HT-PLA – how to print

To achieve the best performance and ensure a successful 3D-print that is durable, visually fine and dimensionally stable up to 150 °C, please follow the guidelines below.

⭐ Recommended profile

1. Printing with the Dedicated Spectrum Profile

If you are not fully satisfied with the results when using the Generic PLA profile, you can download and use our dedicated The Filament HT-PLA printing profile.

Printing profile for Bambu Lab A1 / P1S / X1C – download

Not sure how to import printing profile into Bambu Studio?

Watch the video or see further instructions in following sections.

Standard profile

2. Printing with the Generic Bambu Lab Profile

The Filament HT-PLA can be printed successfully using the Generic PLA printing profile available in Bambu Studio. For some geometries, however, it may be necessary to adjust temperature and cooling settings.

Not sure how to change temperature and cooling settings?

Watch the video or see further instructions in following sections.

Bed adhesion & first layer

  • HT-PLA prints similarly to standard PLA, but due to its higher stiffness, ensuring strong bed adhesion is essential.
  • The first layer is crucial – make sure the nozzle-to-bed distance is properly calibrated (filament calibration is strongly recommended).
  • Cooling: 80–100%, depending on the geometry of the model.
  • Flow calibration is strongly suggested.

Bed surface

  • Because of the material’s stiffness, HT-PLA has a tendency to slightly warp at the corners. Always clean the bed thoroughly before applying adhesives to remove dust and grease.

Warping prevention

  • With larger models and sharp corners, slight warping may occur – always use a brim (minimum 5 mm) to improve adhesion and stabilize the first layers.
  • For large, boxy models, it is recommended to design “sacrificial surfaces” (to be removed later) in order to minimize the risk of deformation.

✅ Textured Plate (with brim & adhesive)

❌ PEI Textured Plate (No brim)

Enclosed 3D printer

On printers with an enclosed chamber, better results can often be achieved with the doors fully open and the top cover removed. This allows the filament to cool down faster and helps prevent the model from deforming on larger prints due to its own weight, or on overhangs due to the material’s plasticity.

Open 3D printer

On printers with an open build chamber, it is important not to leave the printer in areas exposed to drafts. Sudden airflows can lead to issues such as warping, layer separation, or poor surface quality.

Model on left - closed chamber and top cover and insufficient cooling.
Model on the right - open door and top cover and 100% cooling.

ℹ️ Tip:

For printers with an enclosed chamber open the doors and remove the top cover, as HT-PLA filament needs to cool down faster than regular PLA to avoid warping or deformation on larger prints and overhangs.

A wide range of products

Wide portfolio consisting of over 50 filaments with a versatile range of properties and applications, divided into three segments: desktop easy-to-use, industrial grade and high performance.

High quality

Innovation, extrusion know-how and highest quality filaments are the pillars of Spectrum philosophy. Our team is working continously on the development of new materials and their applications.

European made

All filaments from our portfolio are in-house made. We use modern production lines equipped with non-standard solutions to obtain highest quality final product.

Professional technical support

Our qualified support team helps at every stage from material selection to the 3D printing process.

facebook twitter youtube vimeo instagram