RepRap MK2B 3D printers Dual Power PCB Heat Bed With 18AWG Cable

The RepRap MK2B 3D printer’s Dual Power PCB HeatBed, equipped with an 18AWG cable, is compatible with any 3D printer designed to accommodate the RAMPS MK2B version of the heatbed.

This heatbed boasts dual power capability, enabling operation with either a 12V or 24V power supply. It incorporates a centrally positioned mounting hole on its front side, facilitating three-point mounting, which simplifies the bed leveling process compared to four-point mounting systems.

To achieve optimal leveling, users are advised to first stabilize the side with two mounting holes before adjusting the side with one hole. The use of a glass plate is strongly recommended to ensure a uniformly flat surface and enhance structural rigidity. Moreover, the solder pads on this heatbed have been notably enlarged, facilitating easier installation and accommodating 1206 surface mount components. Nonetheless, it remains essential to implement proper strain relief measures during installation.

Connection:

12V connection: One cable connected to 1, another cable connected to a wire 2, 3 at the same time. At this time the resistance value of the two lines is 1.0 ~ 1.2Ω, the actual power is 144W.

24V connection: One cable connection 2, another line connected to 3 (1 unconnected), the resistance value of the two lines is 4.0Ω, actual power is 24 * 24/4 = 144W. The new version of the circuit, whether connected 12V or 24V, the power will stable at 144W.

Test Report:

12V connection: Current is 9.8A, as the temperature increases, the current drops to 8.8A (physical tips: resistance becomes larger as the temperature rises)
24V connection: The theoretical maximum current is less than 5A.  

Features:

1. 2 layer, 35μm copper.
2. Copper Plated Holes
3. Very good in combination with RUMBA or Taurino Power.
4. 18AWG cable.

Package Includes:

1 x RepRap MK2B 3D printers Dual Power PCB HeatBed With 18AWG Cable.