6wire 2phase 5Volt Steppers With Tiny G

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  • July 22, 2021 at 12:44 am #12032
    akfreak
    Member

    [fb] firmware build 440.20
    [fv] firmware version 0.97
    [hp] hardware platform 1.00
    [hv] hardware version 8.00
    [id] TinyG ID 2U2971-QKG
    [ja] junction acceleration 2000000 mm
    [ct] chordal tolerance 0.0100 mm
    [sl] soft limit enable 0
    [st] switch type 1 [0=NO,1=NC]
    [mt] motor idle timeout 2.00 Sec
    [ej] enable json mode 0 [0=text,1=JSON]
    [jv] json verbosity 5 [0=silent,1=footer,2=messages,3=configs,4=linenum,5=verbose]
    [js] json serialize style 1 [0=relaxed,1=strict]
    [tv] text verbosity 1 [0=silent,1=verbose]
    [qv] queue report verbosity 0 [0=off,1=single,2=triple]
    [sv] status report verbosity 1 [0=off,1=filtered,2=verbose]
    [si] status interval 500 ms
    [ec] expand LF to CRLF on TX 0 [0=off,1=on]
    [ee] enable echo 0 [0=off,1=on]
    [ex] enable flow control 1 [0=off,1=XON/XOFF, 2=RTS/CTS]
    [baud] USB baud rate 5 [1=9600,2=19200,3=38400,4=57600,5=115200,6=230400]
    [net] network mode 0 [0=master]
    [gpl] default gcode plane 0 [0=G17,1=G18,2=G19]
    [gun] default gcode units mode 1 [0=G20,1=G21]
    [gco] default gcode coord system 1 [1-6 (G54-G59)]
    [gpa] default gcode path control 2 [0=G61,1=G61.1,2=G64]
    [gdi] default gcode distance mode 0 [0=G90,1=G91]
    [1ma] m1 map to axis 0 [0=X,1=Y,2=Z…]
    [1sa] m1 step angle 1.800 deg
    [1tr] m1 travel per revolution 3.1750 mm
    [1mi] m1 microsteps 8 [1,2,4,8]
    [1po] m1 polarity 1 [0=normal,1=reverse]
    [1pm] m1 power management 2 [0=disabled,1=always on,2=in cycle,3=when moving]
    [2ma] m2 map to axis 1 [0=X,1=Y,2=Z…]
    [2sa] m2 step angle 1.800 deg
    [2tr] m2 travel per revolution 3.1750 mm
    [2mi] m2 microsteps 8 [1,2,4,8]
    [2po] m2 polarity 1 [0=normal,1=reverse]
    [2pm] m2 power management 2 [0=disabled,1=always on,2=in cycle,3=when moving]
    [3ma] m3 map to axis 2 [0=X,1=Y,2=Z…]
    [3sa] m3 step angle 1.800 deg
    [3tr] m3 travel per revolution 1.5000 mm
    [3mi] m3 microsteps 8 [1,2,4,8]
    [3po] m3 polarity 0 [0=normal,1=reverse]
    [3pm] m3 power management 2 [0=disabled,1=always on,2=in cycle,3=when moving]
    [4ma] m4 map to axis 2 [0=X,1=Y,2=Z…]
    [4sa] m4 step angle 1.800 deg
    [4tr] m4 travel per revolution 2.1166 mm
    [4mi] m4 microsteps 8 [1,2,4,8]
    [4po] m4 polarity 1 [0=normal,1=reverse]
    [4pm] m4 power management 2 [0=disabled,1=always on,2=in cycle,3=when moving]
    [xam] x axis mode 1 [standard]
    [xvm] x velocity maximum 65000 mm/min
    [xfr] x feedrate maximum 16000 mm/min
