I just finished assembling my black box 4x controller. I have 24vdc power supplied, I have the switch turned on, I have the nema 17 motors wired, I have limit switches wired. On the trouble shooting tab, I see the switches change state, but the motors do not turn, I see the numbers on the Openbuilds Control change, but the motors don't move. I've tried everything I can think of. Any help? Also, the fan on the black box doesn't run, I don't know if that runs off a thermal switch or if it should be on. I have the power supply on, I've checked to make sure there is 24 vdc at the terminals on the Black Box (terminals PSU). Any help would be appreciated.
Check that you have a machine profile loaded and saved to the controller, from Grbl Settings, or if its a custom machine, make sure you have at least $4=1(Enabled) and $1=255 set in Grbl Settings
I opened Oprnbuilds Control, From the GRBL tab, I selected an arco machine with 2 axis. Flashed the firmware, and nothing. When I plug the USB in, the the Motors Enabled lightrs up green, and the USB icon flashes. Nothing else lights up on the Black Box, the fan doesn't run. If I unploug the USB cable, and turn on the 24 vdc power supply, nothing of the black box is lit up, no indication of it recieving power.
Sorry about the typo's I'm using a surface, small keyboard. When I try to jog the x and y axis, the numbers on the Openbuilds Control increment, but hte motor isn't moving. Shouldn't these match?
Good clue therein that there is no 24v present on the BlackBox - fan is directly connected to the incoming 24v - check wiring polarity on input terminal - check that there is 24v present - check that the wiring is solidly in the terminal, not pinching insulation - check the connector is pushed in all the way - push nice and hard to ensure it seats all the way in - check fuse - check that power switch is ON Grbl is sending the signals, the drivers just doesnt have 24v power to make the motors move The drivers need $4=1, and Power, that's all. But seeing as the Fan doesn't spin (new info) then it points to power, not Grbl settings
you da man..... I had the wrong 2 prong terminal wired for the 24 vdc power. I have motors moving.... who hoo.... what I'm trying to do is use my two limit switches as home switches, so on poweer up, the motors seek out the switches to determine x-0 and y-0. do I need to do this or once 0,0 is determined even if power is removed, it maintains it powition? Do I create a machine home routine? What I'm trying to make is a zen table (simple x/y cartesian motion control).
Read the Grbl Wiki gnea/grbl - well worth the time and effort, it is a GOLDMINE of information Grbl has a default homing routine: Z first, then XY (at the same time) but, as you mention you flashed our Acro firmware, that does XY only While power is off things can move around. Home every time. In fact Grbl will enter Alarm mode on bootup to remind you to Home Remember, homing sets MACHINE COORDINATES. You have to set your Work Coordinates using the Setzero buttons, or G10 commands. Homing to Work Coord offsets persists through power cycles, but relies on Homing to re-establish both to the Physical world. Most Gcode runs relative to the Work coordinates
Thank you so much. I was really getting frustrated, I checked the 24 volt power several times. I have two black box 4x units, I tried both, and neither one worked. I was unplugging the terminals, and plugging them into the new controller. After your reply, I pulled the wire and noticed how far apart the posts were. Details, details... Thanks again for your help.
