Custom Filament Profiles: PLA, PETG & TPU on A1, P1P & X1C
Your slicer's stock presets are calibrated for the OEM's own filament. Third-party spools — including Forgely Performance PLA — will underperform until you clone a base profile and dial in temperature, flow, pressure advance, and speed. This guide walks through the exact settings we run, per printer and per material, so you can build the profile yourself in under a minute.
Fastest path: in your slicer, right-click the stock PLA Basic profile → Clone, rename to Forgely Performance PLA, set nozzle 215°C, bed 60°C, flow ratio 0.98, pressure advance 0.02, max volumetric 18 mm³/s. Save. Assign to your A1, P1P, or X1C profile.
Why Filament Profiles Matter
The OEM's desktop slicer is forked from PrusaSlicer (which itself came from Slic3r), with tight integration to the AMS, cloud, and printer telemetry. If you own one of these machines, it's the slicer of record.
The stock Generic PLA profile is a lowest-common-denominator envelope. It won't ruin a print, but it won't get you the layer adhesion, surface finish, or corner sharpness a properly calibrated profile does. A filament profile is five knobs working together: temperature, cooling, flow, pressure advance, and max volumetric speed, plus retraction. All five need to match the spool in the AMS, not the spool the OEM tested on.
For context on what different PLA formulations actually want, see our best PLA filament 2026 tested roundup.
Anatomy of a Filament Profile
Open any filament profile and three tabs matter:
- Base — nozzle temperature, bed temperature, filament diameter (1.75 mm for everything here), and density.
- Cooling — part fan percentage, minimum layer time before the fan spins up, and on X1C, the aux fan behavior.
- Setting Overrides — flow ratio, pressure advance, max volumetric speed, retraction length, and per-material speed caps.
Profiles live on disk under your user config folder — %APPDATA% on Windows, ~/Library/Application Support on macOS, ~/.config on Linux.
Never edit stock profiles directly. Right-click, Clone, rename, then edit the clone. Slicer updates re-sync stock profiles and will overwrite edits made in place. Clones live in your user folder and survive every update we've seen since v1.8.
Forgely Performance PLA — Custom Profile
Clone the stock PLA Basic profile as your base and rename it Forgely Performance PLA. Then dial in the settings from the table below.
Why 215°C, not 220°C
Forgely Performance PLA is built on a NatureWorks 4043D-family resin blend. It flows cleanly about 5°C cooler than the OEM's PLA Basic without under-extrusion, and running it at the default produces slightly more stringing than we like on fine geometry. If you're printing over 150 mm/s outer walls, add 3°C back.
Flow ratio
Run the slicer's built-in Flow Dynamics Calibration (Calibration menu on P1/X1) once per new spool color. Different pigments load the resin differently — matte black often wants 0.97, translucent blue closer to 0.99. Solid whites and standard colors land near the 0.98 default.
Pressure advance
Start at 0.02 and print the K-factor tower from the Calibration menu. Look for the band where corners are sharp but the inner wall doesn't bulge. On the A1 we usually land at 0.020–0.024; on X1C the input shaper lets you push to 0.025–0.030 without visible ringing.
Solid vs translucent variants
Our translucent colors want +3°C on the nozzle and 10% slower outer wall speed to preserve clarity. The pigment load is lower, so molten strands stay glassy longer and need more time to bond cleanly. Solid colors (available in the full range) run the settings in the main table.
For how color and finish interact with settings, our PLA filament colours and finishes guide has the receipts.
PETG Profile
PETG is where most third-party profiles fall apart. Clone the stock PETG HF on P1/X1, or PETG Basic on the A1 (the HF profile assumes acceleration the A1 can't hit cleanly).
Target settings: nozzle 240°C, bed 70°C, part fan 40%. That 40% number is the one people get wrong. PETG wants weak interlayer cooling; crank the fan and you get delamination that only shows up when the part flexes.
Retraction stays shorter than PLA — around 0.6 mm. Longer retraction pulls molten PETG back into the melt zone where it stretches and severs, producing the hairy stringing PETG is famous for.
Max volumetric speed drops to 12 mm³/s. The stock HF profile pushes 20+ mm³/s and works on the specific HF blend it was tuned for, but almost no third-party PETG (Forgely included) has the melt-flow index to keep up.
