Best posts made by briskspirit

@dc42 and all Admins! Maybe we need to have off topic board? For example I am crazy about Python, Machine Learning, LIDARs and etc and don't have a place to talk Just an idea... Delete please if not allowed

Hi there!

I am choosing stepper for my Y axis. Now it uses 34mm long 22N/cm 1.8 degree stepper and it seems enough. I plan to switch to 0.9 degree steppers and choosing right now between 22N/cm 34mm long and 36N/cm 40mm long. As it is Y axis - I don't care about weight of a stepper. But what about rotor inertia? 34mm - 35g/cm, 40mm - 54g/cm. Is it a big difference? Is it critical?

Thanks

M92 E97:97 ; Set steps per mm for extruders E0 and E1

@t3p3tony Something like: Other Tech Talks ? Or Other Hobbies?
I don't know if we need cats/jokes etc

Hi guys!

Finally I've finished my upgrade from Chitu board to Duet3d Wifi, plus changed pulleys from 17T to 16T, changed lead screw (8mm travel) to regular screw(2mm travel), X axis has got 0.9deg stepper(planning to change Y axis stepper a bit later as it has integrated shaft ~300mm length) and one more major upgrade was installing E3D filament tube(heat break?) + E3D heat block + E3D nozzles(one is all metal and one is with Capricorn PTFE tube) into MK10 cooling block + MK10 extruders/carriage Later planing to change extruder pulleys, add gear and install 0.9deg steppers.

Wow! It is soooo quiet now! But have some kind of vibration noise from X axis at some speeds... need to find out..

So today I have made the first print with Simplify3D old settings at 50mm/s , PETG, printing temp 230C, heated bed 70C, print fan is off(have a problem with it...) (except changed retract distance from 1.6 to 0.8 and switched off coasting and wiping). I have made just an initial setup of Duet3D and tuned up PID settings, set exact(measured at 1mm/s) steps for extruders.

I need your opinion about quality of that print(25mm cube) and what do I need to do next to improve printer quality please! And maybe some insights about acceleration/jerk settings..

My worst nightmare was to see Z-banding And I don't see it at all!! )
Problems that I see and how I could :

• retraction on layer change
• pressure advance

So what are my next steps ? non-linear extrusion and after that pressure advance? Or something before that is needed?

config.g (latest RC5 firmware):

; Configuration file for Duet WiFi
; executed by the firmware on start-up

; General preferences
M111 S0 ; Debug off
G21; Work in millimetres
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves
M555 P1 ; Set firmware compatibility to look like RepRapFirmare (P2 for Marlin)
M575 P1 B57600 S1 ; Set auxiliary serial port baud rate and require checksum (for PanelDue)

; Network
M550 Psomecoolprinter ; Set machine name
M552 S1 ; Enable network
M587 S"iwonttellyou" P"password" I192.168.1.201 J192.168.1.1 K255.255.255.0 ; Configure access point and IP addresses. You can delete this line once connected
M586 P0 S1 ; Enable HTTP
M586 P1 S0 ; Disable FTP
M586 P2 S0 ; Disable Telnet

; Drives
M569 P0 S1 ; Drive 0 goes forwards
M569 P1 S1 ; Drive 1 goes forwards
M569 P2 S0 ; Drive 2 goes backwards(Z drive)
M569 P3 S1 ; Drive 3 goes forwards(Tool 0)
M569 P4 S0 ; Drive 4 goes backwards(Tool 1)

M350 X16 Y16 Z16 E16:16 I1 S2 ; Configure microstepping without interpolation and Spread Cycle enabled
;16T pulleys
M92 X200 Y100 ; Set steps per mm for X(is 0.9deg stepper) Y(is 1.8deg stepper)
;T8*2 lead screw
M92 Z1600 ; Set steps per mm for Z
;TODO: will be changed to geared 2.75:1 extruder with Bondtech gears and Nema 17 slim stepper
M92 E99:96 ; Set steps per mm for extruders E0 and E1 (Different for PLA and PETG??)

; Axis kinematics
M566 X900 Y900 Z12 E120:120 ; Set maximum instantaneous speed changes (mm/min)
;TODO: change max speed after changing extruders (https://reprapfirmware.org)
M203 X6000 Y6000 Z600 E7200:7200 ; Set maximum speeds (mm/min) # Max speed before torque drop for X - 15354, Y - 11046
M201 X400 Y400 Z50 E250:250 ; Set accelerations (mm/s^2) # Max accel for X by calculator 2820, for Y - 2155(estimate as I don't know exact weight)

; Steppers currents
M906 X1064 Y680 Z1200 E714:714 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1 ; Set axis minima
M208 X264.5 Y154 Z169 S0 ; Set axis maxima
;M579 X1.001895478 Y1.004419446; Scale axis (Correction factors based on measurment of printed models)


; Endstops
M574 X2 S0 ; Set active low endstop for X
M574 Y2 S0 ; Set active low endstop for Y
M574 Z2 S0 ; Set active low endstop for Z

; Z-Probe
M558 P0 H5 F120 T12000 ; Disable Z probe but set dive height, probe speed and travel speed
M557 X15:249.5 Y15:139 S20 ; Define mesh grid

; Heaters
;Bed
M307 H0 A297.5 C982.3 D0.7 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit
M305 P0 T100000 B3950 C0 R4700 ; Set thermistor + ADC parameters for heater 0
M143 H0 S110 ; Set temperature limit for heater 0 to 110C

;Extruders
M307 H1 A561.2 C153.0 D9.6 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit
M305 P1 T100000 B3950 C0 R4700 ; Set thermistor + ADC parameters for heater 1
M143 H1 S310 ; Set temperature limit for heater 1 to 310C (All Metal hotend)

M307 H2 A797.2 C207.2 D8.1 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit
M305 P2 T100000 B3950 C0 R4700  ; Set thermistor + ADC parameters for heater 2
M143 H2 S260 ; Set temperature limit for heater 2 to 260C

; Fans
; Part cooling
M106 P0 S0 L0 I0 F100 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off

; Cooling block fans
M106 P1 S1 I0 F25000 H1:2 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P2 S1 I0 F25000 H1:2 T45 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

; Tools
M563 P0 D0 H1 ; 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
M563 P1 D1 H2 ; Define tool 1
G10 P1 X-34 Y0 Z0 ; Set tool 1 axis offsets
G10 P1 R0 S0 ; Set initial tool 1 active and standby temperatures to 0C

; Automatic power saving
M911 S20 R22 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; Set voltage thresholds and actions to run on power loss

; Custom settings

; Miscellaneous
M501 ; Load saved parameters from non-volatile memory

@deckingman Ian, may I ask you to help me check my config please? https://forum.duet3d.com/topic/7048/help-to-check-config-please

@spodeopieter Make them as the one tool.