Geeetech Prusa I3: 3D Printer with Switchable Hotend


Geeetech Prusa I3

Even the best 3D printers currently available in Chinese online stores have at least one shortcoming: they print in one color only. The new Geeetech Prusa I3 mitigates this flaw by introducing an innovative solution of the interchangeable hotend (or nozzle head), using simultaneously two kinds of filament. Printing multicolor is now possible!

Geeetech Prusa I3: Features

Printing area280 x210x 200 mm
Printing resolution0.1 – 0.3 mm
Printing speed60-110 mm/s
Nozzle diameter0.4 mm
Filament typePLA, ABS
File format.STL,G-code
Extruder temperatureUp to 260°C
ConnectivityUSB, karta MicroSD
Size51.00 x 45.00 x 45.00 cm
Weight9.5 kg
Box contents1 x Zestaw DIY drukarki 3D

Geeetech Prusa I3: Features


  • Dual switchable hotend allows two-color printing and mixing of colors
  • Large workspace
  • LCD isplay allows offline printing from MicroSD card
  • High precision printing
  • Aluminum hotbed makes it easy to remove objects


  • Does not support more unusal types of filament
  • No WiFi module

Geeetech Prusa I3

How does the switchable hotend work?

Geeetech Prusa I3 uses a dual hotend system that can discharge two types of filament through one nozzle. This allows printing in alternating colors, according to the printer settings. The colors can also be mixed together, just like you would mix paint on the painter’s palette, which makes it possible to obtain a range of colors and gradients, that is smooth transitions between layers. What’s more, you can even set color mixing multiple times in one printed item. There are also 8 ready-made mixing patterns available for easy operation. A completely new GTM32 chipset is used, based on ARM Cortex M3 and STM32 processor that supervises the mixer or the interface controlling the amount of filament. Additionally, to protect against nozzle blockage with too much printing material, it is possible to set the OFP (Over Fused Protect) limit, which blocks the maximum filament feed value to 96% and the minimum to 4%.

Geeetech Prusa I3

Printing capabilities

With a working surface of 280 x 210 x200 mm I3 is certainly a device with a large printing field, which is bigger than most popular Prusa series 3D printer. High print accuracy ensures a layer resolution of 0.1-0.3 mm with a nozzle diameter of 0.4 mm. This allows to create some really detailed elements for a wide range of applications. You can even print machine elements or precise architectural models. Geeetech Prusa I3 also has a relatively high printing speed contained in the range of 60-110 mm/s, as well as the possibility of using PLA and ABS type filament materials. Device is controlled by a standard Repetier – Host software with support for popular G-Code and STL formats, so you can easily download files to print online.

Thanks to the LCD display, it is possible to print offline from files on the MicroSD card, so it’s not necessary to plug in computer to control I3. The menu is operated by the knob located next to the screen. Unfortunately, there is no wireless network connectivity, but you can buy a dedicated WiFi Geeetech module, which will allow you to print from the cloud, by using smartphone or tablet.

Geeetech Prusa I3

Construction and installation

It is a DIY kit, so before you start working, you should assemble the printer. Fortunately, it’s not complicated and even novice DIY enthusiasts will be able to deal with it in less than an hour. The printer should then be calibrated to obtain an optimal printout accuracy. The acrylic frame is very solid and in combination with an 8 mm thick aluminum alloy plate, it should last for years. The strong rods and stepper motor with 1.8° angle steps also make a good impression and contributes to precision of printing. Extruder can be heated up to 260 deg. C, which is typical for similar printers.

Geeetech Prusa I3


Geeetech Prusa I3 is the first 3D printer with a switchable hotend available on the GearBest, allowing you to print using two types of filament at the same time. This allows for entirely new capabilities, like multi-color or even multi-material printing. However, even if you won’t need to use this function, this device isworth buying, because it has a large print area, high layer resolution and easy offline controls. It’s available at GearBest and Banggood with Priority Line shipping worldwide at discounted price and we recommend this device to both beginners and advanced 3D printing enthusiasts.


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