► Structure made of Steel

► Dual bowden extruder, with diferent temperatures, you can combine materials and colors in one print

► Heated bed and layer fan

► Printing volume 200x200x200mm

► LCD 128x64 in your language, with SD card reader

► Updated Marlin 1.1.8

► Quick filament change command M600 or from the LCD, very useful for multi colour printing

► Semi auto platform leveling integrated on the LCD 

► 30/33 Amperes Power Supply, with lighted switch and safety terminarls on the connections

► Assembly tutorial step by step on video



This kit contains the necessary parts to build the P3STEEL redesigned by HTA3D.

Due to its performance this is the model we use for our printings.


Printing volume: 200x200x200 (XYZ).

Maximum printing speed recommended: 160x160x3 mm/s.

Compatible with all 1.75mm filaments that print under 300ºC (or 245ºC if you prefer the extruder with teflon).

Resolution: 6,25 microns in X and Y, 0.125 microns in Z.

Compatibility with nozzles from 0.2mm to 1mm (0.20 0.25 0.30 0.35 0.40 0.50 0.60 0.80 and 1.00). We recommend intermediate values if it is your first 3d printer (0.4 is ideal).



  • Every axis has its endstop clearly indentified in its position. In addition, we use endstops with LED indicator, already welded and wired.

  • Cable holder chain for X axis.

  • F624zz bearings for the X and Y axis and tensioners.

  • Assembly instructions detailed on video (see tab "Assembly Tutorial").

Error Corrections:

  • No dead zones, such as the upper side of X axis generated in others versions

  • Fixed the problem with the nut that collided Y motor 

  • Fixed the problem for which the belt of the Y axis stayed bad alligned and generated unwanted tensions

  • Changed the parts that fastened the Y carriage bearings for others that don't deform the bearings, they can't lave their position and they are easier to install. 

HTA3D Dual Extruder:

  • Mk8 Pulley, made of stainless steel, provides a very accurate and powerful extrusion

  • Duañ Hotend V6, ensures greater control over temperature, as well as outstanding performance

  • Its location provides us a great advantage in Z and minimizes the oscillations

  • Layer fan included

  • Recommended retraction: from 3mm to 30mm/s

Y Carriage lightened:

  • Lightened the weight of this part, decreasing the weight in 300 grams.

  • The Heatbed is now easily calibrated using only one hand, and thanks to the self locking nuts it will stay calibrated during many printings

Filament support integrated:

  • This component is very important as it has a considerable impact on the print quality. Our system includes bearings 608ZZ, which avoids filament jerks and provides a fluid filament supply from start to finish

Electronic Box:

  • The electronic is protected from accidental contact, and well refrigerated thanks to a 6cm diameter fan.

Case for the LCD (LCD included):

  • Forget about having the printer attached to the computer, you will print independently and will have a total control over the printing.

Protector for the power supply terminals, with switch:

  • We have taken care of every detail of this kit, so with this simple component you can turn off and on the printer easily and safely.

Dimensions and weight of the 3D Printer:

The weight of the printer may vary depending on the chosen components and extras. For a basic configuration the weight is approximately 12 kg.

The outer dimension of the printer is approximately: 47x38x60 cm (having into account a standar coil of filament). We have to bear in mind also that the Y axis (38cm) moves, so it needs some space at the rear and at the front of the printer.

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  1. Galvanized steel  frame (3mm)

  2. Threaded and Smooth Rod Kit

  3. Printed Parts

  4. Electronic

  5. Movement Kit 

  6. Nuts and Bolts Kit

  7. Available Options

1. Galvanized steel frame (3mm):

Laser cutting of a high-quality galvanized steel sheet, according to our redesign, with the following improvements:

  • Dramatically lightened the Y axis carriage, in order to improve dynamic behavior.

  • Filament support included.

  • Fixed the problem with the upper left side (the extruder collided with it), and also the problem of the nut that collided with Y axis motor.

  • Modified the distance between the two pieces that make the Y axis tensioner, so as to hold the F624zz bearings with washers. Also, modified the hole diameter. 

  • Y axis measures 350mm now, the extra 9mm are added on the front side. 

  • Y axis bearing holder and Y axis belt holder are replaced by printed parts, as the metalic parts caused troubles.

2. Theaded and Smooth Rod Kit: 

  • 2x 375mm Smooth Rods – Stainless Steel

  • 2x 350mm Smooth Rods – Stainless Steel

  • 2x 320mm Smooth Rods – Stainless Steel

  • 2x 300mm M5 Threaded Rods – Stainless Steel (When Z Axis: M5 is selected) / 2x 300mm T8x8 Threaded Rods – Stainless Steel (When Z Axis: Leadscrews is selected)

  • 1x Smooth Rod for filament support

The cutting is done by hand, so that the meassure can be slightly higher (+ 1mm or similar) not lower. All rods are shipped without burr and the edges filed down properly.

