 to €25.99 for a spool, which is closer to Bambu’s pricing and less compelling. In the US, prices range from $14 to $23 depending on color and format, so again, check before you buy.
The verdict is simple: if the price is right on your local Amazon, just get it. The quality is there, the AMS compatibility is solid with a reused RFID tag, and the spool design is actually better than Bambu’s. When the price is at or above Bambu’s, stick with the original. But when it’s cheaper — and it often is — MarsWorks is the easy choice.
Where to Buy
Check current pricing on Amazon and grab it if the deal is there:
👉  MarsWorks PLA Filament — Amazon (Affiliate link)