Bed adhesion: textured PEI works cold and releases parts cleanly once the bed drops below 40°C. Smooth PEI will bond so hard you'll tear the sheet — use a glue-stick release layer, or swap to a textured build plate.
Full PETG temperature deep-dive lives in our PETG filament temperature guide.
TPU Profile
Clone the stock TPU 95A profile. TPU is the material OEM profiles get closest to right out of the box, but it still needs adjustment for third-party spools.
Speed cap: outer walls at 30 mm/s, infill at 40 mm/s. Push harder and the direct-drive head buckles the filament between the extruder gear and the hotend — you'll hear the clicks before you see the failure.
AMS caveat: only TPU spools explicitly rated TPU for AMS feed reliably through the AMS's PTFE path. Softer TPU (85A or below) needs to load from an external spool holder to keep the feed path straight and short. The AMS PTFE has enough friction that soft TPU compresses along the way and jams.
Retraction: near-zero, 0.4 mm. Any more and the flexible filament stretches inside the extruder gear and grinds itself into powder.
Bed 45°C, part fan 60%. TPU doesn't warp much so you don't need heat; the fan is there for detail retention, not layer bonding.
If you need the external feed path, the AMS rotary spool holder is the accessory to grab.
Per-Printer Tweaks: A1, A1 mini, P1P, P1S, X1C
Same filament, different printers, different constraints.
A1 / A1 mini are bed-slingers with no enclosure. On tall PETG or TPU parts, drop max acceleration by about 25% to avoid ringing at the top of the print where the moving bed carries the most inertia.
P1P has no aux fan and no chamber temp control. PETG cooling relies entirely on the part fan, so the 40% number in our profile is a hard ceiling — going higher fixes overhang sag but costs layer adhesion. ABS is technically possible in a P1P but out of scope for this guide.
P1S adds an enclosure but no active chamber heat. Same PLA/PETG/TPU profiles as the P1P; the enclosure helps with drafts and warp, not with anything the slicer needs to know about.
X1C has both the aux fan and the chamber fan. For TPU, set the chamber fan to 30% — enough to purge ambient moisture during a long print without cooling the chamber enough to warp a large PLA part on the same plate.
Nozzle size matters. These profiles assume the stock 0.4 mm hotend. A 0.6 mm hardened nozzle needs +10 mm³/s on max volumetric and a re-run of the flow calibration — the extra bore changes the melt geometry more than you'd expect.
AMS RFID vs Manual Setup
OEM spools carry an NFC/RFID tag on the bottom. When you load one into the AMS, the printer reads the tag, auto-selects the matched filament profile in the slicer, and applies the correct temperature and drying schedule.
Third-party spools have no tag. The slicer will show Unknown filament and default to Generic PLA — which is why the first print off a new Forgely spool often looks worse than the second, once you've fixed the profile assignment. Forgely spools are Bambu AMS compatible on the physical fit side; the RFID is the only piece you have to handle yourself.
Two workarounds exist:
- Manual assignment. Every time you load a Forgely spool, open the slicer, click the AMS slot, and pick Forgely Performance PLA from the dropdown. One click per spool swap.
- Reusable NFC tags. The community has reverse-engineered the tag format and there are open tools to write your own. It works, but it's a gray area — the format could change in a firmware update, and we don't officially support it.
Our recommendation is manual assignment. One dropdown per print swap is faster than debugging a broken tag write, and it keeps you on the officially supported path. If you want to look at AMS parts or grab a filament swatch for color matching, those pages have the accessories.
A1 owners: the AMS Lite has no RFID reader at all. Every spool is manual by default, so third-party filament feels native from day one.
Saving, Exporting, and Sharing Profiles
Once you have a profile dialled in, save it so you never rebuild it. Profiles export as .json, which makes them easy to move between machines or hand to someone else.
To import a profile someone sent you:
- Put the
.jsonfiles somewhere you can find them. - In your slicer, File → Import → Import Configs.
- Select all the
.jsonfiles at once. - They appear under My Filaments in the filament dropdown.
- Assign each one to your printer profile per material.
Bump a version string in the .json header when you revise a profile. Re-importing then overwrites the old version cleanly without touching your other custom profiles.
