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Brand Elecfreaks Model PCB Heated Bed MK2a Quantity 1 Color Red + white Material FR4 Features Important part for assembling printer Specification Size: 214 x 214mm; FR4: 1.6+/-0.15mm; 2-layer£¬ 35m copper; Red soldermask: both sides; White silkscreen: both sides; Power input: 12V / 24V; Resistance: 1.0~1.2ohm Application Used to assemble 3D printer Other A central mounting hole on the front side allows three point mounting; Much easier for bed leveling in comparison to 4 point mounting; Installation: First level the side with two holes and fix in place£¬ then level the side with one hole; A glass plate is highly recommended to provide a truly flat surface and rigidity. Copper plated holes as shown in reprap wiki: reprap.org/wiki/PCB_Heatbed English Manual/Spec Yes (E-format) Packing List 1 x Heat bed board 1 x Resistor 2 x LED