When do I get my kit?
If in stock – shipping within 1 – 2 weeks.
If in production – shipping within 8 – 12 weeks from the order date. Estimated shipping date is indicated at the product page.
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Orders before 1 Aug 2025
We manufatured our FULL kits in batches where each batch was defined by size, fixed deadline for orders and fixed delivery date. Batches were opened on the monthly basis with the delivery in approximately 12-16 weeks.
How can I support the project?
You can order one of our kits or donate to support this project here.
What is SLS?
Selective Laser Sintering is one of the 3D printing methods, which was explored and patented in early 80’s. It utilizes laser beam to sinter powder materials layer by layer together. As compared to FDM/FFF technology it is suitable mainly for the functional parts, like prototypes or small series end products. It is mainly given by the exceptional mechanical, chemical resistant and temp resistant features of the SLS printed parts.
Is the printer intended to print metals?
No, it is quite different discipline. This printer is about to print plastic polymers.
What are the estimated material costs of the DIY build?
The cost of materials and components is around USD 3,000 excl. VAT, plus other costs such as machine costs, labour costs, etc.
Which type of laser is used in SLS4All?
It is the 10W laser diode source emitting the laser beam within the blue spectrum (wavelength 450nm).
What is the spot size and max. scanning speed?
Spot size is approx. 350 microns with average scanning speed around 2,800 mm/s.
Does it use f-theta lens?
No, it doesn’t. It uses simple optic lenses. At this moment Keplerian telescope optical arrangement is in place.
Instead of the f-theta lens we use software corrections to eliminate spot deformation and defocus.
What is the desired effective print volume?
At this stage it is 150x150x180mm. Total print chamber volume is 177x177x200mm.
What material is being used for printing?
It is the Nylon PA12 at this moment. Flex TPU is planned as the next one.
What is the common layer height?
100 microns
Is the powder toxic?
No, it is not. There are no health-risks but safety glasses, gloves and respirator are recommended.
How much does the powder material costs?
Branded powders start at 100USD per Kg. Unbranded quality powders directly from manufactures at Alibaba start at about 55 USD per Kg (excl. shipping).
What kind of recoating mechanism is in place?
We started with counter rotating roller but moved to flat-bottom blade later.
Does printer use active heating?
Yes, it has 14 thermo regulation loops in total. Five for powder chamber, the same for print chamber and four for surface heating control.
What firmware does the printer use?
Highly modified version of the Klipper Firmware running on BigTreeTech board SKR 1.4 Turbo and Raspberry Pi 5 (4GB RAM).
What control SW does the printer use?
It is our own proprietary SW called SLS4All Compact, implemented as the web-based app.
Which 3D file formats are supported?
At this moment the STL, 3MF and OBJ formats are supported.
What is the connectivity of the printer?
It can be connected via ethernet or wifi. USB is also ready to use.