The MK2B PCB Heated Bed is the industry-standard thermal printing surface for open-source 3D printers. A heated bed is critical for preventing warping and ensuring proper first-layer adhesion when printing with materials like ABS, PETG, and even standard PLA. This board features a clever dual-trace circuit layout, allowing you to choose between 12V and 24V operation simply by changing your solder wire connections on the power pads.
Dual Voltage Flexibility: Safely configure the board for either 12V or 24V power systems depending on your printers control board.
Uniform Heat Distribution: High-quality copper traces ensure edge-to-edge even heating, eliminating cold spots that cause print failures.
Pre-etched Center Hole: Features a central hole on the front side to easily mount an NTC 100K thermistor directly against the glass or print surface.
Durable FR4 Laminate: Built on industrial-grade fiberglass substrate to withstand hundreds of thermal cycles without warping.
| Feature | Specification |
| Model | MK2B Dual Power |
| Material | FR4 Fiberglass PCB (approx. 1.6mm thickness) |
| Dimensions (Total) | 214mm x 214mm |
| Active Printing Area | 200mm x 200mm |
| Resistance (12V) | Approx. 1.0 1.2 Ohms |
| Resistance (24V) | Approx. 3.0 4.0 Ohms |
| Power Consumption | ~120W to 140W |
| Color | Red with white silkscreen markings |
For 12V Operation: Solder the positive (+) wire to Pad 1, and the negative (-) wire to both Pad 2 and Pad 3 bridged together.
For 24V Operation: Solder the positive (+) wire to Pad 2, and the negative (-) wire to Pad 3. Leave Pad 1 disconnected.
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