Buy the Bambu Lab P1S for nylon when nylon is one recurring branch inside a broader PLA, PETG, ABS, and ASA workload. Buy the Prusa CORE One or current CORE One+ when repeat nylon parts make active chamber control, repair access, and deliberate process ownership more important than the easiest day-one ecosystem.
Neither printer makes nylon casual. Drying, sealed storage, ventilation, the exact grade, nozzle wear, bed preparation, and a representative-part qualification still decide whether the purchase works. If only one or two real jobs need nylon, price a service before buying either machine around the exception.
The answer in 30 seconds
Choose P1S if: you want the more mainstream enclosed Bambu workflow, its 256 x 256 x 256 mm envelope fits your jobs, and unfilled nylon is a qualified side lane rather than the printer's whole reason to exist.
Choose CORE One / CORE One+ if: repeat nylon work benefits from the current Prusa platform's listed 55 C heated chamber and you value a service-minded ownership model enough to maintain and requalify the process.
Pause if: you have not identified the exact nylon, drying condition, wear-hardware requirement, ventilation plan, and recurring part that will repay the complete working cell.
Disclosure: GoodPrints may earn a commission from qualifying links on this page. This comparison uses current manufacturer-published information and current product-listing checks; it does not claim hands-on testing. Specifications, bundles, profiles, and availability can change.
Quick comparison for nylon buyers
| Decision point | Bambu Lab P1S | Prusa CORE One / current CORE One+ |
|---|---|---|
| Best role | Lower-friction mixed-material enclosed printer with a qualified nylon lane | Service-minded enclosed platform for recurring harder-material work |
| Listed build volume | 256 x 256 x 256 mm | 250 x 220 x 270 mm on the current CORE One+ route |
| Chamber strategy | Enclosed; the current product page does not list an active chamber heater | Current CORE One+ page lists a heated chamber up to 55 C |
| Hotend checkpoint | Current page lists an included 0.4 mm stainless-steel nozzle and 300 C maximum | Current page lists 290 C maximum; verify exact nozzle and generation |
| Filled nylon | Carbon- and glass-filled grades can be abrasive. Match the exact nozzle, extruder path, profile, and filament-maker guidance before printing. | |
| Shared requirement | Dry filament, controlled storage, ventilation, a released profile, and repeated accepted parts | |
Specifications were checked against the current Bambu Lab P1S product page and Prusa CORE One+ product page on August 2, 2026. Confirm the exact generation, installed hardware, regional bundle, firmware, and material profile before buying.
Current-model note: search says CORE One, retail now says CORE One+
Prusa's established CORE One product route now presents the CORE One+. That matters when comparing a new machine with an original CORE One, used unit, old review, or remaining inventory. The current listing publishes a 250 x 220 x 270 mm build volume, a heated chamber up to 55 C, and a 290 C maximum nozzle temperature, but generation-specific hardware and upgrade state still need to be checked.
Do not silently copy every CORE One+ statement onto an original CORE One. Confirm the serial-generation, nozzle, filtration setup, firmware, profiles, warranty, and installed upgrades. On the P1S side, confirm the exact hotend and extruder parts actually installed instead of assuming every used or modified machine still matches the stock listing.
Where the Bambu Lab P1S wins
The mixed-material queue is still the real reason to buy
P1S is the cleaner recommendation when most jobs are PLA, PETG, ABS, or ASA and nylon appears often enough to qualify but not often enough to define the entire machine. Its broader value is an established enclosed Bambu workflow, not a promise that one enclosure solves every nylon grade.
Use the dedicated P1S nylon buyer guide to separate unfilled nylon from abrasive filled grades and to decide whether P1S hardware fits the exact spool. If nylon is only shorthand for “tougher than PLA,” compare whether nylon is worth it for the part before changing printers.
Its nominal X-Y room is larger
P1S lists 256 x 256 mm in X-Y, while the current CORE One+ lists 250 x 220 mm. That is roughly 19% more nominal bed area for P1S, although CORE One+ is 14 mm taller in Z. Oriented-part fit, brim, supports, clips, and safe clearance matter more than headline volume, so check real files rather than buying from liters alone.
Lower friction can beat a more ambitious chamber story
If accepted everyday output and operator familiarity are the recurring constraints, the simpler ecosystem choice can return more value than a printer selected around rare difficult jobs. P1S still needs a nylon qualification; it just does not require nylon to be the purchase's central story.
