Hi There,

Once again after a lot of testing I am back.

I fixed a lot of issues on previous posts but not I am having much luck printing...to the point of frustration.

What I have done so far:

I replaced the Titan Extruder with a Bondtech BMG - much of the problems disappear for one or two prints.

On the second print the Bondtech had some sort of stall, and "mushed" the pla filament.. I had to use a hot needle to get it out. In an attempt to try and resolve this I changed from a large bowden set-up mounted on a post to a flying bowden, with a much shorter pipe. Its this that led me to one of three conclusion:

1. Either I have a configuration problem that's effecting the extruder
2. I have a problem with the internals of the hot end either not heating up enough to melt the pla and causing a traffic jam or somehow providing resistance
3. both of the above

Any help will be greatly appreciated.

Best,

Andy

config.g

*; Configuration file for Duet Ethernet (firmware version 1.17)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool on Mon May 22 2017 22:56:20 GMT-0400 (Eastern Daylight Time)

; General preferences
M111 S0 ; Debugging off
G21 ; Work in millimetres
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves
M555 P1 ; Set firmware compatibility to look like RepRapFirmare
M665 R150 L397.19 B155 H525 ; Set delta radius, diagonal rod length, printable radius and homed height
M666 X0 Y0 Z0 ; Put your endstop adjustments here, or let auto calibration find them
M208 Z0 S1 ; Set minimum Z

; Endstops
M574 X2 Y2 Z2 S1 ; Define active high microswitches
M558 P1 X0 Y0 Z0 H5 F500 T6000 ; Set Z probe type to unmodulated, the axes for which it is used and the probe + travel speeds
M557 R150 S30 ; Define mesh grid

; BL-Touch
M307 H3 A-1 C-1 D-1 ; reserve pin 21 for M42 or servo use
M558 P9 X0 Y0 Z0 H30 F2500 T5000 ;P9 is a key BLTouch Value
G31 P5 X0 Y0 Z2.5 ; Set Z probe trigger value, offset and trigger height
M557 R150 S30 ; Define mesh grid

; Drives
M569 P0 S1 ; Drive 0 goes forwards
M569 P1 S1 ; Drive 1 goes forwards
M569 P2 S1 ; Drive 2 goes forwards
M569 P3 S1 ; Drive 3 goes forwards

M92 X80 Y80 Z80 E830 ;E884 838E1763 Set steps per mm for x16 M92 X160 Y160 Z160 E1763 Set steps per mm for x32
;M350 E16 I0 ; Configure microstepping without interpolation
M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation

M566 X2000 Y2000 Z2000 E1500 ; Set maximum instantaneous speed changes (mm/min)
M203 X3500 Y3500 Z3500 E1500 ; Set maximum speeds (mm/min)
M201 X1500 Y1500 Z1500 E1500 ; Set accelerations (mm/s^2)
M906 X1800 Y1800 Z1800 E1600 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Heaters
M143 S285 ; Set maximum heater temperature to 285C
M301 H0 S1.00 P10 I0.1 D200 T0.4 W180 B30 ; Use PID on bed heater (may require further tuning)
M305 P0 T100000 B4607 C8.950070e-8 R4700 ; Set thermistor + ADC parameters for heater 0
M305 P1 T100000 B4725 C0 R4700 ; Set thermistor + ADC parameters for heater 1
;M307 H1 A330.8 C243.9 D1.8 B0
;M307 H1 A399.2 C249.3 D2.9 S1.00 V24.2 B0

; 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
M207 S1.8 R1.8 F3000 T3000 Z0.5 ; Set FW retraction length and speed
M572 D0 S0.010 ; Set pressure advance
;Pressure Advance M572 D0 S0.04

; Network
M550 PTEVO Little Monster ; Set machine name
M540 PBE:EF:DE:AD:FE:ED ; Set MAC address
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

; Fans
M106 P0 S0 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S0 I0 F500 H-1 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P2 S0 I0 F500 H-1 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned off

; Custom settings are not configured

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

All,

I have been busy trying various thing...one of the problems I found was the heatbreak was not tightened and when hot seemed to unscrew.

I am now going through the config.g and found various issues I have fixed. I did find the attached in the nozzle. A nozzle X no less.

Best,

Andy

Hello everyone,

So I am going through the config.g trying to sort out everything in my other post (Here).

I am getting a strange bed auto calibrate map. Not sure what I have done, I changed the micro stepping from x32 to x16 as it was pointed out to me that x32 does not work. The delta is so smooth now, and according to the callipers moving the right distance.

Please see attached image, I have never seen such a massive curve across the bed. As ever all help extremely appreciated.

