Hang printer - Print stops with mesh leveling
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@phaedrux
Sounds good. Thanks. I'll get a long network cable next time I come down here. So if we need to go direct I'll be able to. Look forward to seeing what DC42 thinks. Thanks again for the help. -
Hi,
Just out of curiosity what is the "raison d'etre" for a hang printer?
Thanks.
Frederick
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@fcwilt We are working with a group that is wanting to print building sized objects with a custom material, but the printer needs to be easy to transport. I know of no other printer that can do such a large print volume with so few materials for the printer itself. So we proposed a hangprinter This is the first phase proof of concept. If it works we'll be moving to a v4 hangprinter with a pellet extruder. This is why the mesh level needs to be working. We are currently trying to print on 4x8 sheets and will eventually be printing straight to the ground.
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@shinomori said in Hang printer - Print stops with mesh leveling:
M558 P0 H5 F120 T6000
In case you're still at the printer to test.. Would you be able to try increasing the dive height? M558 H5 to H15? I just noticed that your M208 Z minima is -5mm which is the same as your dive height.
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@phaedrux
We'll probably be over later this week to work on it some more. I'll try setting the dive height larger than the z minima. And the other way around. It is interesting that probing one point manually currently works. Used to establish Z0 to before trying to create a mesh level. It only fails when trying to do the mesh. So it seems there is something odd there. It still does load the old mesh file from the last time I ran it before doing all the updates. -
Can you post the heightmap.csv file from the previously saved G29 run?
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@phaedrux
Ok I tried:
M558 P0 H15 F120 T6000
M208 Z-5 S1and:
M558 P0 H5 F120 T6000
M208 Z-15 S1In both cases:
I ran G28 X0 Y0 Z0 E0 U0 then G30. The manual probing screen came up but the print head didn't move after setting height it moved up the dive height in M558. The running G29 this came up:7/12/2021, 12:44:49 PM Warning: Skipping grid point X=200.0, Y=200.0 because Z probe cannot reach it
7/12/2021, 12:44:49 PM Warning: Skipping grid point X=0.0, Y=200.0 because Z probe cannot reach it
7/12/2021, 12:44:49 PM Warning: Skipping grid point X=-200.0, Y=200.0 because Z probe cannot reach it
7/12/2021, 12:44:49 PM Warning: Skipping grid point X=-200.0, Y=0.0 because Z probe cannot reach it
7/12/2021, 12:44:49 PM Warning: Skipping grid point X=0.0, Y=0.0 because Z probe cannot reach it
7/12/2021, 12:44:49 PM Warning: Skipping grid point X=200.0, Y=0.0 because Z probe cannot reach it
7/12/2021, 12:44:49 PM Warning: Skipping grid point X=200.0, Y=-200.0 because Z probe cannot reach it
7/12/2021, 12:44:49 PM Warning: Skipping grid point X=0.0, Y=-200.0 because Z probe cannot reach it
7/12/2021, 12:44:49 PM Warning: Skipping grid point X=-200.0, Y=-200.0 because Z probe cannot reach it
7/12/2021, 12:44:49 PM G29
Error: Too few points probedHere is the config:
; General preferences
G91 ; send relative coordinates...
M83 ; ...but relative extruder moves
M550 P"duet3" ; set printer name; Drives
M569 P0.0 S0 ; physical drive 0.0 goes forwards
M569 P0.1 S1 ; physical drive 0.1 goes forwards
M569 P0.2 S0 ; physical drive 0.2 goes forwards
M569 P0.3 S1 ; physical drive 0.3 goes forwards
M569 P0.4 S0 ; physical drive 0.4 goes forwards
M584 X0.0 Y0.1 Z0.2 E0.3 U0.4 ; set drive mapping
M669 K6 A0.0:-2265.0:0.0 B1725.0:1100.0:0.0 C-1740.0:1120.0:0.0 D0.0:0.0:2666.0 P1500.0
M350 X16 Y16 Z16 E16 U16 I1 ; configure microstepping with interpolation
M92 X92.90 Y92.90 Z92.90 E396.00 U93.00 ; set steps per mm
M566 X900.00 Y900.00 Z900.00 E120.00 U900.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z6000.00 E1200.00 U6000.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z500.00 E250.00 U500.00 ; set accelerations (mm/s^2)
M906 X1000 Y1000 Z1000 E800 U1000 I60 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout; Axis Limits
M208 Z-15 S1 ; set axis minima
M208 Z1500 S0 ; set axis maxima; Endstops
; WARNING: No endstops configured; Z-Probe
M558 P0 H5 F120 T6000; disable Z probe but set dive height, probe speed and travel speed
G31 P500 X0 Y0 Z0
M557 R400 S200
;M557 X-100:100 Y-100:100 S100 ; define mesh grid; Heaters
M308 S0 P"temp1" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp1
M950 H0 C"out1" T0 ; create nozzle heater output on out1 and map it to sensor 0
M143 H0 S270 ; set temperature limit for heater 0 to 270C
M307 H0 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M140 H-1; Fans
M950 F0 C"out7" Q500 ; create fan 0 on pin out7 and set its frequency
M106 P0 S0 H0 ; 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 H0 ; set fan 1 value. Thermostatic control is turned off; Tools
M563 P0 S"Extruder" D0.3 H0 F0 ; 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; Custom settings are not defined
M564 S0 H0 ;allow move without homing
; Miscellaneous
M501 ; load saved parameters from non-volatile memory
T0 ; select first tool -
@shinomori
Here is the height map from the old config. -
@shinomori said in Hang printer - Print stops with mesh leveling:
M558 P0 H15 F120 T6000
M208 Z-5 S1This would be preferable.
