FluidNC laser/CNC controller board
Description
This board is mainly an IO board allowing: - to control 3 stepper motors (see later) - to detect 3 independant home switches - to apply PWM to the laser controller (see later) - to detect interlock door switches - to drive 4x220V relays for air assist, vacuum pump, water cooling and light - to read 3 more inputs It is controlled by FluidNC / GRBL firmware It's part of an open source open hardware project to retrofit an old Trotec laser engraver Project is here : https://hackaday.io/project/193893-retrofitting-an-old-laser-engraver PCB can be found on PCBWay shared projects : https://www.pcbway.com/project/shareproject/FluidNC_laser_controller_board_70101fd4.html
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