    [xtn] x travel minimum 0.000 mm
    [xtm] x travel maximum 482.600 mm
    [xjm] x jerk maximum 5000 mm/min^3 * 1 million
    [xjh] x jerk homing 10000 mm/min^3 * 1 million
    [xjd] x junction deviation 0.0100 mm (larger is faster)
    [xsn] x switch min 0 [0=off,1=homing,2=limit,3=limit+homing]
    [xsx] x switch max 0 [0=off,1=homing,2=limit,3=limit+homing]
    [xsv] x search velocity 3000 mm/min
    [xlv] x latch velocity 100 mm/min
    [xlb] x latch backoff 10.000 mm
    [xzb] x zero backoff 2.000 mm
    [yam] y axis mode 1 [standard]
    [yvm] y velocity maximum 16000 mm/min
    [yfr] y feedrate maximum 16000 mm/min
    [ytn] y travel minimum 0.000 mm
    [ytm] y travel maximum 304.800 mm
    [yjm] y jerk maximum 5000 mm/min^3 * 1 million
    [yjh] y jerk homing 10000 mm/min^3 * 1 million
    [yjd] y junction deviation 0.0100 mm (larger is faster)
    [ysn] y switch min 0 [0=off,1=homing,2=limit,3=limit+homing]
    [ysx] y switch max 0 [0=off,1=homing,2=limit,3=limit+homing]
    [ysv] y search velocity 3000 mm/min
    [ylv] y latch velocity 100 mm/min
    [ylb] y latch backoff 10.000 mm
    [yzb] y zero backoff 2.000 mm
    [zam] z axis mode 1 [standard]
    [zvm] z velocity maximum 1000 mm/min
    [zfr] z feedrate maximum 1000 mm/min
    [ztn] z travel minimum -31.750 mm
    [ztm] z travel maximum 0.000 mm
    [zjm] z jerk maximum 50 mm/min^3 * 1 million
    [zjh] z jerk homing 1000 mm/min^3 * 1 million
    [zjd] z junction deviation 0.0100 mm (larger is faster)
    [zsn] z switch min 0 [0=off,1=homing,2=limit,3=limit+homing]
    [zsx] z switch max 1 [0=off,1=homing,2=limit,3=limit+homing]
    [zsv] z search velocity 1000 mm/min
    [zlv] z latch velocity 100 mm/min
    [zlb] z latch backoff 10.000 mm
    [zzb] z zero backoff 3.000 mm
    [aam] a axis mode 3 [radius]
    [avm] a velocity maximum 25920 deg/min
    [afr] a feedrate maximum 12960 deg/min
    [atn] a travel minimum -1.000 deg
    [atm] a travel maximum -1.000 deg
    [ajm] a jerk maximum 324000 deg/min^3 * 1 million
    [ajh] a jerk homing 324000 deg/min^3 * 1 million
    [ajd] a junction deviation 0.1000 deg (larger is faster)
    [ara] a radius value 5.3052 deg
    [asn] a switch min 1 [0=off,1=homing,2=limit,3=limit+homing]
    [asx] a switch max 0 [0=off,1=homing,2=limit,3=limit+homing]
    [asv] a search velocity 2000 deg/min
    [alv] a latch velocity 2000 deg/min
    [alb] a latch backoff 5.000 deg
    [azb] a zero backoff 2.000 deg
    [bam] b axis mode 0 [disabled]
    [bvm] b velocity maximum 3600 deg/min
    [bfr] b feedrate maximum 3600 deg/min
    [btn] b travel minimum -1.000 deg
    [btm] b travel maximum -1.000 deg
    [bjm] b jerk maximum 20 deg/min^3 * 1 million