Best,

Andy

Config.g

; Configuration file for Duet Ethernet (firmware version 1.17)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool on Mon May 22 2017 22:56:20 GMT-0400 (Eastern Daylight Time)

; General preferences
M111 S0 ; Debugging off
G21 ; Work in millimetres
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves
M555 P1 ; Set firmware compatibility to look like RepRapFirmare
M665 R150 L397.19 B155 H525 ; Set delta radius, diagonal rod length, printable radius and homed height
M666 X0 Y0 Z0 ; Put your endstop adjustments here, or let auto calibration find them
M208 Z0 S1 ; Set minimum Z

; Endstops
M574 X2 Y2 Z2 S1 ; Define active high microswitches
M558 P1 X0 Y0 Z0 H5 F500 T6000 ; Set Z probe type to unmodulated, the axes for which it is used and the probe + travel speeds
M557 R150 S30 ; Define mesh grid

; BL-Touch
M307 H3 A-1 C-1 D-1 ; reserve pin 21 for M42 or servo use
M558 P9 X0 Y0 Z0 H30 F2500 T5000 ;P9 is a key BLTouch Value
G31 P25 X0 Y0 Z1.5 ; Set Z probe trigger value, offset and trigger height
M557 R150 S30 ; Define mesh grid

; Drives
M569 P0 S1 ; Drive 0 goes forwards
M569 P1 S1 ; Drive 1 goes forwards
M569 P2 S1 ; Drive 2 goes forwards
M569 P3 S1 ; Drive 3 goes forwards
M350 E16 I0 ; Configure microstepping without interpolation
M350 X16 Y16 Z16 I1 ; Configure microstepping with interpolation
;M92 X160 Y160 Z160 E1763 Set steps per mm for x32
M92 X80 Y80 Z80 E838 ;E1763 Set steps per mm for x16

M566 X2000 Y2000 Z2000 E2000 ; Set maximum instantaneous speed changes (mm/min)
M203 X2500 Y2500 Z2500 E2500 ; Set maximum speeds (mm/min)
M201 X2500 Y2500 Z2500 E2500 ; Set accelerations (mm/s^2)
M906 X1800 Y1800 Z1800 E1500 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Heaters
M143 S285 ; Set maximum heater temperature to 285C
M301 H0 S1.00 P10 I0.1 D200 T0.4 W180 B30 ; Use PID on bed heater (may require further tuning)
M305 P0 T100000 B4607 C8.950070e-8 R4700 ; Set thermistor + ADC parameters for heater 0
M305 P1 T100000 B4725 C0 R4700 ; Set thermistor + ADC parameters for heater 1
;M307 H1 A330.8 C243.9 D1.8 B0

; 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
M207 S1.8 R1.8 F3000 T3000 Z0.5 ; Set FW retraction length and speed
M572 D0 S0.05 ; Set pressure advance
;Pressure Advance M572 D0 S0.04

; Network
M550 PTEVO Little Monster ; Set machine name
M540 PBE:EF:DE:AD:FE:ED ; Set MAC address
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

; Fans
M106 P0 S0 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S0 I0 F500 H-1 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P2 S0 I0 F500 H-1 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned off

; Custom settings are not configured

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

Eeek no, how hot should it be?

Best,

Andy

Oh boy...so where to begin...

So the extruder after a little persuasion runs a charm, I still have a Bondtech on order but that will be for a second head

I had a fan at the front of the head running full belt...all the time, despite me thinking I had set it to be based on PWM. Either way I was happy to unplig it for now as I have two other fans running either side (which are controlled by PWM...they are currently off).

I took of the silicon sock, and there was plastic everywhere, I decided to do a quick check of my setting with the M303 H1 S250 1. It all went to plan, except there was smoke...very strange. I could not find the source. either way when I used the temp gun...it read at about 10-20 deg c less than the thermistor. After the fourth phase of the tuning i got this message:

**20:20:36
M307 H1
Heater 1 model: gain 456.8, time constant 353.5, dead time 3.3, max PWM 1.00, calibration voltage 24.2, mode PID, inverted no, frequency default
Computed PID parameters for setpoint change: P41.7, I1.217, D96.7
Computed PID parameters for load change: P41.

20:13:55
Warning: Heater 1 appears to be over-powered. If left on at full power, its temperature is predicted to reach 481C.
Auto tune heater 1 completed in 588 sec
Use M307 H1 to see the result, or M500 to save the result in config-override.g**

I then noticed as cleaning of the plastic i could move the head very slightly...I am now waiting for it to cool...either way a much more exciting experiment than I thought I would get

I will dismantle the head and reseat everything, hope I did not damage anything inside the Nozel X

Best,

Andy

I think you might be right, either way I have another extruder and another hot end, so my multiple colour set-up is getting closer

Just don't tell the wife

Best,

Andy

They all seem to rotate fine, no issues. Maybe its temperature or a blockage?

I will investigate, I am not a professional film director but here is some shaky cam footage of the clicking while printing.

https://youtu.be/W6oQOy67FgI

Best,

Andy

All,

Thank you all for the replys, I have bought a Bondtech but also a temp gun to see what's happening at the hot end...I don't think its bad bearings as I bought the Titan in Oct 2018...Either way I have been given a lot to think about and try, so I will get back to you after I have had a chance to play

My set-up is a Tevo Little monster completely overhauled electronically...So I am interested in a Bowden set-up.

Best,

Andy

@mrehorstdmd It’s the filament being ground, which then does not move

Hi,

So I have the Tevo Little Monster with about 600mm of tube, would the BMG be ok?

Best,

Andy