You can also export your own tuned profiles the same way. If you land on a killer setting for a specific print, share it back to us or the community on GitHub. Half the reason our defaults are what they are is customers sent us better numbers than we started with.
Reference: Forgely Filament Profile Settings
| Setting | Forgely PLA | PETG (stocked) | TPU 95A (stocked) |
|---|---|---|---|
| Nozzle temp (°C) | 215 | 240 | 230 |
| Bed temp (°C) | 60 | 70 | 45 |
| Part fan (%) | 100 | 40 | 60 |
| Flow ratio | 0.98 | 0.95 | 1.00 |
| Pressure advance | 0.02 | 0.04 | 0.05 |
| Max volumetric (mm³/s) | 18 | 12 | 6 |
| Retraction (mm) | 0.8 | 0.6 | 0.4 |
| Outer wall speed (mm/s) | 200 | 120 | 30 |
Numbers are for a 0.4 mm nozzle on an X1C or P1S. Drop max volumetric by 15% on the A1, and by 25% on the A1 mini.
The 3-Print Calibration Workflow
Budget about 90 minutes per material per printer. One-time cost, pays back on every print for a year.
Print 1 — Temperature tower. For PLA, sweep 170–225°C in 5°C bands. Pick the highest temperature that shows no stringing between the towers. That's your ceiling; drop 5°C for a safety margin.
Print 2 — Flow dynamics calibration. P1/X1 owners get a one-click version in the printer's own Calibration menu. A1 owners print a manual flow cube and measure top-layer thickness with calipers, then adjust flow ratio until the measured thickness matches nominal.
Print 3 — Pressure advance / K-factor tower. The slicer's Calibration menu generates one automatically. Look for the K value where corners are sharp but inner walls don't bulge outward.
Fold each result back into the cloned profile and save. You're now dialed in for that specific spool and printer combination.
Common Filament Issues
Under-extrusion on Forgely PLA. Raise flow to 0.99 or 1.00. If that doesn't fix it, check for a partial nozzle clog — a quick pass with a clog poke at temperature usually clears it.
Stringing. Nozzle temperature is too high, or retraction is too short. Drop temp by 5°C first; adjust retraction only if the temp change doesn't help. Temperature is the bigger lever.
PETG lifting corners. Bed is too cold, or the part fan is too aggressive on the first three layers. Raise the bed by 5°C and cap the fan at 0% for the first three layers.
TPU grinding in the extruder. Speed is too high, or retraction is above zero. Drop outer wall speed to 25 mm/s and retraction to 0.2 mm.
AMS Unknown filament loop. The RFID prompt won't clear because there's no tag. Assign the profile manually, then press Skip on the printer's own RFID prompt. It'll remember for the current print.
For a broader material-by-material temperature reference, the 3D printer nozzle temperature guide covers what to try when a print is misbehaving.
FAQ
Is the slicer free? Yes. Free, closed-source binary. No account required for basic slicing — sign in only if you want cloud print monitoring or AMS profile sync across machines.
Can I use Forgely filament without editing a profile? You can, using the stock Generic PLA profile. But you'll leave 10–20% of print quality on the table, and you'll see stringing and under-extrusion on complex geometry that a tuned profile handles cleanly.
Does the slicer work with non-OEM printers?
Officially no. Community forks support a wider range of printers and import the same .json filament profiles with minor tweaks to acceleration and retraction defaults.
Do I need to recalibrate for every color? For PLA, only when you switch between solid and translucent, or between matte and standard finishes. For PETG and TPU, once per spool brand is usually enough — pigment loading affects flow less on the tougher polymers.
Will slicer updates wipe my custom profiles? No. User-created profiles live in your user folder and survive updates. Cloned stock profiles also survive; direct edits to stock originals do not, which is why we always clone first.
Print More, Tweak Less
The 90 minutes you spend calibrating a filament profile pays back on every print for as long as you run that spool brand. Skip it, and every print carries the same 10–20% quality tax.
The numbers in the table above are the ones we run on our own machines, so treat them as a shortcut to the finish line rather than gospel. The calibration workflow works for any third-party spool, ours or anyone else's.
If you're setting up an A1, the best filament for the A1 (2026) guide has printer-specific notes across PLA, PETG, and TPU. When you're ready to restock, Forgely Performance PLA solid refills drop the spool from the equation and cut the per-print cost about 30%.