One year after the release of the Sovol SV01, the Chinese manufacturer has launched a new double extrusion model, naturally baptised the SV02. Sovol sent me this new machine to test it and present it to you.
For beginners, who are wondering what double extrusion is, it simply means that this machine is capable of printing in 2 colours, unlike other conventional single extrusion FDM printers that can only print with one colour at a time. You can therefore install 2 different reels, and print on suitable models, specially designed for multi-extruder printers.
Overall the SV02 looks very similar to the SV01, the printing surface and structure are the same, however here are the main differences:
– Dual extrusion in Bowden for SV02 / Single extrusion in Direct Drive for SV01
– Colour touch screen for SV02
– Silent motherboard with TMC2208
To see the complete data sheet of the machine, go to the official Sovol website.
Sold 399$ without option, that is to say about 340€, the price remains relatively interesting for this type of machine in double extrusion (the SV01 is sold 299$), if you wish, Sovol also proposes other options when you buy the machine, such as a BL Touch sensor, a “Mix color” extruder allowing to print in gradation, or another type of magnetic metal plate (original ultrabase glass plate). For some of these options, you will need to update the firmware (available on Sovol’s website). Sovol offers these machines in European stock, so you can order without fear of additional customs charges, and delivery should be relatively quick (less than a week).
If you prefer to go through a French reseller, you can get it from Amazon at 340€.
Let’s go on to unboxing of the Sovol SV02 :
The machine is very well protected, and partially assembled, we find a wide range of accessories such as a spatula, micro SD card, cutting pliers, reel holder… as well as 2 small PLA reels.
For the assembly, count approximately 15min, to assemble the frame and fix the touch screen, nothing to complicate, just a few screws… without forgetting the connection of the various cables, this is well detailed in the assembly instructions.
Once the machine is assembled, it will be necessary to proceed to the adjustment of the tray, this machine does not have a self-levelling sensor (possible in option), you will have to check the level of the tray for the 4 corners and the centre, using a sheet of A4 paper, if this is your first 3D printer, you will find many tutorials on Youtube on this subject.
If after your plate calibration, you find that your first layer is too much (or not enough) overwritten, you can also use the Z-offset compensation function directly on the touch screen.
Please note, if you encounter a problem with the heating plate, which stops after a few minutes of printing, you will have to deactivate the “Economic” mode in the printer’s adjustment menu, indeed, this “Energy saving” mode is not relevant if you are using the ultrabase type plate, the heating plate must imperatively remain lit during the whole printing time.
Before starting your first print, please insert the filament correctly, Sovol had the good idea to mark the PTFE tubes, indicating the recommended filament insertion limit, please always respect these marks, this will prevent your head from clogging when starting a print. In fact, the machine automatically manages the filament shrinkage at each colour change, removing the filament by several centimetres, based on this original positioning, if you insert one of the colours all the way to the end (of the nozzle), when you start printing, the machine may want to load the other colour when there is already filament inside.
For your first print, I strongly advise you to print out the sample file supplied with the machine (SS Cube), to make sure that the machine works properly, for my part, being impatient I did not let the printing come to an end.
Once this first print has been done, it’s time to move on to adjusting your slicer!
For my part, I’m currently using SuperSlicer, which is simply a fork version of Prusa Slicer with some advanced features, so I’ve done my tests with this software, globally the result with Prusa Slicer should be similar. You can also opt for Cura, or Simplify 3D, I haven’t been using these softwares for several months now, so I haven’t done any tests in this direction. I personally find the multi extrusion management of Prusa Slicer (or Super Slicer) very intuitive.
Here are my Prusa Slicer settings for Sovol SV02 below :
I didn’t have great difficulty creating this profile, I simply started from a “Creality Ender 3” profile, available natively in the latest Prusa Slicer version, I then replaced the number of available extruders in the “Printer settings” tab, then I just had to activate the “Cleaning tower” purge mode in the “Print settings” tab and that was it.
When you want to print a multi-colour template, the file is usually split into several separate STL files. If you load all these files at the same time in the Prusa Slicer, the software automatically detects that it is a “multi-material” template and offers to load it as a single merged template. You can then easily choose which extruder (for the SV02 Extruder 1 and Extruder 2) to use for each block.
Here is my very first impression, made with the Sovol SV02, for this impression I did not have my final settings for the cleaning tower yet, we can see that it is only a few layers thick, the purging having been done here in the filling of the model.
After having succeeded in printing in its original size, I also used this model in 300%, the result is really clean, with a relatively basic profile and quickly set up. Printing with a layer height of 0.24mm, and PLA+ Sunlu filament.
We follow with other prints, always in PLA, a model that was sent to me directly by Sovol, with Gold Silk and white filament. I don’t know the print settings (under Cura) for this model, but the result is also very clean.
This printer is of course capable of printing in simple extrusion, printing in PLA Silk White from Creality, with a layer height of 0.16mm.
My son being a big fan of the Among Us game on smartphone, here are some impressions of small figurines made with the Sovol SV02.
A small mix of the other impressions that I have been able to achieve successfully with this machine:
Is the SV02 sovol silent?
Equipped with a silent motherboard with TMC2208 drivers, this machine is relatively quiet during printing, however the noise of the fans can be heard slightly, so this machine is not completely silent.
Is this machine reliable? Does the head often clog up?
It is true that multiple extrusion printing can often cause problems, or head clogging during filament changes. Concerning this Sovol SV02, except for one print for which I had forgotten to correctly position the filament at the mark on the PTFE tube, I did not encounter any problems on my different prints (more than 100h of printing for this test). So this machine is relatively reliable, to be seen in the long term, but I am satisfied overall, I imagined I would have encountered more difficulties with this machine, I was pleasantly surprised by its ease of use.
What upgrades are required for Sovol SV02?
You can consider installing a BL Touch, however I didn’t feel the need to do so, I only did the tray adjustment once, and I haven’t had to touch it since. The extruder kit with mixing can be interesting if you want to print in gradient, or even simulate a 3rd colour (in 50% for extruder 1 and 50% for extruder 2), I have not yet tried this extruder (I received it with the machine, but I will install it later). The metal magnetic platen with PEI surface may be an interesting option, especially if you want to print PETG, but this ultra basic platen works well for my part.
Do I need to buy this machine?
Its price around 340€ is interesting for a double extrusion machine, the components of this machine are of good quality, and the printing quality is excellent. I can only advise the purchase of this machine, if you are looking for a machine that can print in several colours, this machine is also suitable for a beginner. It is preferable to buy it directly on the official sovol website or on their official Amazon Store, in order to guarantee a fast delivery and an official after-sales service.
I would like to thank Sovol for their trust and for sending me this machine for a review, which I guarantee to be totally impartial.
Feel free to leave a comment on this article if you have any questions or other remarks.