Hi everyone, I have recently set up GRBL on an Uno with the CNC shield, everything seems to work except the spindle on and off, If i am understanding it correctly the spindle enable pins on the board send a 5v to a solid state relay i have set up for my spindle, the problem i am having is as soon as i power up my Uno its sending that 5V, I have tried M3 and M5 nothing changes, I send M03 and M05 nothing changes,, still getting the same 5V to the spindle enable pins.. Am i not understanding how or what the spindle enable pins work,, The text i have seen all say that M3 turns the spindle on and M5 Off so I figured M3 would enable the spindle enable pins with 5v and M5 would disable the 5v to the pins... Any help would be welcome,, thank you
M3S1000 S-word sets the PWM value. For SSR you cannot actually PWM so never set it to anything but S1000 (and assumed Grbls settings for Max Spindle RPM is set to 1000 too)
I'm trying to switch the DeWalt router on my C-Beam with an xPro v3 operated with the Openbuilds control. I have sent M3S1000 via the icon but the voltage reading I get is only 0.81v. I have set up the MOSFET and relay as shown on Github but the best I can get is the LEDs flickering and a bit of a stutter from the motor. Where am I going wrong? Previously I was switching the router manually but this seems crude given that the software can control a spindle and the hardware should be able to. Clearly I am missing something - any help would be very much appreciated.
