- Stock: Out of Stock
- Model: 3DSteel
HTA3D V2 Extruder
Pre-assembled kit without welds
Electronics Prepared with Firmware Loaded
PSU prepared, tested and calibrated
Assembled HTA3D v2 Extruder
Welded heated bed, with prepared connections and thermal insulation installed
Printed parts of the X axis prepared
Assembled LCD
The most significant features of 3DSteel
The original HTA3D 3DSteel is a Cartesian DIY 3D printer kit developed as an evolution of our P3Steel. It combines a 3 mm steel frame, HTA3D V2 direct-drive extruder, dual Z lead screws and a 12 V control system based on Arduino Mega, RAMPS 1.6+ and TMC2130 drivers. Its open construction makes the machine straightforward to understand, adjust and maintain component by component.
This is a different generation from the 3DSteel V2. The original uses 12 V and 8-bit electronics, while V2 uses 24 V, a 32-bit controller and TMC2209 drivers. Electrical parts and configurations must not be assumed interchangeable.
Open, serviceable mechanics
The print bed moves along Y, the direct-drive carriage travels along X and two motors with integrated T8×8 lead screws raise Z. Smooth rods guide the axes; reinforced GT2 belts and 20-tooth drive pulleys move X and Y. The HTA3D V2 extruder grips 1.75 mm filament from both sides and includes hotend and part-cooling fans, a mechanical filament-presence sensor and a 3DTouch probe. The probe helps compensate for small bed variations after proper mechanical setup; it does not replace assembly and calibration.
Documented configuration
| Motion | Cartesian, moving Y bed, direct-drive X carriage and dual-screw Z |
|---|---|
| Frame | 3 mm galvanised or 304 stainless steel, according to option |
| Electronics | Mega 2560-compatible board, RAMPS 1.6+, four SPI TMC2130 drivers and 12864 graphical LCD with SD reader |
| Homing | Sensorless X/Y and 3DTouch Z in the documented Marlin setup |
| Power | Nominal 12 V / 33 A supply, approximately 400 W |
| Heated bed | 220 × 220 mm aluminium MK3, 100 kΩ Beta 3950 NTC; print surface according to option |
| Filament | 1.75 mm, selected V6 hotend; documented configuration includes a 0.4 mm nozzle |
The 220 × 220 mm figure describes the bed, not an identical guaranteed usable area in every configuration. Glass clips and machine limits can reduce available space. Suitable material temperatures depend on the complete hotend, print surface, cooling and print profile.
Choose your configuration
- Frame: galvanised steel or 304 stainless steel.
- X/Y linear motion: eight LM8UU bearings or eight Igus DryLin RJ4JP-01-08 bushings. The documented Z axis retains four linear bearings.
- 1.75 mm V6 hotend: standard all-metal, PTFE-guided, all-metal with titanium heatbreak and brass block, or all-metal with bimetal heatbreak and brass block. Check the entire thermal assembly and firmware before using elevated temperatures; the PTFE variant needs particular temperature care.
- 220 × 220 mm print base: bare MK3 aluminium, tempered glass with clips, magnetic flexible PEI sheet, or magnetic flexible sheet with a BuildTak-type coating. A bare bed needs a suitable working surface. Recheck first-layer height and Z offset after changing surfaces.
Images show one representative combination. The selected frame, guides, hotend and surface define the actual configuration.
Partially prepared kit, still a DIY build
The documented kit has prepared subassemblies for the extruder, wired and insulated heated bed, covered power supply, parts of the X axis and LCD housing. You still assemble the frame and motion system, connect modules, verify wiring and carry out calibration. This is a project for learning how a printer works, not a fully assembled and calibrated machine.
The historical configuration includes six 8 mm motion rods —two 375 mm, two 350 mm and two 320 mm—, dual Z motors with integrated 310 mm T8×8 lead screws, POM nuts, GT2 belts, 12864 LCD, filament sensor, 3DTouch and cooling fans. Exact kit contents follow the selected options and the supplied production batch.
Firmware and first checks
The original setup uses Marlin on Mega/RAMPS with TMC2130 drivers in SPI mode. Sensorless homing applies to X and Y; the 3DTouch probe references Z. If a controller, driver, probe, bed or hotend has been replaced, identify the actual wiring and revision before loading any firmware file. Our historical Marlin update guide is a reference, not a universal configuration for modified machines.
Before printing, check that mains wiring is enclosed, terminals are secure, fans operate, both temperature sensors report plausible room temperature, axes move in the expected directions and homing stops correctly. After changing a nozzle, surface or hotend, check Z offset and the first layer. Inspect belt tension, pulleys, guides and wiring periodically.
Is it right for you?
Choose this model if you want to assemble and learn from an open steel-frame printer and maintain a familiar Marlin/Mega/RAMPS platform. Choose another model if you need a fully assembled printer or prefer to start with a 24 V, 32-bit system; see the 3DSteel V2.
For servicing this generation, see the HTA3D V2 extruder, RAMPS electronics enclosure and 3DSteel fastener kit. Check your printer's revision and selected options before ordering spares.