    [bjd] b junction deviation 0.0100 deg (larger is faster)
    [bra] b radius value 1.0000 deg
    [cam] c axis mode 0 [disabled]
    [cvm] c velocity maximum 3600 deg/min
    [cfr] c feedrate maximum 3600 deg/min
    [ctn] c travel minimum -1.000 deg
    [ctm] c travel maximum -1.000 deg
    [cjm] c jerk maximum 20 deg/min^3 * 1 million
    [cjd] c junction deviation 0.0100 deg (larger is faster)
    [cra] c radius value 1.0000 deg
    [p1frq] pwm frequency 100 Hz
    [p1csl] pwm cw speed lo 1000 RPM
    [p1csh] pwm cw speed hi 2000 RPM
    [p1cpl] pwm cw phase lo 0.125 [0..1]
    [p1cph] pwm cw phase hi 0.200 [0..1]
    [p1wsl] pwm ccw speed lo 1000 RPM
    [p1wsh] pwm ccw speed hi 2000 RPM
    [p1wpl] pwm ccw phase lo 0.125 [0..1]
    [p1wph] pwm ccw phase hi 0.200 [0..1]
    [p1pof] pwm phase off 0.100 [0..1]
    [g54x] g54 x offset 0.000 mm
    [g54y] g54 y offset 0.000 mm
    [g54z] g54 z offset 0.000 mm
    [g54a] g54 a offset 0.000 deg
    [g54b] g54 b offset 0.000 deg
    [g54c] g54 c offset 0.000 deg
    [g55x] g55 x offset 145.000 mm
    [g55y] g55 y offset 160.000 mm
    [g55z] g55 z offset 0.000 mm
    [g55a] g55 a offset 0.000 deg
    [g55b] g55 b offset 0.000 deg
    [g55c] g55 c offset 0.000 deg
    [g56x] g56 x offset 0.000 mm
    [g56y] g56 y offset 0.000 mm
    [g56z] g56 z offset 0.000 mm
    [g56a] g56 a offset 0.000 deg
    [g56b] g56 b offset 0.000 deg
    [g56c] g56 c offset 0.000 deg
    [g57x] g57 x offset 0.000 mm
    [g57y] g57 y offset 0.000 mm
    [g57z] g57 z offset 0.000 mm
    [g57a] g57 a offset 0.000 deg
    [g57b] g57 b offset 0.000 deg
    [g57c] g57 c offset 0.000 deg
    [g58x] g58 x offset 0.000 mm
    [g58y] g58 y offset 0.000 mm
    [g58z] g58 z offset 0.000 mm
    [g58a] g58 a offset 0.000 deg
    [g58b] g58 b offset 0.000 deg
    [g58c] g58 c offset 0.000 deg
    [g59x] g59 x offset 0.000 mm
    [g59y] g59 y offset 0.000 mm
    [g59z] g59 z offset 0.000 mm
    [g59a] g59 a offset 0.000 deg
    [g59b] g59 b offset 0.000 deg
    [g59c] g59 c offset 0.000 deg
    [g92x] g92 x offset 0.000 mm
    [g92y] g92 y offset 0.000 mm
    [g92z] g92 z offset 0.000 mm
    [g92a] g92 a offset 0.000 deg
    [g92b] g92 b offset 0.000 deg
    [g92c] g92 c offset 0.000 deg
    [g28x] g28 x position 0.000 mm
    [g28y] g28 y position 0.000 mm
    [g28z] g28 z position 0.000 mm
    [g28a] g28 a position 0.000 deg
    [g28b] g28 b position 0.000 deg
    [g28c] g28 c position 0.000 deg
    [g30x] g30 x position 0.000 mm
    [g30y] g30 y position 0.000 mm
    [g30z] g30 z position 0.000 mm
    [g30a] g30 a position 0.000 deg
    [g30b] g30 b position 0.000 deg
    [g30c] g30 c position 0.000 deg

