Duplicator 4s

The Duplicator 4S features our first dedicated 1.75 mm filament extruder. This extruder was designed from scratch, and contains a number of custom manufactured parts. We’ve learned a lot over our past extruder designs, and incorporated a lot of those lessons here: that’s why it’s smaller, lighter, and faster to build. And since it’s designed from the ground up for 1.75 mm filament, it’s light-years ahead of past designs in small-filament reliability.  


The layer alignment is much better which results in nicer prints and higher resolution.

We’ve completely overhauled the drive system to give the optimum positioning accuracy. The entire system has been upgraded to incorporate a sturdy 3/8″ diameter linear shaft. This is probably overkill, but you can trust that the axes will be sturdy. We’ve also switched to self-aligning, sintered stainless steel bearings. These are very forgiving to DIY assembly and provide a nice, smooth motion on the steel shafts. We’ve completely replaced the Z axis with a stepper driven, cantilevered stage. Guided by two of the linear shafts, this completely eliminates any Z wobble and results in nicely aligned layers. Using a high-angle lead screw, we were able to increase the speed of the Z axis from 150mm/minute to 1,000mm/minute. This means the layer changes are almost completely imperceptible.

Connect over USB and hit print — the machine will calibrate itself and start printing.

The new electronics have been designed to make the printing experience easier than ever. The Duplicator 4S connects to your computer via a standard USB cable thanks to a USB chip on the motherboard. We’ve also added stop support so that you never need to touch the XYZ axes ever again. When you hit print, the machine will automatically home itself, heat up, and begin printing. All you have to do is sit back and relax while your Duplicator 4S does all the work. Living in the future is awesome. Oh yeah, and the electronics are all inside, so you don’t have wires dangling everywhere.

Or you can print with an SD card. Sometimes we get failed prints when printing with a computer-USB link due to the computer sleeping or shutting down automatically. For this reason, we incorporated an SD card reader onto this printer. Now all your print jobs can be done via SD card. 

Tech Specs

Iterface     SD or USB Link

Max Printing Object Size   225*145*150mm

Cirtuit     5th generation,max support 5 motor

X,Y Axis Positioning Resolution 0.02mm

X,Y axis max speed 5000mm/minute

Z axis positioning resolution   0.005mm

Z axis max speed  1000mm/minute

Product dimension   320 x 466 x 382 mm | 12.6 x 18.4 x 15 in

Packing dimension   560*420*520mm

Material Support   ABS and PLA

Material Size   1.75mm wire

Material size requirement   1.75+-0.1mm

Temperature Sensor   thermocouple temperature sensors

Printing Object Specification

Position resolution   0.1mm

Layer     0.1mm -0.4mm

Vertical Printing Speed     15Cubic Centi-Meter/ Hour

Object Size     225 x 145 x 150 mm | 8.9 x 5.7 x 5.9 in

LCD displayer     Optional


Material Type     ABS, PLA

Color     Wanhao over 43 colors for choice

Filament size     1.75mm

1 Roll Filament weight     1kg

Components Specification

MK7 + Double Extruder     1 pc

Max temperature     260°C(500°F)

Printer Dimension     320 x 466 x 382 mm

Printer Weight     12KG

Electric Power Supply     220V / 110V ( Universal power supply, take IEC cable)

Output     200W

Software Format     STL, G code

Operation System     Windows 7, Vista, Linux, Mac, XP,

Compliance     GB, CE

Softwear     Replicator G( Both English and Chinese Edition)



The startup process of Wanhao #Duplicator4s
WANHAO Duplicator4S Kit Contents
WANHAO Duplicator4S Building out of box and removing objects