I am having trouble with the Homing cycle. Z axis first to home goes to the end stop without triggering the proximity switch. No alarm shown on the screen. The manual inputs and end stops all green. I am unable to trigger anything manually in the software. If I place a screwdriver in front of the switches they all trigger the Alarm. I am not sure what I have missed. Everything appears to be good it just doesn't home. I have been reading the GBRL definitions, could it be $23 which is set at 3. I tried setting it at 2 which my axis direction represent. but nothing changes. I am new to this so please be patient with me. I have also gone through the Open-builds Control software. On the Troubleshooting Tab the screen to the right details the firmware status. Mine displays communication. How do i access the other menu
in CONTROL use the Troubleshooting tab to make sure that the limit switches trigger, AND that they trigger the correct axis for each switch ie Z switch must show as Z in the troubelshooter, same with X and Y proximity switches sense metal, is a metal part moving close to the switch to be sensed? for directions 1 - make sure the tool jogs in the correct directions, Z+ is up, X+ is right, Y+ is away 2 - set the homing invert to make it home toward the switches. default is for the switch to be at + ends of travel, so that would be 'no invert'. Z limit must always be at top of travel, X and Y can be the other end if you really want to.
That's one of the problems I have In the troubleshooting Tab I click with the mouse on the switches but nothing happens they just stay Green. I have checked directions everything seems to be fine The switches work if I place a screwdriver blade in front of them.
I have just tried the buttons in troubleshooting the buttons show they have been clicked by the mouse but nothing happens. On the Home Invert I options for X,Y and Z showing Min or Max X and Y are set at Min Z is set at Max
Did you remember to load a machine profile (Grbl Settings tab > Select machine from the list) The profiles sets key things like ReportMasks etc that enables Troubleshooting to work (amongst others)
The limit switches are located looking at the front of the machine Left rear X Left rear Y. Going towards the limit switches X moves positive ie DRO numbers increase, Y moves negative DRO numbers decrease Z DRO numbers increase
I am referring to the Report Mask ($10=511), and things like Hard Limits, Pin Inversions etc. Post a Grbl Settings backup - we'll be able to see if you skipped the step if you can't remember
$10=511 ; Status report options, mask Report mask is correct, so Troubleshooting tab should reflect status of switches while testing $21=1 ; Hard limits enable, boolean Disable Hard limits just for a moment, lets get Homing working first. It might Alarm before you see the testing in Troubleshooting $5=0 ; Invert limit pins, boolean/mask $6=1 ; Invert probe pin, boolean That's a little non-standard, our Switches on our BlackBox needs $5=7, yours is set for NC switches - are you wired NC? If you have 3rd party switches and non standard wiring, thats the next thing to check then (pics of wiring) - or go standard and use our Switches $23=3 ; Homing direction invert, mask That says X Homing switch is on X Axis Minimum,Y Homing switch is on Y Axis Minimum and Z Homing switch is on Z Axis MAXIMUM (As it should be, you want to home Up and away from the stock for Z. XY doesn't really matter, whatever is convenient)
This is the switch I am using I followed the pinout info ton the blackbox black is trigger right side of the connector brown centre pin and blue gnd right hand pin. I can trigger a response using a metal blade but i have tried placing a knife blade on the Zaxis in close proximity of the switch pressing HOME the limit is ignored even if its triggered
$5=7 fixed that now i get an alarm 8 telling me to alter pull-up distance but whatever value i use seems to make no difference. Setting was 5 increased 10,15,20,30 Alters Z but still alarm 8. How high should i go?
$5=7 didn't fix it. It just showed all switches triggered. The pull up amount entered ie, 10,20,30 just raised the Z axis by that amount
Yes I changed to provide 24volts. I am going to methodically go through it today and try and find why its not working
I Have solved the problem with the Z axis not homing the design of the head prevented the switch triggering moving the switch solved the problem. No i have an issue with the X axis. Using jog mode it works ok. When its homing after Z the motor runs really rough not smooth like running in jog mode. I am not sure what to do to overcome this?
you dont click them, they change color when the state of the switch changes, sowhen you put metal at the sensor the color changes on the screen. work as in the indicator on the troubleshooting screen changes color or the indicator on the switch itself changes color? you need BOTH to work, AND you need the X switch to show as X on the screenm, and Y as Y and Z as Z
Hi, Finally sorted homing cycle in Z and X the problem was the limit switch wouldn't trigger. Both switches were poorly positioned so as not to trigger. Made some brackets and re-positioned the switches. Z and X work as designed. problem now Y axis will not Home it just doesn't move after X has Homed supposedly X and Y should move together but nothing happens . No indication as to why. No errors appear on the serial console everything says ok. Checked Wiring with multi meter and plugs all appear good. Any ideas would welcome
I have solved the issue I slowed the Axis down when I was having trouble with the limit switches. this was what caused the problem. Returning the values to their default settings overcame the issue. Sorry to have troubled you
