SainSmart INFI-20 Belt 3D PrinterSainSmart INFI-20 Belt 3D Printer

SainSmart INFI-20 Belt 3D Printer

4.00 out of 5
(4 customer reviews)

SainSmart INFI-20 Belt 3D Printer has 200 * 180 * ∞ mm build volume, < 180mm/s printing speed, and USB or WIFI connectivity. It offers infinite printing without any compromise to its quality, accuracy, and precision.


SainSmart INFI-20 Belt 3D Printer has a “One-Click Layer Test” feature. It allows the user a rehearsal to check the distance between the nozzle and belt and gives them an idea about the model they will get at the end.

It has an upgraded belt design to allow stronger adhesion of the model and to keep the belt leveled and flat, which in turn reduces the chances of misalignment or belt slipping.

Installation of Single axis motion enables the device to generate more reliable and accurate prints. INFI-20 Belt has a better heat dissipation mechanism, quality pulley wheel, and stable triangle structure to make it user-safe, quieter, and give out better quality prints.

The integrated control board saves space and has built-in “OctoPrint API” and “ESP3D Web UI” to allow the user to control their models via mobile phones or web browser respectively.

Last but not least, SainSmart INFI-20 Belt has resumed printing and filament runout detectors. It will detect the unexpected power shortage and switch off the device to keep it safe from getting over-load while filament runout detectors work to send a reminder to the user to add a new spool of filament.


Filament diameter:                                        1.75 mm

3rd party filaments:                                        Yes

Compatible materials:                                    PLA, PETG

Print Size:                                                            200 x 180 x ∞ mm

Molding Technology:                                    FDM

Number of nozzles:                                         1

Build volume:                                                   200 * 180 * ∞ mm

Layer Height:                                                        0.1-0.4mm

Nozzle Diameter:                                                 0.4mm

Printing Accuracy:                                            土0.1mm

Material:                                                             PLA, PETG

Cura Profile:                                                           PLA, PETG

Recommended slicer:                                       SainSmart Slicer (Click to download)

Operating system:                                            Windows/Linux/macOS

File types:                                                               STL/OBG/AMF

Max. extruder temperature:                          240 ℃

Max. heated bed temperature:                      100 ℃

Max. print speed:                                                < 180mm/s, normally 30-60mm/s

Connectivity:                                                         SD, OctoPrint

Resume print:                                                        Yes


u003cstrongu003eIs SainSmart INFI-20 Belt an auto-leveling 3D Printer?u003c/strongu003e

No, SainSmart INFI-20 Belt 3D Printer needs to be adjusted manually.

u003cstrongu003eDoes SainSmart INFI-20 Belt 3D Printer support PETG and ABS?u003c/strongu003e

No, both PETG and ABS have higher melting points (above 260˚C) than the maximum temperature of the SainSmart INFI-20 Belt 3D Printer. Therefore, it is not possible to print PETG and ABS with this printer.

u003cstrongu003eDoes SainSmart INFI-20 Belt 3D Printer have a touch LCD screen?u003c/strongu003e

Yes, SainSmart INFI-20 Belt 3D Printer comes with a color screen and Smart UI for better user interface, axis movement, and numerical adjustment. 

Additional information



Materials Supported



SD Card

Auto Leveling


Heated Bed


Number of Extruders


Print Resolution

100 microns

Print Speed

180 mm/s

Print Volume

7.9 x 7 x 7 inches

Product Dimensions

Item Weight

4 reviews for SainSmart INFI-20 Belt 3D Printer

  1. michael
    4 out of 5


    this printer has a better heat dissipation
    has an integrated control board making it possible to be compact taking less space
    can be controlled via a web browaser or mobile phone
    it has a simple and clear modern user interface in combination with a full screen and a rotary knob to control numerical adjustment

  2. michael
    4 out of 5


    This printer provides the freedom to enjoy an infinite 3D printing experience. It has an XY structure that enhances stability while printing. It is designed with a filament runout sensor that alerts me of the depletion of filament. The printer has a straightforward user interface allowing me to track printing progress.

  3. michael
    4 out of 5


    It doesn’t come fully assembled but the simple design and the layer test feature make set up very easy. The conveyor belt has a roughened texture that improves adhesion to its surface. The silent drivers greatly reduce noise and with the filament run-out sensor and resume printing function ensure a smooth printing performance. I had some trouble with the slicer software but I believe a firmware update should fix it. Overall print quality is smooth and consistent.

  4. michael
    4 out of 5


    This printer has been nothing short of amazing, and it’s a great choice of 3D printer because it prints non-stop without it driving you crazy; equipped with TMC2208 silent drivers, which ensures the printer will print in silence, filament run-out sensor and resume printing support make filament running out and power outage no longer an issue. A powerful yet stable 350W also adds to the confidence in long-time printing. It uses a simple & clear modern user interface, in combination with a full-colour screen and rotary knob control for numerical adjustment and axis movement, keeping it easy to use. What bursts my bubble is the printer’s built-in ESP3D Web UI and OctoPrint API, with which you can control your printer and print your models via a web browser or mobile phone application. The textured nylon conveyor belt on the printer delivers excellent print adhesion and smooth print quality, and it uses a specially designed SainSmart Slicer.

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