This Heat Bed is Segmented heatbed with 9 individually controlled segments.
What makes it special?1. Energy saving:
Each bed segment can be discretely controlled with its own heater circuit, you no longer have to heat up the entire bed for smaller prints.
2. Heating evenly:
there are 3*3 separate zones each one have a thermistor that not only heating separately but also more even in heating than the normal print bed that have only one thermistor.
Hardware:
Bed Size:235*268*2mm
Print Size:220*220mm
Compatible with Creality ender3 serials.
Material: PCB FR4
Power input:24V
Power connector:XT60
Signal connector:I2C
Software:
communication protocol: Gcode,Sending heating Gcode M140 or M190,and then with G1 or G0 sending X and Y positon
for example:
M190 S60
G1 X100 Y10
it will heating the second Zone where the position (100,10) is.
Main board request:
any board which has 2 free GPIO and run Marlin firmware. configure the 2 GPIO as software I2C port to communicate with Panda BED with Gcode.
Marlin firmware:
the code for marlin firmware have been tested with boards which MCU are ESP32 and STM32, We will pull up to Marlin team later.
now the working firmware is here:https://github.com/markniu/PandaZHU