switches I can put anywhere. Running a UNO with a CNC shield. The homing routine works fine, so I know the inputs are all working. So I checked all of the wires and everything makes sense. When typing G0 X0 Y0 to find the machine origin, it does the same thing as before, maxing out the X travel and moving 2/3 up the Y. This is the bleeding edge. I followed the instructions here to the best of my ability putting the switches in the recommended location: https://wiki.eleksmaker.com/doku.php?id=extra_module, I enabled the homing feature in Grbl using $22=1. When I try to home the machine the Z axis travels up and when it contacts the Z -Axis home switch it continues into the frame and acts if the switcht is not detected. Postby wmgeorge » Wed Jun 22, 2016 4:49 pm, Postby Picengravertoo » Wed Jun 22, 2016 5:39 pm, Postby wmgeorge » Wed Jun 22, 2016 6:03 pm, Postby Picengraver » Wed Jun 22, 2016 6:18 pm, Postby wmgeorge » Wed Jun 22, 2016 6:26 pm, Postby Picengravertoo » Wed Jun 22, 2016 7:00 pm, Postby wmgeorge » Wed Jun 22, 2016 7:31 pm, Postby Picengravertoo » Wed Jun 22, 2016 7:46 pm, Postby wmgeorge » Wed Jun 22, 2016 7:48 pm, Postby wmgeorge » Wed Jun 22, 2016 7:52 pm, Users browsing this forum: No registered users and 4 guests. $131=265.000 Stepping Pulse – Pin 2-4 depending on the Axis(X,Y,Z) Limit Switches prevent the machine for over extending each axis and are connected to Pins 9-11. Limit Switches are used to let you software know when an axis has come close to or is at the limit of it's physical movement. Used when soft limits are enable to tell GRBL the maximum travel for each axis. 0 N N N to clone the Y axis. The rest of the commands follow more or less the same syntax. $101=80.000 I did narrow the problem down to just the x-axis limit switch. Feed rate used in the "Homing" cycle to locate the limit switches. It will work fine if vector engraving/cutting though. I am using a CNC Shield V3.0 and have added end stop micro switches to the X ,Y and Z axis. Relay output to switch cooling water. If I send '?' I enabled the homing feature in Grbl using $22=1. David Rodman December 12, 2020 at 12:54 pm. And positive for X is to the right? For Grbl v0.8 and v0.9+ with variable spindle disabled, Z-limit moves to D11 and spindle enable to D12. 2 N Y N Offline Controller: The 3018-PRO comes with an offline controller, you can manually adjust X, Y, Z-axis without connecting to the computer and download files. I use CNC shield version 3.0 and try to use GRBL 1.1 and the UGS. $122=5000.000 I have grbl cnc and my z axis limit not working and homing fail x and y limit working perfectly $0=10 (step pulse, usec) $1=25 (step idle delay, msec) $2=0 (step port invert mask:00000000) $3=6 (dir port invert mask:00000110) $4=0 (step enable invert, bool) $5=0 (limit pins invert, bool) $6=0 (probe pin invert, bool) $10=3 (status report mask:00000011) $11=0.020 (junction deviation, mm) … Page 30: Z-Axis Limit Switch 4.1.2 Z-Axis Limit Switch A. Do the same with the X axis next. Some G-code senders have an option to limit the Z-axis speed. As in many things in life, it wasn’t that simple. Nano 3Axis Control Board is a Arduino Nano based 3 Axises Motion control system, can be used. I can move the tabel but have problems withe the limit switches I rewired the wire from the Z + limit switch to SpnEnd. What I may do is just move the carriage to the middle of the table, change the $22 or 23 to enable the Homing and see what happens. When correctly set up, the ‘Grbl candle home’ function will home your machine to a predefined point, this can be used if your machine is equipped with limit/home switches. But X and Y Axis stops no problem. $11=0.020 I noticed after homing the laser and selecting “Get coordinates”, I see strange values (X: -429.00 Y: 219.00 Z: 0.00) This doesn’t make any sense to me. So without a true PWM controller like Jtech sells the Pic Laser will not work with my setup. 1 Y N N $3=1 2. Suddenly the Z axis referencing does not work. These instructions will explain how to wire the Limit Switches for X, Y and Z axis's. ONLY use Normally OPEN limit switches. The control board should be … But if I run homing cycle the axis won't stop when limit switch is pushed. 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