Polymaker CoPE: Fast Copolyester for the Desk

Polymaker CoPE is a copolyester filament for desks that want PETG-like behavior at PLA-like heat. On September 28, 2026, Fabbaloo reported the Panchroma spool in 27 colors, with Polymaker rating it to 400 mm/s at 190–230°C. For a home printer, this is a materials swap. Start from PLA settings, then check bed grip, PLA bonding, and whether fast layers stay fused. The speed line is Polymaker’s claim, not a lab certificate.

What's Happening

Fabbaloo described CoPE as a Panchroma material, Polymaker’s appearance line. The name points at a copolyester. PETG is the familiar one: polyethylene terephthalate modified with glycol. Fabbaloo’s reading is that this grade keeps a PETG-like character while printing cooler and faster, and that Polymaker presents it as usable with PLA settings.

Polymaker’s own product page and filament wiki list the working window. Nozzle temperature is 190–230°C. Bed temperature is 25–60°C. The cooling fan stays on. An enclosure is not required. Stated print speed is up to 400 mm/s, and the wiki caps volumetric flow at 32 mm³/s on a 0.4 mm nozzle. Direct-drive retraction is listed at 1 mm and 20 mm/s; indirect drive at 3 mm and 40 mm/s. Drying is 55°C for six hours only if the spool has taken on moisture.

Two handling notes matter more than the headline speed. The shop page says not to combine this filament with standard PLA in the same part, because the materials do not bond reliably. Fabbaloo treats that weak interface as a feature: CoPE can sit under a PLA model as breakaway support. The shop page also warns that textured PEI can grip hard enough to damage the plate, and it suggests a release aid plus a bed around 40–50°C, not above 60°C. Fabbaloo reported about US$17 per kilogram. That price and the 27-color count are from the news report.

The pages cited above do not publish tensile, impact, or heat-deflection numbers. The product page notes that the technical data sheet still uses an older “Regular” name. Until an updated sheet exists, 400 mm/s is a process claim, not a strength claim.

Why Polymaker CoPE Matters for Desktop Makers

Most desks already run PLA for easy prints and PETG when a part needs a bit more heat resistance and toughness. The annoying part of PETG is the process: hotter nozzles, stringing, and a speed ceiling that shows up as gaps before the slicer warns you. A copolyester that starts from PLA settings would shorten that setup if the claims hold on your hotend, your plate, and your part geometry.

The practical tests are small. Print a temperature tower inside 190–230°C before you trust a 400 mm/s profile. Print a bridging and overhang coupon, because Polymaker says those are the reasons the formula exists. If you use textured PEI, add a release layer and let the plate cool before you pry. If you want breakaway supports under PLA, print a two-material coupon first. A weak bond that helps supports will also split a part you meant to be one piece.

Speed still has a cost on ordinary PETG, and nothing in the launch shows this grade is exempt. A fast visual spool is a good fit for housings, organizers, and color prototypes. It is a poor substitute when the part has a named load, a fiber path, or a safety factor you can write down. That is a different material decision, not a slicer checkbox.

How Polymaker CoPE Compares With PLA and PETG

Use the maker’s settings as a checklist, then verify the line that matters for your part. Figures in the first column are Polymaker’s or Fabbaloo’s, not independent measurements.

Check	What the launch states	What to confirm on your printer
Nozzle	190–230°C; PLA settings are the suggested start	Actual hotend temperature and whether the strand stays consistent
Bed	25–60°C; textured PEI can grip hard enough to damage the plate	Smooth plate, or a release aid, and release after the bed cools
Speed	Up to 400 mm/s; wiki lists up to 32 mm³/s on a 0.4 mm nozzle	Layer fusion, bridging, and surface voids at the speed you actually run
PLA interface	Does not bond reliably with standard PLA	Breakaway support is useful; a mixed structural part is not
Strength data	No tensile sheet in the pages cited here	Do not treat a speed rating as a load rating

What the Research Says

Loskota and colleagues printed PETG across a range of speeds and inspected the plates with microscopy, roughness, and microtomography (Loskota et al., 2023). Higher speeds produced voids inside the part and on the surface. They judged speeds up to 60 mm/s suitable for their samples. Indentation hardness and modulus depended only slightly on speed. Their material was standard PETG, not this new grade. The useful lesson is the failure mode: speed first shows up as missing material.

