Re: [Machinekit] Homing few question

[schoone...@btinternet.com]

Forget that, you haven't even shown the Z axis, I was reading Axis3, the A axis. However there is a good chance it is still the cause.  ( Or you have not touched off etc. ) On 14/01/17 07:12, schoone...@btinternet.com wrote: The Z axis moves in a negative direction, your config allows 200mm positive movement and only 1mm negative, so it will not move down. You need to reverse the figures (after checking what the physical movement limits are, may not be 200mm) On 13/01/2017 21:37, Andrij Senyk wrote: Hello, I have Proxxon mf 70 cnc-ready and limit switches are X+ Y+ Z+ I made next configuration [AXIS_0] # # Step timing is 40 us steplen + 40 us stepspace # That gives 80 us step period = 12.5 KHz step freq # # Bah, even software stepping can handle that, hm2 doesnt buy you much with # such slow steppers. # # Scale is 200 steps/rev * 5 revs/inch = 1000 steps/inch # # This gives a maxvel of 12.5/1 = 12.5 ips # TYPE = LINEAR MAX_VELOCITY = 50.0 MAX_ACCELERATION = 5.0 # Set Stepgen max 20% higher than the axis STEPGEN_MAX_VEL = 100.0 STEPGEN_MAX_ACC = 6.0 BACKLASH = 0.000 # scale is 200 steps/rev * 5 revs/inch SCALE = -160 MIN_LIMIT = -1.0 MAX_LIMIT = 150.0 FERROR = 1.0 MIN_FERROR = 0.25 HOME = 0.000 HOME_OFFSET = 0.00 HOME_IGNORE_LIMITS = YES HOME_USE_INDEX = NO HOME_SEQUENCE = 0 # Set to zero if you don't have physical home/limit switches # Set to the desired homing and latch velocity if you have switches # See: https://github.com/machinekit/machinekit-docs HOME_SEARCH_VEL = 10.0 HOME_LATCH_VEL = -10.0 # these are in nanoseconds DIRSETUP = 3000 DIRHOLD = 3000 STEPLEN = 3000 STEPSPACE = 3000 # ################ # X [0] Axis # ################ # axis enable chain newsig emcmot.00.enable bit sets emcmot.00.enable FALSE net emcmot.00.enable <= axis.0.amp-enable-out net emcmot.00.enable => hpg.stepgen.00.enable # position command and feedback net emcmot.00.pos-cmd <= axis.0.motor-pos-cmd net emcmot.00.pos-cmd => hpg.stepgen.00.position-cmd net motor.00.pos-fb <= hpg.stepgen.00.position-fb net motor.00.pos-fb => axis.0.motor-pos-fb # timing parameters setp hpg.stepgen.00.dirsetup        [AXIS_0]DIRSETUP setp hpg.stepgen.00.dirhold         [AXIS_0]DIRHOLD setp hpg.stepgen.00.steplen         [AXIS_0]STEPLEN setp hpg.stepgen.00.stepspace       [AXIS_0]STEPSPACE setp hpg.stepgen.00.position-scale  [AXIS_0]SCALE setp hpg.stepgen.00.maxvel          [AXIS_0]STEPGEN_MAX_VEL setp hpg.stepgen.00.maxaccel        [AXIS_0]STEPGEN_MAX_ACC #setp hpg.stepgen.00.step_type       0 # P8.9 setp hpg.stepgen.00.steppin          0x65 # P8.7 setp hpg.stepgen.00.dirpin           0x62 # invert the home input signals setp bb_gpio.p9.in-11.invert 0 setp bb_gpio.p9.in-13.invert 0 setp bb_gpio.p9.in-15.invert 1 # wire the home inputs net Xhome bb_gpio.p9.in-11 => axis.0.home-sw-in net Zhome bb_gpio.p9.in-13 => axis.1.home-sw-in net Yhome bb_gpio.p9.in-15 => axis.2.home-sw-in and in application I have HOME X- Y- Z- in Proxxon X- Y- Z+ X and Y are OK I mean moves without problem but Z I cannot move down. How to set homing to Z+? Next I have dividing head I configured A axis # ################ # A [3] Axis # ################ # axis enable chain newsig emcmot.03.enable bit sets emcmot.03.enable FALSE net emcmot.03.enable <= axis.3.amp-enable-out net emcmot.03.enable => hpg.stepgen.03.enable # position command and feedback net