    July 22, 2021 at 12:48 am #12033
    akfreak
    Member

    I cant seem to post a photo here (I tried the IMG tag but the image would not display, below is a link to an image of the CoolTerm Settings

    https://www.4shared.com/s/fwz1SVT0Tiq

    • This reply was modified 3 years, 3 months ago by akfreak.
    • This reply was modified 3 years, 3 months ago by akfreak.
    July 22, 2021 at 1:00 am #12036
    akfreak
    Member

    Again, with a small (such as 3.175mm ) in the $1tr=3.175mm or $2tr=3.175mm , the steppers will not move at all no matter how big or small of a command for them to move example G00 x-50 or G00 x50 the motors power up ( I can hear it), but the stepper will not rotate at all. If I have a larger value $1tr= 10mm or 20mm ect, the steppers will rotate (but as you know, they move the wrong distance). My machine is all lead screw only, no pulleys)

    In the video I shared earlier, it shows that small $tr=? number, the motors wont move, but increased, they do move.

    July 22, 2021 at 6:47 am #12037
    cmcgrath5035
    Moderator

    There is a lot to chew on here, I have limited time at the moment.

    Flow control:
    Set tiny G to $ex=2 and only check the RTS box in Coolterm.

    You still have both m3 and m4 mapped to the Z axis.
    When tinyG tries to move Z axis, it won’t know which parameters to use.
    map m4 to a,b or c for now.

    set $zsm=0 to turn off that limit switch.

    Try jogging your machine at slower speeds,
    for example use G01 X10 1000 to request a 10mm move at 1000 mm/min.
    G00 X10 attempts to move at max velocity.

    I’ll be off the air for a couple days.

    You might want to disconnect your motors from the leadscrews to get motors moving reliably without load.put a piece of tape on the motor shafts so you can see them rotate.

    July 24, 2021 at 6:44 pm #12040
    akfreak
    Member

    Thanks for helping me figure this stuff out
    I feel so dumb, I think $EX (flow control) was my main problem from the start. I did read the setup instructions for CoolTerm and did in-fact have CTS checked in the Options dialog of CoolTerm. But also Xon was checked, and in the board parameters it was set for $ex=1 which is xon/xoff flow control. As soon as I changed it to RTS/CTS, everything started working as It should.

    Also I used a dial indicator fo set up my strange Z axis ball screw to travel close to the correct distance.

    I also corrected X,Y and Z polarity to Positive in the right direction (right hand rule)

    August 1, 2021 at 8:22 pm #12043
    akfreak
    Member

    Update, I have the machine moving and responding as it should. On X & Y when I give a 12.7mm command the head mones exactly .5″ (1/2 inch). However I am still fighting this build and have a long way to go.

    I am connected to Chilipeppr and if I run the stock logo, it stacks the letters on top of each other. I wish I could find a way to post a pic here, but I just cant. I have to post a video instead. BTW I tried to change the $xvm but it didnt have any impact. I did reach out for help in another forum and he suggested it might be the Feedrate G0 set to fast and it was being skipped. Baby steps, baby steps. At this point I am thinking of buying All new steppers and starting from scratch.

