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TPU settings for the Creality Ender 3 S1

Great match

Quick answer: Print TPU on the Creality Ender 3 S1 at 225°C hotend, 45°C bed, 28 mm/s, 40% part-cooling fan and 0.6 mm retraction. Run a temperature tower to fine-tune your exact spool.

These are tuned starting settings for printing TPU on the Creality Ender 3 S1. The Creality Ender 3 S1 has a direct-drive extruder with a PTFE-lined hotend, so we set the hotend to 225°C and the bed to 45°C. TPU is a rubber-like flexible filament; slow speeds and direct drive give the best results.

225°C
Hotend
45°C
Bed
28 mm/s
Speed
40%
Part fan

Recommended TPU profile

Hotend temperature225°C (tower 210–235°C)
Bed temperature45°C
Print speed28 mm/s
Retraction0.6 mm (direct drive)
Part cooling fan40%
Bed adhesionClean bed; glue usually not needed.
NozzleBrass 0.4 mm
DifficultyIntermediate
💡 Best uses for TPU: phone cases, gaskets and flexible parts.

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Troubleshooting TPU on the Creality Ender 3 S1

ProblemFix
Stringing or fine hairsDry TPU before printing, drop the hotend a few degrees below 225°C, and raise retraction toward 1.0 mm. Damp filament is the No. 1 cause of stringing.
Poor first-layer adhesionClean bed; glue usually not needed. Re-level the bed, set a slightly squished first layer, and wipe the sheet with IPA so it is grease-free.
Blobs, zits or rough wallsSlow the outer wall, enable coasting/wipe, and keep retraction near 0.6 mm. Keep the part-cooling fan low so layers bond and warping stays down.

FAQ

What temperature should I print TPU on the Creality Ender 3 S1?
Start at 225°C for the hotend and 45°C for the bed, then run a temperature tower across 210–235°C to dial in your exact filament brand.
What print speed works for TPU on this printer?
Around 28 mm/s is a safe starting point on the Creality Ender 3 S1. It can go faster once the profile is tuned, but start conservative for clean walls.
What retraction should I use?
Use about 0.6 mm of retraction (direct drive needs very little). If you see stringing, raise retraction speed before distance and dry the filament.
Do I need an enclosure for TPU on the Creality Ender 3 S1?
No, TPU prints fine in the open on the Creality Ender 3 S1.

Sources & how we tuned this

These settings are community-tested starting points, cross-checked against manufacturer guidance and trusted material references:

Last verified: 2026-07-17. Always run a temperature tower and a small calibration print for your exact spool.