Hi I have just built a workbee 1000mm x 750mm screwdrive and have an issue with the limit switches. The limit switches do not cut the motors. The switches nomaly show no hit and change to hit when pressed by hand. When trying to home the machine for the first time the Z switch gets hit and show in duet as being hit but the motor keeps turning. This happens on all 3 Axis, have I missed something obvious? Thanks Brian
Could you please post the contents of your config.g and customconfig.g files? I assume you have the black and red/orange user interface screen, and are homing using the buttons on the interface. Alex.
Hi Alex Please find information requested below. My interface is not the one you mentioned but I am trying to use the home buttons on the machine control tab. On the customconfig jog without homing is enabled to check motion was all running correct directions and smooth. On the line ; Configure Endstops M574 X2 Y2 Z2 S0; Set active low endstops I have tried changing to S1 with no difference Config.g ; Configuration file for Duet ; executed by the firmware on start-up ; WorkBee Firmware Version 1.0.7 ; Configure Connection - ENABLE ONLY ONE OF THE BELOW THREE ;M552 S1 ; Enable Wifi Network ;M552 S2 ; Enable Access Point Mode M552 S1 P192.168.2.12 ; Enable Ethernet - Change IP Address to suit ; - - - - - - - - - - - - - - - - - - - - ; DO NOT CHANGE ANY OF SETTINGS BELOW ; TO MAKE A CHANGE, COPY THE LINE OF CODE, PASTE IT INTO customconfig.g. THE CHANGE CAN THEN BE MADE IN customconfig.g ; ANY ADDITIONAL SETTINGS SHOULD BE PUT IN customconfig.g ; General preferences M453 ; Put the machine into CNC Modes M550 PWorkBee CNC Machine ; Set machine name G90 ; Set absolute coordinates ; Network M586 P0 S1 ; Enable HTTP M586 P1 S0 ; Disable FTP M586 P2 S0 ; Disable Telnet ; Configure Drives M569 P0 S0 ; Drive 0 goes forwards M569 P1 S1 ; Drive 1 goes forwards M569 P2 S0 ; Drive 2 goes forwards M569 P3 S1 ; Drive 3 goes forwards M584 X0 Y1:3 Z2 ; Apply drive mapping to axes ; Configure Axes M92 X400 Y400 Z400 ; Set steps per mm M350 X16 Y16 Z16 I1 ; Configure microstepping M566 X500 Y500 Z500 ; Set maximum instantaneous speed changes (mm/min) M203 X2500 Y2500 Z2500 ; Set maximum speeds (mm/min) M201 X150 Y150 Z150 ; Set accelerations (mm/s^2) M906 X2400 Y2400 Z2400 I100 ; Set motor currents (mA) ; Configure Axis Limits M208 X0 Y0 Z0 S1 ; Set axis minima M208 X550 Y770 Z94 S0 ; Set axis maxima ; Configure Endstops M574 X2 Y2 Z2 S0; Set active low endstops ; Other Settings M140 H-1 ; Disable heated bed M564 S1 H1 ; Disable jog commands when not homed M911 S21.0 R23 P"G91 G1 Z3 F1000" ; Configure power loss resume M501 ; Load Stored Parameters M98 Pcustomconfig.g ; Execute custom config settings Customconfig.g ; ADD ANY CUSTOM SETTINGS BELOW M564 S1 H0 ; Disable jog commands when not homed Interface
OK - looks as though you have updated the firmware, but you have missed the step to upload the user interface. Follow the instructions in the link below and let me know if that solves the problem. Alex. 3. Connecting, Updating and Configuring Your WorkBee
Hi Alex, I have updated the interface but still have the same issues. Switches shouw as not hit by default and change to hit when press by hand or when hit but the motors don't stop. Brian
Just checking - jogging works correctly - X +ve moves right, Y +ve moves back and Z +ve moves up, and homing moves in the same directions - up first then back and right. If the movements are in the correct directions could you check that the homing files have been uploaded correctly. Homeall.g should say ; homeall.g ; called to home all axes G91 ; relative positioning G21 ; Set units to mm G1 H1 Z94 F900 ; move quickly to Z axis endstop and stop there (first pass) G1 Z-3 F2400 ; go back a few mm G1 H1 Z94 F300 ; move slowly to z axis endstop once more (second pass) G1 H1 X1500 Y1500 F2400 ; move quickly to X and Y axis endstops and stop there (first pass) G92 X800 Y770 Z94 ; Set Home Position - change to your machine size. G1 X-3 Y-3 F2400 ; go back a few mm G1 H1 X1500 Y1500 F300 ; move slowly to X and Y axis endstops once more (second pass) G92 X800 Y770 Z94 ; Set Home Position please change to your machine size. G90 ; absolute positioning Homex.g ; homex.g ; called to home the X axis G91 ; relative positioning G21 ; Set units to mm G1 H1 Z94 F900 ; move quickly to Z axis endstop and stop there (first pass) G1 Z-3 F2400 ; go back a few mm G1 H1 Z94 F300 ; move slowly to z axis endstop once more (second pass) G1 H1 X1500 F2400 ; move quickly to X and Y axis endstops and stop there (first pass) G92 X800 Z94 ; Set Home Position please - to your machine size. G1 X-3 F2400 ; go back a few mm G1 H1 X1500 F300 ; move slowly to X and Y axis endstops once more (second pass) G92 X800 Z94 ; Set Home Position please - to your machine size. G90 ; absolute positioning homey.g ; homey.g ; called to home the Y axis G91 ; relative positioning G21 ; Set units to mm G1 H1 Z94 F900 ; move quickly to Z axis endstop and stop there (first pass) G1 Z-3 F2400 ; go back a few mm G1 H1 Z94 F300 ; move slowly to z axis endstop once more (second pass) G1 H1 Y1500 F2400 ; move quickly to X and Y axis endstops and stop there (first pass) G92 Y770 Z94 ; Set Home Position - change to your machine size. G1 Y-3 F2400 ; go back a few mm G1 H1 Y1500 F300 ; move slowly to X and Y axis endstops once more (second pass) G92 Y770 Z94 ; Set Home Position - change to your machine size. G90 ; absolute positioning and homez.g ; homez.g ; called to home the Z axis G91 ; relative positioning G21 ; Set units to mm G1 H1 Z94 F1500 ; move quickly to Z axis endstop and stop there (first pass) G92 Z94 ; Set Home Position - change to your machine size. G1 Z-3 F2400 ; go back a few mm G1 H1 Z94 F300 ; move slowly to X axis endstop once more (second pass) G92 Z94 ; Set Home Position - change to your machine size. G90 ; absolute positioning Alex.
Hi Alex All jog comands work in the correct direction Was slightly surprised machine homes to top right was expecting it to home top left My G92 commands are x550 y750 I presume this due to me having a 1000 x 750 machine Other than that all files are identical to yours Thanks Brian
Hi Brian, I am away from home with very limited Internet - will try to give a bit more help this evening/tomorrow (UK time). If the switches are responding to being hit by the gantries and the homing files are as they should be I'm at a bit of a loss at the moment. Alex.
Hi Alex. Thank you for all your help. I have stumbled across a fix. Pressing the set button for each axis in machine control appears to have solved the issue. Once again many thanks Brian