3. Printed Parts:

  • Extruder (1,75mm):

    • 2x Body

    • 2x Extruder Idler

    • Hotend support

    • Layer fan 4020 support

  • X axis:

    • X Motor and X ilder, with tensioner for F624zz bearing

    • X axis carriage

    • X axis endstop support

  • Y axis:

    • Belt holder

    • Lm8uu holder

    • Separators for motors

    • Corners for calibrating the Heatbed

    • Y axis endstop support

  • Z axis:

    • Z Axis upper side for MR105zz

    • Z axis endstop support

  • Box for Ramps 1.4

  • Additional MOSFET module support

  • LCD Case

  • Cover for power supply

*You can choose the colour, otherwise, we will ship them randomly.

4. Electronics

  • Mega 2560 R3 (Compatible) 16u2

  • Ramps 1.4 (with aluminium heatsink)

  • Stepper Motor Driver DRV8825 x 5 (with heatsinks and thermal double-sided tape)

  • Mosfet module

  • Heated Bed MK2B (12v/24v) (or the version you choose)

  • Termistor 100k Ω  NTC 3950  (1m wire)

  • 6x Stepper Motor Nema 17 - 17HS4401 or  4x 17HS4401 + 2x 17HS4401s-T8x8-310MM (as option)

  • 3x Mechanical Endstop (wired)

  • 1x Fan 4020 (layer fan)

  • 1x Fan 6010 for electronics

  • 1x Hotend All Metal V6 Dual equipped with two ceramic heaters, with two thermistors, two bowden tube with connectors and 3010 fan. Nozzle at your choice

  • 12v 30/33a DC Power Supply with switch, printed part, 1mm2 wire y power adapter

  • LCD with rotary encoder, SD reader and adapter for Ramps

  • Kapton Tape15mmx33m 
    Insulating tape resistant to high temperatures, highly recommended, as it serves to insulate the connectios (for example the Heated Bed) and to hold cables.

  • Thermal Insulation for Heated Bed
    Increases the rate of heating of the bed, reduces energy consumption, and protects the electronics
    (We recommend to isolate with kapton the part in contact with the Heated Bed)

  • 50cm shrinkable 2mm2

  • HeatBed wires (1mm2)

  • Fan wires

  • 1x 3 Pin dupont wire

  • 1m protection for cables (spirals) and cable ties

5. Movement Kit:

  • 12x Linear bearings LM8UU or 12X IGUS DRYLIN® RJ4JP 01-08

  • 4x Angular bearings F624zz (for X and Y)

  • 2x Bearings Mr105zz for extruder and 2x for Z axis when "M5 version is chosen"

  • 2x Bearingss 608zz for extruders

  • 2x Couplers Shaft 5x5mm (for Z axis when "M5 version is chosen") / 2x Couplers Shaft 5x8mm (for Z axis when "Leadscrews version is chosen")

  • 2m Belt GT2, made of neoprene with reinforcerd fiberglass

  • 2x GT2 Pulley, 20 teeth, aluminium

6. Nuts and Bolts Kit:

  • 2x Mk8 extruder pulley for 1.75mm

  • Screws:

    • M3x8   - 21 units

    • M3x12 - 69 units

    • M3x16  - 9 units

    • M3x20 - 8 units

    • M3x25 - 12 units

    • M3x30 - 4 units + 1 fully threaded

    • M3x35 - 4 units (with spring and 2 washers)

    • M4x6 - 4 units

    • M4x20 - 3 units

    • M4x25 - 9 units

    • M8x20 - 2 units

  • Washer:

    • 4x M3 DIN 9021

    • 12x M3 self locking

    • 4x M4

  • Nust:

    • 61x M3 self locking

    • 20x M3 normal

    • 1x M4 self locking

    • 7x M4 normal

    • 2x M5 Nylon (Only on M5 version)

  • Extra:

    • 4 x Springs for Heated Bed

Dimensions and weight of the packaging:


The weight of the kit may vary depending on the chosen components and extras. For a basic configuration the weight is approximately 12kg and the packaging dimensions from 40x40x20cm.

  1. We are manufacturers:
    • Buying from us you make sure you are buying at the best price of the market, as you avoid intermediaries that make the product more expensive. 
    • We perform the quality control of our components and we choose the best manufacturers, priorizating national and European manufacturers. 
  2. We choose the best components by default. This kit includes by default components such as: 
    • 30/33A Power Supply. Forget about cheap power supplies with insufficient power, that in the long run cause troubles. 
    • DRV8825 Drivers by default, in other kits the final cost if choosing this drivers increases, which are more silence and powerful that the A4988 drivers.
    • LCD with graphics and text in your language*1128x64 pixels, backlit , with SD reader and potentiometer, by default. 
  3. We take care of the last detail:
    • LCD and Ramps 1.4 cases. You will avoid overheating problems thanks to the silence 6010 fan for the Ramps 1.4. 
    • Power Supply case  with switch and terminals for the connections. It is not only a very practical improvement, but also it improves the security using the printer. 
    • Cable holder chain for X axis as default, it improves not only the aesthetic of the printer as it hides a great part of the wires, but also it prevents from pullings on the X axis wires. 
  4. We offer the best Customer Support: 
    • For us the Customer Support starts before the purchase, the Assembly Video Tutorials are available so you can see the assembly process even before of the purchase, we don't hide anything from you.
    • We send the electronic with the drivers calibrated and the firmware uploaded, without extra cost, in order to make the assembly easier. 
    • We answer any question before and after the purchase. Do you want to check it? We invite you to ask us any question you may have using our contact form, we will answer them as soon as possible. 
  5. Secure shopping:
    • We offer PayPal and RedSys as secure payment platforms. We don't charge commissions to use them, forget about unpleasant surprises.
    • We work with the main transport companies, in a national and international level. We have the most competitive rates, and we package the products using first quality packaging so you don't need to worry about them. If any componet got damaged during the transport, we would replace it.


