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 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 does it work?
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.
The “Fresh” powder is the so-called Fresh powder that is not suitable for use in the printer. For the highest-quality printouts, make the “Print ready” powder from the “Fresh” powder. To do this, use the PHS or the Powder Sieve to mix the “Fresh” powder with the powder remaining in the printer after the last print.
Contact Sinterit support with your questions.
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 Onyx is a bio-derived nylon powder known for its high strength, toughness, and impact resistance. It’s ideal for snap-fit designs, end-use parts, toolings, and components working under demanding conditions.
Yes, nitrogen is required during the printing process for this material.
It is compatible with Sinterit Lisa X and Lisa Pro printers.
The refresh ratio is 33%, meaning 33% of fresh powder must be added for every new print cycle.
The printed parts are black, offering a clean and professional look suitable for functional prototypes and end-use components.
PA11 Onyx features a tensile strength of 55 MPa, flexural strength of 54.2 MPa, and an exceptionally high impact resistance of 179 kJ/m² (Charpy unnotched).
It has a melting temperature of 200 °C and a heat deflection temperature (HDT A) of 47 °C.
The elongation at break is 31.6%, indicating excellent ductility—well-suited for living hinges and flexible applications.
The powder has a particle size range of 28–80 µm with a mean size of 40 µm, providing good surface finish and detail resolution.
Yes, it is bio-based, derived from renewable sources, making it a more sustainable option among engineering polymers.
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