Tunçel, Kahya, and Tüfekci used a response-surface design on fused-filament PETG and measured flexure (Tunçel et al., 2024). Layer height dominated flexural modulus and toughness. Nozzle temperature had the significant effect on flexural strength. Their optimized point reached about 39.55 MPa flexural strength and about 1344.60 MPa flexural modulus, with validation error under 3.17%. If you chase a high speed rating on a copolyester, temperature and layer height still deserve the first experiment. Neither paper tested Polymaker’s formula.

Frequently Asked Questions

What is Polymaker CoPE filament?

Polymaker CoPE is a Panchroma copolyester filament. Polymaker lists a 190–230°C nozzle, a 25–60°C bed, fan on, and no enclosure, with a stated speed up to 400 mm/s. Fabbaloo reported 27 colors and about US$17 per kilogram. Those figures are company and press claims, not an independent strength test.

Can I print CoPE with PLA settings?

Polymaker says standard PLA settings are a starting point, with the fan on and a 0.4 mm or larger nozzle. It also says this copolyester does not bond reliably with standard PLA, so do not mix the two in one solid part. On textured PEI it can stick hard enough to damage the plate.

Is CoPE as strong as PETG at 400 mm/s?

The launch notes do not publish a tensile sheet for this spool. Research on PETG shows speed is not free: Loskota et al. saw surface voids above 60 mm/s in their samples, and Tunçel et al. found nozzle temperature drove flexural strength. Treat 400 mm/s as a maker rating until you test your machine.

Fibricate's Place in This Story

A color copolyester is a desk material for shape, finish, and easy settings. It does not put a continuous fiber into the load path. Shops that need that path look at a different class of desktop machine. The FibreSeeker 3 continuous carbon fiber 3D printer co-extrudes continuous carbon or glass fiber with polymer on a 300×300×245 mm build volume, with tensile strength listed up to 900 MPa in Hyper Strength Mode. A continuous carbon fiber spool is the feedstock for that fiber path. Use the new copolyester when the part is a visual or lightly loaded print. Use continuous fiber when the part has to carry a load you can name. Fibricate sells the printer and the fiber; it does not sell this Polymaker grade.

What to Watch Next

The missing document is an updated technical data sheet with tensile, impact, and heat numbers under the CoPE name. Until that sheet lands, user coupons will do more work than the 400 mm/s line. Watch whether the PLA breakaway-support trick holds across colors, and whether textured-PEI damage reports show up once more people print overnight. Over the next year, expect more “PLA settings, PETG behavior” copolyesters. The ones that last will publish strength at the speed they advertise, not only a nozzle window. If those numbers stay absent, treat the spool as an easy-printing appearance material and keep structural jobs on a material with a datasheet.

References & Further Reading

1. Loskota, J., Jezbera, D., Loskot, R., Bušovský, D., Barylski, A., Glowka, K., Duda, P., Aniołek, K., Voglová, K., & Zubko, M. (2023). Influence of print speed on the microstructure, morphology, and mechanical properties of 3D-printed PETG products. Polymer Testing.
2. Tunçel, O., Kahya, Ç., & Tüfekci, K. (2024). Optimization of Flexural Performance of PETG Samples Produced by Fused Filament Fabrication with Response Surface Method. Polymers.
3. Polymaker Introduces CoPE, a Fast-Printing Alternative to PLA and PETG. Fabbaloo. Retrieved September 29, 2026.
4. Polymaker. Panchroma CoPE product page, and Panchroma CoPE wiki. Retrieved September 29, 2026.