*1: We choose a language among the available, the customer can choose the language leaving a note on the purchase: 

* en English * pl Polish * fr French * de German * es Spanish * ru Russian * it Italian * pt Portuguese * pt-br Portuguese (Brazil) * fi Finnish * an Aragonese * nl Dutch * ca Catalan * eu Basque-Euskera * cn Chinese * jp Japanese (Katakana) * cz Czech

Assembly Tutorial (Spanish with English subtitles):  

Important: We recommend reading the instructions in this tab completely, in addition to following the assembly from here since we have included additional information to the videos.


  • Thermistors have now dupont connector, no soldering required.
  • Stepper motors include cable connector on base. In addition, we ship them with the wires in the correct order for Ramps 1.4. So you do not have to change the order.
  • Marlin updated to 1.1.0 RC 7 version:
    • Improved filament change system from the LCD or using command M600
    • Bed leveling function optimized, get easily a perfect first layer.
    • Small bugs fixed, now more information is displayed on the LCD.

Frequently asked questions:

  • How all fans are connected to the printer?
    ​Fans are connected as follows:
    • Layer fan: connected to MOSFET module as indicated in the video
    • Hotend fan: connected directly to 12V through the feeding of the module MOSFET as indicated in the video. This connection can be done as well connected to directly to the Power Supply. 
    • Electronics Fan: connected directly to the output of 12V in RAMPS (the connection we find down the X axis stepper driver) as shown on video. This connection can be done as well connected to directly to the Power Supply. 
  • The extruder motor does not move when I try to move it from the LCD.
    Marlin has a protection to prevent accidental movement, so the extruder will not move with temperatures under 170°C. Try heating the hotend over this temperature and the extruder will move

Assembly drawings:

Xmotor, Leadscrews version:

X idler, Leadscrews version:



Connection Diagram of RAMPS 1.4:

Order and Orientation of the Stepper Motor wires:

  • Keep the colour order of the wire; the RED wire goes DOWNWARDS when connecting to the RAMPS.


Additional considerations:

  • Connect limit switches as indicated in the video or scheme, an incorrect connection can damage the Mega board.

If during installation you have any question, please feel free to contact us. We are here to help you!

Free Filament Samples

Three free filament samples: ABS, PLA and PETG until 7th January (Total: 150g approx. Random colours).


The preparation time is only 24 - 72h

  • Views: 16319
  • Brand: HTA3D
  • Product Code: P3STEEL-DUAL
  • Availability: In Stock
This offer ends in:
  • 530.00€
  • 333.00€
  • Ex Tax: 275.21€

Available Options

Tags: P3Steel, 1.75mm,

Frame, it is the main component of the printer structure and provides the rigidity and stability: 

Z Axis,  it is the axis that performs the vertical movement, it has a great repercussion in the layer precision: 

Hotend Dual Configuration, it is the element that melts the filament. As it is dual, you can choose a configuration for each hotend or the same for both: 

Nozzle, it the extreme of the extruder, and defines the thickness of the filament being extruded: 

We offer a wide range to choose from for your application, nozzles around 0.4mm are the most popular choices. Smaller diameters provide higher resolution and larger diameters print faster and stronger parts

Nozzle, it the extreme of the extruder, and defines the thickness of the filament being extruded: 

We offer a wide range to choose from for your application, nozzles around 0.4mm are the most popular choices. Smaller diameters provide higher resolution and larger diameters print faster and stronger parts

Printing Surface, it heats up the surface so the filament can adhere to it easily: 

Ramps (RepRap Arduino Mega Pololu Shield), it is the electronic component that controls the printer power: 

Lineal Movement:

You can add some extras for your kit. We recommend the borosilicate tempered glass, as it is the perfect 3D printing surface, it is very flat, resistant and easy to clean 


Kit - DIY - Uploaded firmware and calibrated stepper motor drivers: without any extra cost, we assemble your electronic, uploaded the firmware and calibrate the stepper motor drivers ¡just to make it easier for you! 

We do it based on the chosen configuration, we can also upload the firmwate in the language you prefer (just leaving a note with the purchase or emailing us to info@hta3d.com. By default, it will be uploaded in the official language of the destination country. 

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