Sonda SYS. SL02

If you’re looking for the most flexible industrial SLS 3D printer you can get – Sonda SYS. SL02 is for sure one of them. We have developed it to be as useful and as cost and time effective as possible.
That is why our SLS is  2 in 1 device – it is one SLS 3D printer provided with a build volume of changeable size. So finally you can have one SLS 3D printer but with both smaller and larger build volumes and use them depending on current projects and needs.
SondaSYS SL02 is the only SLS 3D is  equipped with the top quality optical system: Cambridge Lightening 2 from Cambridge Technology. So that  gives to our devices significant market advantages.


The build volume that can be RESIZED.

That gives impressive effects in the optimization of production costs by adjusting the size of the build chamber volume to current needs. All what is needed is to choose size 1 (265 x 265 x 310 mm) or size 2 (365 x 365 x 610 mm). The device will prepare a smaller or larger build chamber volume by itself.
When choosing smaller build volume, the heating and cooling time will be shorter, the amount of powder needed to use much smaller and cost per part also lower.
When having a 3D printer with a permanent build chamber size you need to repeat the printing process or use other devices when need a bigger size of quantity. Whereas, in SL02 users just need to change printing settings and choose other, larger printing space. So tailoring build chamber volume to current needs allow also to speed up the process by reducing heating and cooling times.

Smooth changing the size of the laser beam spot during the printing process.

Thanks to that the process can be speed up through a faster filling model and that enables significant acceleration of the process and termination of work. How big? That depends on the model’s size, but it can save 5-10 seconds on just one layer and then multiply it by layer number.
Changing the size of the laser beam during the printing process is also preserving the precision of external surfaces. It is all digital controlled and operated. A thicker laser beam makes the models stronger. So finally the model has less dispersed structure and have greater strength inside. That significant producing functional prototypes, tools, or short-run product series.

Minimizing distortion.

3-axis galvo system does not need to operate the f-theta lens. Used in standard 2-axis systems f-theta lens heats too much and that causes distortions. In SondaSYS SL02 3-axis galvo system distortions are minimizing and problems with lens changing the geometry by itself under the influence of temperature are eliminated. So there is no need to change the scanned portion of the working plane to evenly distribute the temperature on the lens surface, like in 2-axis systems.

Precise laser path guidance.


Advanced algorithms direct the mirrors of the galvo system in a way that allows to take full advantage of their inertia and thus eliminate typical problems appearing in standard solutions.

SondaSYS “skywritting”


In standard 2-axis systems, the laser dot moves from point A to point B. At point B, the laser dot must stop and after stopping it jumps in a straight line from point B to C, then the mirror accelerates and runs further to point D. In such a system, the laser slows down at point B, while it constantly releases the same energy. So at points B and C, the powder is sintered harder and deeper – due to laser downtime at these points, the emitted energy is greater than it should be. Mirrors when stopping still have their inertia (the X mirror responsible for the A-B segment is still vibrating, and the Y mirror responsible for the C-D segment is just accelerating)) and this movement, although it only lasts milliseconds, can then be seen on the models, as it causes folds in angles of sharp models.

In the SondaSYS SL02 System  the laser moves from point A to point B at full speed, then makes an arc, at point B the laser turns on and continues to move at full speed. Turning the laser on and off is controlled and set using the SondaSYS RP software. Algorithms of the Cambridge Lighting 2 system are responsible for the smooth movement of the laser beam. The turn on/off time of the laser is set during the first calibration of the device. These settings remain unchanged and fixed and there is no need to re-calibrate them.

SondaSYS_skywriting (1)
sondasys+skywriting (2)

High-performance materials

The heated print chamber can reach up to 300°C, which enables the user to print with a wide range of high-performance materials, including PA6.

Open parameters

SondaSYS SL02 works with powders from all providers and producers.
Read more here.


We can rebuild and develop 3DP devices that include specific, individual client’s needs. Every device we produce is dedicated to the customer and differs a little bit from the others. We have a few options we can modify and our clients have to choose the final printer’s parameters before we start building it. This kind of customizing is our key distinguishing factor on the market, which gives us business advantages and to the customer possibility of purchasing exactly the machine they are looking for. We are prepared for delivering additive manufacturing machines that are tailored to the specifics of the separate company’s operations as much as possible.



       SondaSYS SL02 technical specification:

Build volume

Dimensions (both included in price)

size 1: 265 x 265 x 310 mm
size 2: 365 x 365 x 610 mm



Material heating system

Infrared heaters


Available materials

Polyamide powders PA 11, PA12; CUSTOMIZED: PA6


Operating system

Windows 10

Physical properties


1985 x 1515 x 2160 mm



~1500 kg


Working temperature

20-26 ºC


Power supply

3/N/PE/ 400V AC


50 Hz


8 kW, 3×32 A





Laser diameter (1/e2)

0.25 – 0.4 mm



60-100 W


Scanning speed

up to 12 m/s

Tolerances and dimensions

Layer thickness

0,1 / 0,12 / 0,15 / 0,18 mm


Minimum wall thinckness

0,5 – 1,0 mm



+/- 0,3% with minimum of +/-0,3 mm



Ethernet, Wi-Fi, Bluetooth



SondaSys RP


FIle formats




12 months or 10 000 h



12 months