    here is the Dump

    [fb] firmware build 440.20
    [fv] firmware version 0.97
    [hp] hardware platform 1.00
    [hv] hardware version 8.00
    [id] TinyG ID 2U2971-QKG
    [ja] junction acceleration 2000000 mm
    [ct] chordal tolerance 0.0100 mm
    [sl] soft limit enable 0
    [st] switch type 1 [0=NO,1=NC]
    [mt] motor idle timeout 2.00 Sec
    [ej] enable json mode 0 [0=text,1=JSON]
    [jv] json verbosity 4 [0=silent,1=footer,2=messages,3=configs,4=linenum,5=verbose]
    [js] json serialize style 1 [0=relaxed,1=strict]
    [tv] text verbosity 1 [0=silent,1=verbose]
    [qv] queue report verbosity 1 [0=off,1=single,2=triple]
    [sv] status report verbosity 1 [0=off,1=filtered,2=verbose]
    [si] status interval 250 ms
    [ec] expand LF to CRLF on TX 0 [0=off,1=on]
    [ee] enable echo 0 [0=off,1=on]
    [ex] enable flow control 2 [0=off,1=XON/XOFF, 2=RTS/CTS]
    [baud] USB baud rate 5 [1=9600,2=19200,3=38400,4=57600,5=115200,6=230400]
    [net] network mode 0 [0=master]
    [gpl] default gcode plane 0 [0=G17,1=G18,2=G19]
    [gun] default gcode units mode 1 [0=G20,1=G21]
    [gco] default gcode coord system 1 [1-6 (G54-G59)]
    [gpa] default gcode path control 2 [0=G61,1=G61.1,2=G64]
    [gdi] default gcode distance mode 0 [0=G90,1=G91]
    [1ma] m1 map to axis 0 [0=X,1=Y,2=Z…]
    [1sa] m1 step angle 1.800 deg
    [1tr] m1 travel per revolution 6.3500 mm
    [1mi] m1 microsteps 8 [1,2,4,8]
    [1po] m1 polarity 0 [0=normal,1=reverse]
    [1pm] m1 power management 2 [0=disabled,1=always on,2=in cycle,3=when moving]
    [2ma] m2 map to axis 1 [0=X,1=Y,2=Z…]
    [2sa] m2 step angle 1.800 deg
    [2tr] m2 travel per revolution 6.3500 mm
    [2mi] m2 microsteps 8 [1,2,4,8]
    [2po] m2 polarity 1 [0=normal,1=reverse]
    [2pm] m2 power management 2 [0=disabled,1=always on,2=in cycle,3=when moving]
    [3ma] m3 map to axis 2 [0=X,1=Y,2=Z…]
    [3sa] m3 step angle 1.800 deg
    [3tr] m3 travel per revolution 60.5000 mm
    [3mi] m3 microsteps 8 [1,2,4,8]
    [3po] m3 polarity 1 [0=normal,1=reverse]
    [3pm] m3 power management 2 [0=disabled,1=always on,2=in cycle,3=when moving]
    [4ma] m4 map to axis 3 [0=X,1=Y,2=Z…]
    [4sa] m4 step angle 1.800 deg
    [4tr] m4 travel per revolution 2.1166 mm
    [4mi] m4 microsteps 8 [1,2,4,8]
    [4po] m4 polarity 1 [0=normal,1=reverse]
    [4pm] m4 power management 2 [0=disabled,1=always on,2=in cycle,3=when moving]
    [xam] x axis mode 1 [standard]
    [xvm] x velocity maximum 16000 mm/min
    [xfr] x feedrate maximum 16000 mm/min
    [xtn] x travel minimum 0.000 mm
    [xtm] x travel maximum 482.600 mm
    [xjm] x jerk maximum 5000 mm/min^3 * 1 million
    [xjh] x jerk homing 10000 mm/min^3 * 1 million
    [xjd] x junction deviation 0.0100 mm (larger is faster)
    [xsn] x switch min 0 [0=off,1=homing,2=limit,3=limit+homing]
    [xsx] x switch max 0 [0=off,1=homing,2=limit,3=limit+homing]
    [xsv] x search velocity 3000 mm/min
    [xlv] x latch velocity 100 mm/min
    [xlb] x latch backoff 10.000 mm
    [xzb] x zero backoff 2.000 mm
    [yam] y axis mode 1 [standard]
    [yvm] y velocity maximum 16000 mm/min
    [yfr] y feedrate maximum 16000 mm/min
    [ytn] y travel minimum 0.000 mm
    [ytm] y travel maximum 304.800 mm
    [yjm] y jerk maximum 5000 mm/min^3 * 1 million
    [yjh] y jerk homing 10000 mm/min^3 * 1 million
    [yjd] y junction deviation 0.0100 mm (larger is faster)
    [ysn] y switch min 0 [0=off,1=homing,2=limit,3=limit+homing]
    [ysx] y switch max 0 [0=off,1=homing,2=limit,3=limit+homing]
    [ysv] y search velocity 3000 mm/min
    [ylv] y latch velocity 100 mm/min
    [ylb] y latch backoff 10.000 mm
    [yzb] y zero backoff 2.000 mm
    [zam] z axis mode 1 [standard]
    [zvm] z velocity maximum 1000 mm/min
    [zfr] z feedrate maximum 1000 mm/min
    [ztn] z travel minimum -31.750 mm
    [ztm] z travel maximum 0.000 mm
    [zjm] z jerk maximum 50 mm/min^3 * 1 million
    [zjh] z jerk homing 1000 mm/min^3 * 1 million
