Description
eTPU-LW is a TPU material that can foam during the printing process. The printing temperature and speed can be adjusted to change the degree of foaming, resulting in the ability to adjust the strength and density of the part as desired. Foaming during printing creates a surface texture similar to fine sand and reduces the visibility of the print contours.
eTPU-LW has good flexibility, tear resistance and recovery due to its flexible foam material. The printed parts are soft and skin-friendly, making it suitable for wearable products that require flexibility, including printing models for COSPLAY.
Product Highlights
- Maximum foam expansion rate 172%
- Freely adjust the strength and foaming level.
- Fine sand texture
- Excellent interlayer adhesion
- Easy to type
- Can be colored conveniently
Net weight: 0.75 kg/roll
Recommendations for use
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Disable retraction in the slicer software to prevent voids from forming inside the nozzle, which can cause clogging. As TPU-LW continues to foam inside the nozzle at high temperatures, retracting is ineffective. Filament buildup during printing is normal, and Vase Mode can be used to reduce this effect.
- Set the first layer speed to match the actual print speed at 100% , and turn off the first layer and small area deceleration functions. The first layer extrusion rate should be set to match the actual extrusion rate after foaming (e.g. 58% at 260°C ). If the part is stuck too tightly to the build plate, adjust the bottom valve value during printing.
- Check the maximum temperature your printer can support (PTFE tube printers should not be used at temperatures above 250°C for long periods of time) as this may cause clogging. If you want to print at temperatures above 250°C, you should use a printer that supports high temperatures and use a metal hotend.
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Yellowing or sticking of the nozzle after printing at high temperatures is normal. Reducing the printing temperature can help reduce this problem.
- Adjust the printer's PID settings appropriately to maintain a constant temperature . Turn off the auto-reduce function , as changes in temperature or print speed may affect the foaming rate and cause visible print lines.
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The foaming rate is directly related to the printing temperature.
- At constant speed: Higher temperature = higher foaming rate (must reduce extrusion rate).
- At constant temperature: Higher speed = lower foaming rate (must increase extrusion rate).
You should adjust the extrusion, temperature, and speed settings to suit your printing needs, and compare the model wall thickness to find the best settings.
eTPU-LW is the TPU material can be foamed during the printing process. By adjusting the printing temperature and speed, the foaming degree of the filament can be changed, so that the strength and density of the printed product can be adjusted in a personalized way. Foaming during the printing process makes the surface of the product has a fine frosted texture, and not easy to show the layer pattern. eTPU-LW has good flexibility, hard to tear, and has good resilience. As a flexible foam material, the printed object is soft and skin-friendly, suitable for flexible wearable products and COSPLAY model printing.
- The maximum foam volume ratio is 172%
- Free adjustment of strength and foaming rate
- Delicate frosted texture
- Good interlayer adhesion
- Excellent printability
- Easy to paint
Net Weight：0.75 KG/spool
Note
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Disable retraction in the slicer software to prevent internal nozzle cavities that could cause clogging. Since lightweight TPU continues to foam inside the high-temperature nozzle chamber, retraction is ineffective. Stringing during idle moves is normal when printing, and you can use vase mode to reduce stringing effects on the model.
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Set the first layer speed to match the actual printing speed, at 100%. Disable the first layer and small-area slowdown function. Ensure the first layer extrusion rate matches the actual foaming extrusion rate (eg, 58% at 260°C). If the adhesion to the build plate is too strong, adjust the bottom valve during printing.
- Pay attention to your printer's maximum operating temperature . Most PTFE tube printers should not run above 250°C for extended periods, as this may cause clogs. For temperatures exceeding 250°C, use high-temperature machines with a metal hotend .
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Yellowing or nozzle sticking after high-temperature foaming is normal. Reducing the printing temperature can alleviate this issue.
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Tune the printer's PID settings for stable temperature. Disable speed reduction, as large temperature shifts or speed changes can affect the foaming rate and lead to visible layer lines on the model surface.
- The foaming ratio is positively correlated with printing temperature —at a fixed printing speed, higher temperatures increase the foaming ratio, requiring a lower extrusion rate. Conversely, the foaming ratio is negatively correlated with printing speed —at a fixed temperature, higher printing speeds reduce the foaming ratio, requiring a higher extrusion rate. Adjust extrusion rate, temperature, and speed according to your specific printing conditions, and compare wall thickness in the model design to optimize settings.
