TPU 87A Settings for Bambu Lab A1 Combo

Recommended slicer settings for printing TPU 87A on the Bambu Lab A1 Combo (256 x 256 x 256 mm build volume, 500 mm/s max speed, direct drive extruder).

根据厂商规格计算advanced

切片配置

将这些参数复制到你的切片软件(Cura、OrcaSlicer、PrusaSlicer、Bambu Studio)
参数数值范围
喷嘴温度223°C210-235°C
热床温度50°C40-60°C
首层喷嘴228°C+5°C above normal
首层热床55°C+5°C above normal
打印速度18 mm/s10-25 mm/s
首层速度15 mm/s25-50% of normal
外壁速度14 mm/s70-80% of normal
空走速度38 mm/s120-150% of print speed
层高0.2mm0.12-0.28mm
Infill15-20%10-30%
壁数3-4Perimeters/shells
顶层/底层5-6Solid layers
散热风扇100%From layer 2+
回抽距离0.8-1.2 mmDirect drive
回抽速度40 mm/sDirect drive

开始打印前

!
Filament Drying50°C for 5h
EnclosureNot needed
Nozzle TypeStandard brass 0.4mm
ExtruderDirect Drive
Direct drive — well suited for flexible filaments.

打印质量预设

Three presets for common use cases with TPU 87A on the Bambu Lab A1 Combo.

ProfileLayer HeightSpeedInfillBest For
Draft0.28mm25 mm/s10-15%Rapid prototyping, test fits
Standard0.20mm18 mm/s15-20%General purpose, everyday prints
Quality0.12mm10 mm/s20-30%Miniatures, display pieces, fine detail

热床附着

TPU 87A(Shore 87A,非常软)粘合良好到 PEI 片和美纹纸。极度灵活性使热床移除容易。第一层缓慢速度对一致粘合至关重要。

温度调校指南

Nozzle: 223°C

Range: 210-235°C. Printer max: 300°C.

  • Poor layer adhesion? Increase +5°C
  • Stringing or oozing? Decrease -5°C
  • Print a temperature tower to find your exact sweet spot

Bed: 50°C

Range: 40-60°C. Printer max: 100°C.

  • First layer lifting? Increase +5°C
  • Elephant's foot? Decrease -5°C
  • Let the bed fully preheat before starting

在 Bambu Lab A1 Combo 上打印 TPU 87A 的问题排查

极度灵活导致卡顿在 15-25 mm/s 打印;87A 很软,在挤出机路径中容易屈曲
直接驱动强烈推荐Bowden 套装将大幅斗争 87A 硬度
拉丝最小化回抽至 0.2-0.5mm;过度回抽导致卡顿,不是修复
挤出不足增加流量 10-15% 并打印非常缓慢

TPU 87A 使用技巧

1

Shore 87A 非常软且难以打印 -- 仅用直接驱动挤出机尝试

2

打印极度缓慢:15-25 mm/s;即使经验用户也难以超过 30 mm/s

3

几乎无回抽(0-0.3mm) -- 材料对常规回抽太软

4

结果值得:87A 生产具有极好弹性的橡胶样零件

支撑设置

For prints requiring supports with TPU 87A, use tree supports for easier removal and less scarring. Set a 0.15-0.2mm Z-distance between support and model. If you have a dual-extruder setup, consider PVA (for PLA/PETG) or HIPS (for ABS) as dedicated water/solvent-soluble support material.

Bambu Lab A1 Combo Specs

Build Volume256 x 256 x 256 mm
Max Speed500 mm/s
Max Nozzle Temp300°C
Max Bed Temp100°C
ExtruderDirect Drive

TPU 87A Properties

Nozzle Range210-235°C
Bed Range40-60°C
Speed Range10-25 mm/s
Difficultyadvanced
Drying50°C / 5h
EnclosureNot needed
了解更多关于 TPU 87A 的信息 →

TPU 87A 速览

优势

  • Very soft and flexible — Shore 87A
  • Ideal for gaskets, seals, soft grips
  • Excellent shock absorption
  • Stretches 500%+ before breaking

劣势

  • Direct drive extruder required
  • Extremely slow print speeds
  • Very difficult to control retraction
  • Prone to jamming in Bowden tubes
这些参数是基于厂商规格和社区经验的推荐起点。请先做测试打印并按需调整。具体参数可能会因你的打印机状态、环境和耗材批次而有所不同。

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来源: Based on Bambu Lab Wiki (wiki.bambulab.com), community testing data, manufacturer recommended ranges. 参数根据耗材规格和打印机硬件上限计算得出。