    [zjd] z junction deviation 0.0100 mm (larger is faster)
    [zsn] z switch min 0 [0=off,1=homing,2=limit,3=limit+homing]
    [zsx] z switch max 0 [0=off,1=homing,2=limit,3=limit+homing]
    [zsv] z search velocity 1000 mm/min
    [zlv] z latch velocity 100 mm/min
    [zlb] z latch backoff 10.000 mm
    [zzb] z zero backoff 3.000 mm
    [aam] a axis mode 3 [radius]
    [avm] a velocity maximum 25920 deg/min
    [afr] a feedrate maximum 12960 deg/min
    [atn] a travel minimum -1.000 deg
    [atm] a travel maximum -1.000 deg
    [ajm] a jerk maximum 324000 deg/min^3 * 1 million
    [ajh] a jerk homing 324000 deg/min^3 * 1 million
    [ajd] a junction deviation 0.1000 deg (larger is faster)
    [ara] a radius value 5.3052 deg
    [asn] a switch min 1 [0=off,1=homing,2=limit,3=limit+homing]
    [asx] a switch max 0 [0=off,1=homing,2=limit,3=limit+homing]
    [asv] a search velocity 2000 deg/min
    [alv] a latch velocity 2000 deg/min
    [alb] a latch backoff 5.000 deg
    [azb] a zero backoff 2.000 deg
    [bam] b axis mode 0 [disabled]
    [bvm] b velocity maximum 3600 deg/min
    [bfr] b feedrate maximum 3600 deg/min
    [btn] b travel minimum -1.000 deg
    [btm] b travel maximum -1.000 deg
    [bjm] b jerk maximum 20 deg/min^3 * 1 million
    [bjd] b junction deviation 0.0100 deg (larger is faster)
    [bra] b radius value 1.0000 deg
    [cam] c axis mode 0 [disabled]
    [cvm] c velocity maximum 3600 deg/min
    [cfr] c feedrate maximum 3600 deg/min
    [ctn] c travel minimum -1.000 deg
    [ctm] c travel maximum -1.000 deg
    [cjm] c jerk maximum 20 deg/min^3 * 1 million
    [cjd] c junction deviation 0.0100 deg (larger is faster)
    [cra] c radius value 1.0000 deg
    [p1frq] pwm frequency 100 Hz
    [p1csl] pwm cw speed lo 1000 RPM
    [p1csh] pwm cw speed hi 2000 RPM
    [p1cpl] pwm cw phase lo 0.125 [0..1]
    [p1cph] pwm cw phase hi 0.200 [0..1]
    [p1wsl] pwm ccw speed lo 1000 RPM
    [p1wsh] pwm ccw speed hi 2000 RPM
    [p1wpl] pwm ccw phase lo 0.125 [0..1]
    [p1wph] pwm ccw phase hi 0.200 [0..1]
    [p1pof] pwm phase off 0.100 [0..1]
    [g54x] g54 x offset 0.000 mm
    [g54y] g54 y offset 0.000 mm
    [g54z] g54 z offset -46.000 mm
    [g54a] g54 a offset 0.000 deg
    [g54b] g54 b offset 0.000 deg
    [g54c] g54 c offset 0.000 deg
    [g55x] g55 x offset 145.000 mm
    [g55y] g55 y offset 160.000 mm
    [g55z] g55 z offset 0.000 mm
    [g55a] g55 a offset 0.000 deg
    [g55b] g55 b offset 0.000 deg
    [g55c] g55 c offset 0.000 deg
    [g56x] g56 x offset 0.000 mm
    [g56y] g56 y offset 0.000 mm
    [g56z] g56 z offset 0.000 mm
    [g56a] g56 a offset 0.000 deg
    [g56b] g56 b offset 0.000 deg
    [g56c] g56 c offset 0.000 deg
    [g57x] g57 x offset 0.000 mm
    [g57y] g57 y offset 0.000 mm
    [g57z] g57 z offset 0.000 mm
    [g57a] g57 a offset 0.000 deg
    [g57b] g57 b offset 0.000 deg
    [g57c] g57 c offset 0.000 deg
    [g58x] g58 x offset 0.000 mm
    [g58y] g58 y offset 0.000 mm
    [g58z] g58 z offset 0.000 mm
    [g58a] g58 a offset 0.000 deg
    [g58b] g58 b offset 0.000 deg
    [g58c] g58 c offset 0.000 deg
    [g59x] g59 x offset 0.000 mm
    [g59y] g59 y offset 0.000 mm
    [g59z] g59 z offset 0.000 mm
    [g59a] g59 a offset 0.000 deg
    [g59b] g59 b offset 0.000 deg
    [g59c] g59 c offset 0.000 deg
    [g92x] g92 x offset 0.000 mm
    [g92y] g92 y offset 0.000 mm
    [g92z] g92 z offset 0.000 mm
    [g92a] g92 a offset 0.000 deg
    [g92b] g92 b offset 0.000 deg
    [g92c] g92 c offset 0.000 deg
    [g28x] g28 x position 0.000 mm
    [g28y] g28 y position 0.000 mm
    [g28z] g28 z position 0.000 mm
    [g28a] g28 a position 0.000 deg
    [g28b] g28 b position 0.000 deg
    [g28c] g28 c position 0.000 deg
    [g30x] g30 x position 0.000 mm
    [g30y] g30 y position 0.000 mm
    [g30z] g30 z position 0.000 mm
    [g30a] g30 a position 0.000 deg
    [g30b] g30 b position 0.000 deg
    [g30c] g30 c position 0.000 deg
    tinyg [mm] ok>

