MK2B Heated Bed – Heating Base
The MK2B Heated Bed is based on Josef Prusa’s design for 3D RePrap printers.
The base is made of 3mm fiber and the 35μm copper layer is fused with the base (not added) to guarantee a uniform thermal diffusion.
It has a central hole that allows its installation in leveling bases of 3 points. The plate comes completely screen printed.
It has connection to 12V and 24V
Technical specifications of the MK2B Heated Bed
- Dimensions: 214mm x 214mmx
- 3mm fiber PCB
- Copper layer 35μm
- Color: Red background and white silkscreen
- Power supply: 12V or 24V
- Maximum current: 15 A
- Resistance: 1.0-1.2 ohm
- Silver copper holes
12V connection: one cable connected to 1, another cable connected to a 2.3 cable 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 disconnected), the resistance value of the two lines is 4.0Ω, the actual power is 24 * 24/4 = 144W.
The new version of the circuit, whether connected 12V or 24V, the power will stabilize at 144W.
Note: Use cables of suitable section, for its connection to the power supply, it is also recommended the use of a heatsink in the MOSFET of the controller board.