Voron 2.4 3MB6 §EB config issues.

Titus A Duxass

Okay, so F1200 is the first pass speed and 120 the second pass speed.

my line now looks like this:

M558 P5 C"^io3.in" H5 F1200:120 T6000

jay_s_uk

these lines

M350 Z64 I0 ; configure microstepping without interpolation
M350 X64 Y64 E64 I1 ; configure microstepping with interpolation
M92 X320.00 Y320.00 Z400.00 E1746.16 ; set steps per mm

change to

M350 Z16 I0 ; configure microstepping without interpolation
M350 X16 Y16 E16 I1 ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E436.54 ; set steps per mm

your Z steps were wrong for X64 which is probably why your moves were so slow and it was erroring out after 100mm (as the machine had thought you'd moved 400mm which is greater than your Z height)

Titus A Duxass

This post is deleted!

jay_s_uk

@Titus-A-Duxass because we're setting x16 rather than x64, so the values need to be dividing by 4 as we're using 4 times less microsteps

Titus A Duxass

This post is deleted!

Titus A Duxass

@jay_s_uk Okay, I think I understand. I need to do a bit of reading about microsteps.

Titus A Duxass

@jay_s_uk My config.g now looks like this.

; Configuration file for Duet 3 MB 6HC (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.15 on Sun Dec 18 2022 17:39:32 GMT+0100 (Mitteleuropäische Normalzeit)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"voron" ; set printer name
M669 K1 ; select CoreXY mode

; Wait a moment for the CAN expansion boards to start
G4 S2

; Network
M552 P0.0.0.0 S1 ; enable network and acquire dynamic address via DHCP
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet

; Drives
M584 X1.1 Y1.2 Z0.1:0.5:0.3:0.4 E1.0 ; set drive mapping

M569 P1.1 S0 ; A motor goes forwards
M569 P1.2 S0 ; B motor goes forwards

M569 P0.1 S1 ; FL goes forwards
M569 P0.5 S0 ; RL goes backwards
M569 P0.3 S0 ; RR goes forwards
M569 P0.4 S1 ; FR goes backwards

M569 P1.0 S0 ; Extruder goes backwards

M350 Z16 I0 ; configure microstepping without interpolation
M350 X16 Y16 E16 I1 ; configure microstepping with interpolation
M92 X320.00 Y320.00 Z400.00 E436.54 ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X60000.00 Y60000.00 Z18000.00 E1200.00 ; set maximum speeds (mm/min)
M201 X6000.00 Y6000.00 Z4000.00 E250.00 ; set accelerations (mm/s^2)
M906 X1500 Y1500 Z1200 E400 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S10 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1 ; set axis minima
M208 X290 Y290 Z250 S0 ; set axis maxima

; Endstops
M574 X2 S1 P"^io1.in" ; configure switch-type (e.g. microswitch) endstop for high end on X via pin ^io1.in
M574 Y2 S1 P"^io2.in" ; configure switch-type (e.g. microswitch) endstop for high end on Y via pin ^io2.in

; Z-Probe
M558 P5 C"^io3.in" H5 F1200:120 T6000 ; set Z probe type to switch and the dive height + speeds
G31 P500 X0 Y25 Z2.5 ; set Z probe trigger value, offset and trigger height
M557 X40:260 Y40:260 S20 ; define mesh grid

; Heaters
M308 S0 P"temp0" Y"thermistor" T100000 B4092 ; configure sensor 0 as thermistor on pin temp0
M950 H0 C"out0" T0 ; create bed heater output on out0 and map it to sensor 0
M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S120 ; set temperature limit for heater 0 to 120C
M308 S1 P"temp1" Y"thermistor" T100000 B4725 C7.06e-8 ; configure sensor 1 as thermistor on pin temp1
M950 H1 C"out1" T1 ; create nozzle heater output on out1 and map it to sensor 1
M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M143 H1 S280 ; set temperature limit for heater 1 to 280C

; Fans
M950 F0 C"out7" Q500 ; create fan 0 on pin out7 and set its frequency
M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"out8" Q500 ; create fan 1 on pin out8 and set its frequency
M106 P1 S0 H1 T45 ; set fan 1 value. Thermostatic control is turned on

; Tools
M563 P0 S"Revo" D0 H1 F0:1 ; define tool 0
G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets
G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C

; Miscellaneous
M501 ; load saved parameters from non-volatile memory
T0 ; select first tool

jay_s_uk

@Titus-A-Duxass you need to change the X and Y steps too from 320 to 80

Titus A Duxass

@jay_s_uk Done.

jay_s_uk

@Titus-A-Duxass have a go at homing and see how that performs

Titus A Duxass

@jay_s_uk

Perfekt!!
I positioned it at approx. 150 for all three axes and all homed with out an issue.

jay_s_uk

@Titus-A-Duxass great news. if you need anything else just ask

Titus A Duxass

@jay_s_uk
Once again thank you for your invaluable assistance.
I owe a beer/tea/coffeee.

Titus A Duxass

@jay_s_uk

I'm back, just a quick question.
After I have homed all, all motors are powered (you can just hear them buzzing) is this normal?

jay_s_uk

@Titus-A-Duxass yes, you can get that when they're in spreadcycle.
if its something you want to reduce, then you could switch them over to stealthchop.
you either want to switch over at very low speeds or always run them in stealthchop.
you would do this by adding D3 VX to each M569 line, with X being something like 4000 for low speed switch over or 1 for always stealthchop.
If you can live with the sound, stick to spreadcycle.

Titus A Duxass

@jay_s_uk
Thanks, I leave it as is for the moment until I become more confident.
This thing flies, just gone from X200 Y0 to X20 Y250 in less than a second - scary fast.