emcmot.03.pos-cmd <= axis.3.motor-pos-cmd net emcmot.03.pos-cmd => hpg.stepgen.03.position-cmd net motor.03.pos-fb <= hpg.stepgen.03.position-fb net motor.03.pos-fb => axis.3.motor-pos-fb # timing parameters setp hpg.stepgen.03.dirsetup        [AXIS_3]DIRSETUP setp hpg.stepgen.03.dirhold         [AXIS_3]DIRHOLD setp hpg.stepgen.03.steplen         [AXIS_3]STEPLEN setp hpg.stepgen.03.stepspace       [AXIS_3]STEPSPACE setp hpg.stepgen.03.position-scale  [AXIS_3]SCALE setp hpg.stepgen.03.maxvel          [AXIS_3]STEPGEN_MAX_VEL setp hpg.stepgen.03.maxaccel        [AXIS_3]STEPGEN_MAX_ACC #setp hpg.stepgen.03.step_type       0 # P8.14 setp hpg.stepgen.03.steppin          0x3A # P8.16 setp hpg.stepgen.03.dirpin           0x4E # home switches # invert the home input signals setp bb_gpio.p9.in-11.invert 0 setp bb_gpio.p9.in-13.invert 0 setp bb_gpio.p9.in-15.invert 1 #setp bb_gpio.p8.in-17.invert 1 # wire the home inputs net Xhome bb_gpio.p9.in-11 => axis.0.home-sw-in net Zhome bb_gpio.p9.in-13 => axis.1.home-sw-in net Yhome bb_gpio.p9.in-15 => axis.2.home-sw-in #net Ahome bb_gpio.p8.in-17 => axis.3.home-sw-in [TRAJ] AXES =                  4 COORDINATES =           X Y Z A MAX_ANGULAR_VELOCITY = 45.00 DEFAULT_ANGULAR_VELOCITY = 4.50 LINEAR_UNITS =          mm ANGULAR_UNITS =         degree CYCLE_TIME =            0.010 DEFAULT_VELOCITY = 20.00 MAX_LINEAR_VELOCITY = 10.00 [AXIS_3] # # Step timing is 40 us steplen + 40 us stepspace # That gives 80 us step period = 12.5 KHz step freq # # Bah, even software stepping can handle that, hm2 doesnt buy you much with # such slow steppers. # # Scale is 200 steps/rev * 5 revs/inch = 1000 steps/inch # # This gives a maxvel of 12.5/1 = 12.5 ips # TYPE =              ANGULAR MAX_VELOCITY =       50.0 MAX_ACCELERATION =   1000.0 # Set Stepgen max 20% higher than the axis STEPGEN_MAX_VEL =    240.0 STEPGEN_MAX_ACC =    3600.0 BACKLASH =           0.000 # scale is 200 steps/rev * 5 revs/inch SCALE =  -160 MIN_LIMIT =             -1.0 MAX_LIMIT =             220.0 FERROR =     1.0 MIN_FERROR = 0.25 HOME =                  0.000 HOME_OFFSET =           0.00 HOME_IGNORE_LIMITS =    YES HOME_USE_INDEX =        NO HOME_SEQUENCE =         0 # Set to zero if you don't have physical home/limit switches # Set to the desired homing and latch velocity if you have switches # See: https://github.com/machinekit/machinekit-docs HOME_SEARCH_VEL =       10.0 HOME_LATCH_VEL =        -10.0 # these are in nanoseconds DIRSETUP   =              200 DIRHOLD    =              200 STEPLEN    =              1000 STEPSPACE  =              1000 How to disable homing only for A axis. I try comment #setp bb_gpio.p8.in-17.invert 1 #net Ahome bb_gpio.p8.in-17 => axis.3.home-sw-in but this didnt solve the problem Next I have another cnc controller with arduino and GRBL and in Universal Gcode Sender present beautiful button - Reset Zero. I mean when I need drill something small I put material in center, move axis, set my zero position and start the program. Machinekit has the same implementation? -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to machinekit+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout. -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to machinekit+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout. -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to machinekit+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.