As SLS 3D printing is getting more popular, we share our insights, tips, and tricks for you to use.
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What is the refresh rate?
It is the ratio of a minimum amount of fresh powder needed in a mixture of material used in an SLS 3D printer. A lower refresh ratio means better cost-efficiency of the material.
How it works
The amount of needed fresh powder is automatically calculated by our software and shown on the printer screen after the print job is finished. Just add shown amount of material into the mixing cycle of used material and you can start your next job with refreshed material.
Sinterit’s Lisa X has allowed us to reduce lead-times and create better solutions — faster, helping us satisfy our customers. We have looked at other 3D printing methods, and other brands, but ultimately decided on SLS and chose Sinterit for their communication, and open material possibility. Something we couldn’t find in other suppliers of affordable entry level SLS printers.
Getting Lisa X solved a lot of our problems. It has a big enough printing area, so we almost always can print big components in one part. It wouldn’t be possible with competitive SLS 3D printing solutions.
The main reason Somfy reached out for the SLS technology from Sinterit was productivity. Printing many pieces in one batch was a game-changer
When we look at Lisa’s line of printers, or Sinterit at general compared to other companies, the two major things that we liked were the materials, that are open source, so we are not locked into one brand […]. We are able to look around the market and use a material that works best for the part.
Contact Sinterit support with your questions.
In Sinterit we distinguish three powder conditions: print-ready, used, and fresh.
SLS polyamide powder used for 3D printing is considered particulate matter because of its size. Polyamide powder particles are generally 40 micrometers or smaller. If vacuumed in an ordinary vacuum cleaner, the powder could cause an explosion.
Such materials are subject to labor regulations on air quality and occupational safety. The procedures call for appropriate maintenance of powder at work. Only certified industrial vacuum cleaners should be used to clean such materials. More information about the ATEX Vacuum cleaner can be found here.
Contact Sinterit support with your questions.
PA11 Carbon Fiber is a bio-derived composite powder based on Polyamide 11 and enhanced with carbon fibers. It offers superior mechanical strength, thermal resistance, and stiffness, making it one of the strongest SLS powders available.
This material is ideal for high-performance automotive parts, motorsport components, aerospace models, prosthetics, maintenance tools, and mechanical parts in extreme environments.
It is compatible with the Sinterit Lisa X and Lisa Pro printers.
Yes, nitrogen is required to print with PA11 Carbon Fiber.
The refresh ratio is 40%, meaning 40% of the powder in a new job must be fresh.
PA11 Carbon Fiber offers a tensile strength of up to 65.9 MPa, flexural strength up to 87.3 MPa, and impact resistance up to 73.9 kJ/m² (Charpy unnotched).
It features a melting point of 197 °C and a heat deflection temperature (HDT B) of up to 190 °C in the X direction—one of the highest in Sinterit’s powder range.
PA11 Carbon Fiber provides good surface quality along with high stiffness, dimensional stability, and chemical resistance.
The powder and printed parts are black, which gives a professional, high-performance appearance.
Yes, it is bio-based and derived from castor oil, making it an environmentally conscious choice for high-end engineering applications.
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