Where the Prusa CORE One / CORE One+ wins
The current chamber claim is explicit
Prusa's current page lists active chamber control up to 55 C and explicitly includes Nylon (PA) in its material guidance. That makes the buying case easier to connect to repeated warping-sensitive parts than the P1S's enclosure-only listing. It is not blanket approval for every PA blend, geometry, or filled composite.
Serviceability has value after the first good sample
A real nylon process eventually involves wear parts, surface replacement, sensor checks, profile revisions, and requalification after maintenance. Buyers who value documentation, repair access, and owning those changes may prefer the Prusa path even if both machines can produce the first acceptable part.
Read the CORE One nylon buyer guide before treating the chamber number as the whole decision. Use the broad P1S versus CORE One comparison when nylon is not actually the deciding workload.
Nylon requirements neither printer removes
Drying and storage are separate jobs
A sealed box slows moisture pickup; it does not automatically restore a wet spool. Nylon can absorb enough moisture to create stringing, surface defects, inconsistent extrusion, and unreliable mechanical results. Follow the filament maker's drying limit and use the nylon dryer-versus-storage guide to build the process before blaming the printer.
Filled nylon changes the hardware check
The stock P1S listing names a stainless-steel nozzle. Abrasive carbon- or glass-filled nylon can require wear-resistant hardware, and a high temperature limit is not the same as abrasion readiness. Prusa's current material guidance also directs composite users to the right nozzle. Check the nylon-CF hardened-nozzle decision for the exact filled-grade branch.
Ventilation and qualification still belong in the budget
Follow the resin or filament manufacturer's safety data and printer guidance for the exact material. An enclosure or filter is not permission to ignore ventilation. Qualify the same representative part for dimensional stability, layer bonding, surface condition, support removal, scrap, operator intervention, and repeatability after storage and redrying.
Run a ten-job proof before choosing
- List the last ten real parts you printed, outsourced, delayed, or redesigned; do not count ideas.
- Record why each surviving part needs nylon instead of PETG, ASA, PC, or another material.
- Name the exact unfilled or filled grade, spool size, nozzle requirement, drying condition, and ventilation plan.
- Check oriented fit with brim, supports, and safe clearance against each machine's envelope.
- Count failures caused by moisture, warping, wear, profile drift, and maintenance separately.
- Price the complete cell: printer, nozzle or hotend, dryer, sealed storage, build surface, ventilation, failed qualification parts, and operator time.
- Compare that total with outside production for the same accepted parts and lead time.
If only one or two jobs survive, neither printer has earned a nylon-first purchase. If several repeat jobs fail on chamber stability or maintenance control, CORE One / CORE One+ has the stronger case. If the queue remains mixed and the nylon branch qualifies without defining ownership, P1S is usually the proportionate choice.
Three buyer scenarios
Mostly PETG fixtures with occasional unfilled nylon
Choose P1S when the broader enclosed workflow is the real purchase reason. Prove the exact nylon job and keep drying discipline separate from the printer decision.
Repeat nylon or nylon-CF production with an assigned operator
Lean toward CORE One / CORE One+ when the exact generation, 55 C chamber lane, wear hardware, maintenance access, and release process all match the job. The operator and qualification record matter as much as the machine.
A few critical nylon parts each quarter
Price finished parts before buying either machine around the exception. The printer-versus-service guide is the honest next route when output matters more than owning the process.
Final recommendation
Buy the Bambu Lab P1S when nylon is a real but secondary lane inside a broader enclosed mixed-material queue and its larger nominal X-Y envelope plus Bambu workflow solve more daily jobs.
Buy the Prusa CORE One / current CORE One+ when repeat nylon work makes the explicitly heated chamber and service-minded ownership model worth the different envelope and process commitment.
Buy neither for nylon yet when you cannot name recurring parts, the exact grade, the drying and wear-hardware plan, and the savings over outside production.
Common questions
Does P1S have an actively heated chamber?
The current Bambu P1S page describes an enclosed printer but does not list an active chamber heater. Do not treat enclosure and active chamber heating as interchangeable claims.
Is CORE One+ the same as the original CORE One?
Do not assume so. Prusa's current retail route presents CORE One+, while older and used machines may be original CORE One units with different installed hardware or upgrade state.
Which printer has more build room?
P1S lists 256 x 256 x 256 mm. Current CORE One+ lists 250 x 220 x 270 mm. P1S has more nominal X-Y area; CORE One+ has 14 mm more listed Z height. Check the oriented part and process clearances.
Does nylon-CF change the recommendation?
It can. Abrasive filler makes nozzle and feed-path readiness a first-order requirement. Verify the exact hardware and filament-maker guidance instead of extending an unfilled-nylon verdict to every composite.