dustin davis

CMCGRATH5035 I tried all your suggestions and one of them I think is right on. My Z axis is very grainy sounding. So I switched the Z axis driver motor 4 with the X axis and the X axis is very grainy now. It is not a smooth motor sound like the other drivers. Maybe that Driver is bad. I only recently changed my machine to use 4 motors rather than the 3 I had built it with. So I never used the 4th motor driver. Even adjusting the amps on the driver only makes it quiet when it is so low the motor is not turning. Maybe I just got a bad board. I only had it sense last August and haven’t really had time to play with it very much.

[fb] firmware build 440.20
[fv] firmware version 0.97
[hp] hardware platform 1.00
[hv] hardware version 8.00
[id] TinyG ID 5X3848-VDS
[ja] junction acceleration 50000 in
[ct] chordal tolerance 0.0004 in
[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 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 0 [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 1 [0=X,1=Y,2=Z…]
[1sa] m1 step angle 1.800 deg
[1tr] m1 travel per revolution 0.2950 in
[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 0.2950 in
[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 0 [0=X,1=Y,2=Z…]
[3sa] m3 step angle 1.800 deg
[3tr] m3 travel per revolution 0.3140 in
[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 2 [0=X,1=Y,2=Z…]
[4sa] m4 step angle 1.800 deg
[4tr] m4 travel per revolution 1.2700 in
[4mi] m4 microsteps 8 [1,2,4,8]
[4po] m4 polarity 0 [0=normal,1=reverse]
[4pm] m4 power management 3 [0=disabled,1=always on,2=in cycle,3=when moving]
[xam] x axis mode 1 [standard]
[xvm] x velocity maximum 150 in/min
[xfr] x feedrate maximum 100 in/min
[xtn] x travel minimum 0.000 in
[xtm] x travel maximum -20.000 in
[xjm] x jerk maximum 25 in/min^3 * 1 million
[xjh] x jerk homing 25 in/min^3 * 1 million
[xjd] x junction deviation 0.0020 in (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 20 in/min
[xlv] x latch velocity 4 in/min
[xlb] x latch backoff 0.197 in
[xzb] x zero backoff 0.039 in
[yam] y axis mode 1 [standard]
[yvm] y velocity maximum 150 in/min
[yfr] y feedrate maximum 100 in/min
[ytn] y travel minimum 0.000 in
[ytm] y travel maximum -20.000 in
[yjm] y jerk maximum 25 in/min^3 * 1 million
[yjh] y jerk homing 25 in/min^3 * 1 million
[yjd] y junction deviation 0.0020 in (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 20 in/min
[ylv] y latch velocity 4 in/min
[ylb] y latch backoff 0.197 in
[yzb] y zero backoff 0.039 in
[zam] z axis mode 1 [standard]
[zvm] z velocity maximum 31 in/min
[zfr] z feedrate maximum 31 in/min
[ztn] z travel minimum -3.000 in
[ztm] z travel maximum 3.000 in
[zjm] z jerk maximum 25 in/min^3 * 1 million
[zjh] z jerk homing 25 in/min^3 * 1 million
[zjd] z junction deviation 0.0200 in (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 5 in/min
[zlv] z latch velocity 4 in/min
[zlb] z latch backoff 0.197 in
[zzb] z zero backoff 0.125 in
[aam] a axis mode 0 [disabled]
[avm] a velocity maximum 230400 deg/min
[afr] a feedrate maximum 230400 deg/min
[atn] a travel minimum 0.000 deg
[atm] a travel maximum -1.000 deg
[ajm] a jerk maximum 218059 deg/min^3 * 1 million
[ajh] a jerk homing 286461 deg/min^3 * 1 million
[ajd] a junction deviation 0.0500 deg (larger is faster)
[ara] a radius value 0.0000 deg
[asn] a switch min 0 [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 600 deg/min
[alv] a latch velocity 100 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 0.0500 deg (larger is faster)
[bra] b radius value 0.0394 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 0.0500 deg (larger is faster)
[cra] c radius value 0.0394 deg
[p1frq] pwm frequency 2500 Hz
[p1csl] pwm cw speed lo 500 RPM
[p1csh] pwm cw speed hi 12000 RPM
[p1cpl] pwm cw phase lo 0.125 [0..1]
[p1cph] pwm cw phase hi 100.000 [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 in
[g54y] g54 y offset 0.000 in
[g54z] g54 z offset 0.000 in
[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 2.953 in
[g55y] g55 y offset 2.953 in
[g55z] g55 z offset 0.000 in
[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 in
[g56y] g56 y offset 0.000 in
[g56z] g56 z offset 0.000 in
[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 in
[g57y] g57 y offset 0.000 in
[g57z] g57 z offset 0.000 in
[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 in
[g58y] g58 y offset 0.000 in
[g58z] g58 z offset 0.000 in
[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 in
[g59y] g59 y offset 0.000 in
[g59z] g59 z offset 0.000 in
[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 in
[g92y] g92 y offset 0.000 in
[g92z] g92 z offset 0.000 in
[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 in
[g28y] g28 y position 0.000 in
[g28z] g28 z position 0.000 in
[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 in
[g30y] g30 y position 0.000 in
[g30z] g30 z position 0.000 in
[g30a] g30 a position 0.000 deg
[g30b] g30 b position 0.000 deg
[g30c] g30 c position 0.000 deg
tinyg [inch] ok>
tinyg [inch] ok>

OK I am not sure what I did but the stepper is sounding as smooth as the other axis now. I played with all the settings and now it sounds good. I did try running a few things this weekend. I think it was the collet. I was using a 6.5mm because the 6mm was slightly small. Well that must have been enough to let the bit get pulled out. I changed to the 6mm and it is cutting right.

Ok so here is what I came up with. The ball nose end mill was digging in so it was pulling the axis down an extra .030 each time it plunged. I have added some tension springs to it and I am going to try to use ramp to stop this. Thanks for all of the help.