    August 3, 2021 at 10:47 am #12046
    cmcgrath5035
    Moderator

    I saw John Lauer’s suggestion to reduce Vmax, a good one.
    Reduce 16000 to 1600 or 160, just to see if that helps.

    Do you have the current pots all the way up?

    While I have never seen steppers that did not like to microstep, try setting
    $1mi = $2mi = $3mi = 1. If that helps, try = 2 or = 4.

    August 3, 2021 at 8:56 pm #12048
    akfreak
    Member

    The pots we’re about 3/4 but I backed them down becuase the machine was growling, now it’s way more quiet.

    When I reached out to John, I did try his recommendation, but I guess I didn’t go low enough. I am set at 800 on XVM and YVM and the logo looks like it should.

    What do I need to change to set up the actual speeds. The machine runs super slow. I don’t always want to run at blazing speeds, but the base feedrate is very slow. Both GO and GOO are at a snail’s pace.

    Good news I can make a logo,
    Lol

    August 4, 2021 at 9:26 am #12049
    cmcgrath5035
    Moderator

    For whatever reason, you are not getting enough torque from the steppers, or there is too much resistance (e.g. binding) in the leadscrews.

    Any chance you are using only half the A and B windings?
    (Center tap ID error)

    What Power supply voltage ?

    Try $xjm = $yjm = 50 (same as Z)

    August 11, 2021 at 6:31 pm #12051
    akfreak
    Member

    Good news is the machine seems to be working a little better. I want to work on the homing switches for at least the Z axis. I remember you saying that the homing switch wires need to be shielded as normal wire is very susceptible to RF noise?

    What wire should I use? Thanks for all your help. T

    August 12, 2021 at 8:29 am #12052
    cmcgrath5035
    Moderator

    shielded twisted pair, with shield grounded only at tinyG end.
    Not much current flow, 22 or 24 ga would work fine.
    Finer gauge( 26 or higher) would work but difficult to work with.

    August 15, 2021 at 1:59 am #12053
    akfreak
    Member

    I ordered shielded cables for my micro/homing switches. Im still having problems where the logos and such will not line up. Its definitely on the X Axis. On Cut speeds it seems to be fine, the rapids it looses its place. Letters sill stack up. I see the GUI showing the head position should be moving horizontally, bit it isn’t keeping up. Once it starts the cut, go speeds, its working ok.

    So I looked at buying new steppers, and I come to realize these are Nema 34 motors. Can the TinyG even handle that big of a motor?

    August 16, 2021 at 8:43 pm #12054
    cmcgrath5035
    Moderator

    At all NEMA sizes, there are different winding configurations that require different drive currents to operate properly.
    A very general statement would be that motors that have more turns per pole(more copper) will require less current to step properly but will exhibit more inductance and be less responsive.

    What power supply voltage are you using? More voltage will provide more power into the steppers.

    August 16, 2021 at 10:29 pm #12055
    akfreak
    Member

    I am using 24V (25.6v 6a)

    August 17, 2021 at 7:08 am #12056
    cmcgrath5035
    Moderator

    Generally speaking, if a machine design required NEMA34 class torque to move around and get the job done, the recommendation would be to use external stepper drivers capable of delivering higher current to fully utilize the capability of the NEMA34s
    I am referring to something like this

    There are numerous solutions in that space, depending on your budget.

    Can tinyG make NEMA34’s move? Yes. Energize their full capability? No.
    Current output and cooling of the drivers are issues.
    With large steppers, running drivers at 40V and above is typical.

    I don’t have enough info to say that is the right solution for you.
    If you are convinced that the machine and lead screws are properly configured, it does sound like more power (torque) is what you need.

    If making moves at cut speed works, lowering the max speeds might work
    if you can tolerate the time required.

    Did you try reducing the Jerk settings?

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