@shinomori said in Hang printer - Print stops with mesh leveling:
then G30. The manual probing screen came up but the print head didn't move after setting height it moved up the dive height in M558.
So when G30 is sent with M558 P0 set, there should be a prompt pop up to allow you to jog the Z axis up and down. Did that happen? Are you saying the movement buttons did not respond?
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@phaedrux
When sending the G30 command the the print head doesn't move and the ui for moving the axis comes up. The buttons work to move the print head. I use those buttons to set the height and hit ok. Then the head moves up to the dive height.When sending G29 there is no motion only errors.
When it was working it would move to the location for each probe at z=H parameter in M558.
I wonder if the lack of motion at the start of G30 is an indication of what is causing the G29 to fail?
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@shinomori said in Hang printer - Print stops with mesh leveling:
When sending the G30 command the the print head doesn't move and the ui for moving the axis comes up. The buttons work to move the print head. I use those buttons to set the height and hit ok. Then the head moves up to the dive height.
That's exactly how M558 P0 and manual probing works. You have to manually move the nozzle to touch the bed. So G30 sounds like it's working.
Once you've done that G30 and set the Z0 position are you able to jog the print head around manually?
With M558 P0 set, using G29 should indeed prompt you to jog down at each point.
And just to confirm, that's with this set?
M558 P0 H15 F120 T6000
M208 Z-5 S1 -
It moves around fine after g30. I can move it in a very large space and when I send it back to home it is right to the correct spot.
The behavior was the same with:
M558 P0 H15 F120 T6000
M208 Z-5 S1
and:
M558 P0 H5 F120 T6000
M208 Z-15 S1Tried both.
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Ok, so G30 is working, but G29 still complains that it can't reach all the points.
At this point we don't know if it's a problem with the hang printer kinematic, the SBC DSF implementation, or a firmware problem, or some combination.
Far as I know, you're the first one trying this.
Things to test to narrow it down would be to try testing in standalone mode without the Pi as we discussed before. Though this would require running an ethernet cable up to the Duet.
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@phaedrux Was in the area and stopped by real quick. Tried running a G90 or G91 right after establishing the home. Tried this with dive bigger than minima and smaller and with the Z minima set to 0. All cases the G30 worked but the G29 still did not.
Next step is to connect direct to duet with cable.
The dive is currently set slightly larger than the Z minima. Here is the current config.
; General preferences
G91 ; send relative coordinates...
M83 ; ...but relative extruder moves
M550 P"duet3" ; set printer name; Drives
M569 P0.0 S0 ; physical drive 0.0 goes forwards
M569 P0.1 S1 ; physical drive 0.1 goes forwards
M569 P0.2 S0 ; physical drive 0.2 goes forwards
M569 P0.3 S1 ; physical drive 0.3 goes forwards
M569 P0.4 S0 ; physical drive 0.4 goes forwards
M584 X0.0 Y0.1 Z0.2 E0.3 U0.4 ; set drive mapping
M669 K6 A0.0:-2265.0:0.0 B1725.0:1100.0:0.0 C-1740.0:1120.0:0.0 D0.0:0.0:2666.0 P1500.0
M350 X16 Y16 Z16 E16 U16 I1 ; configure microstepping with interpolation
M92 X92.90 Y92.90 Z92.90 E396.00 U93.00 ; set steps per mm
M566 X900.00 Y900.00 Z900.00 E120.00 U900.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z6000.00 E1200.00 U6000.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z500.00 E250.00 U500.00 ; set accelerations (mm/s^2)
M906 X1000 Y1000 Z1000 E800 U1000 I60 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout; Axis Limits
M208 Z-5 S1 ; set axis minima
M208 Z1500 S0 ; set axis maxima; Endstops
; WARNING: No endstops configured; Z-Probe
M558 P0 H6 F120 T6000; disable Z probe but set dive height, probe speed and travel speed
G31 P500 X0 Y0 Z0
M557 R400 S200
;M557 X-100:100 Y-100:100 S100 ; define mesh grid; Heaters
M308 S0 P"temp1" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp1
M950 H0 C"out1" T0 ; create nozzle heater output on out1 and map it to sensor 0
M143 H0 S270 ; set temperature limit for heater 0 to 270C
M307 H0 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M140 H-1; Fans
M950 F0 C"out7" Q500 ; create fan 0 on pin out7 and set its frequency
M106 P0 S0 H0 ; 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 H0 ; set fan 1 value. Thermostatic control is turned off; Tools
M563 P0 S"Extruder" D0.3 H0 F0 ; 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; Custom settings are not defined
M564 S0 H0 ;allow move without homing
; Miscellaneous
M501 ; load saved parameters from non-volatile memory
T0 ; select first tool -
@shinomori
Ok connected direct to duet. Pi is unplugged from it.Connected to it.
Used G1 S2 commands to tighten individual axis to get to home location.
Sent
G92 X0 Y0 Z0 E0
G90
G30Manual probe worked.
Moved head back to 0,0,0 with ui buttons.
Sent G29This error:
g29
Warning: Skipping grid point X=-200.0, Y=-200.0 because Z probe cannot reach it
Warning: Skipping grid point X=0.0, Y=-200.0 because Z probe cannot reach it
Warning: Skipping grid point X=200.0, Y=-200.0 because Z probe cannot reach it
Warning: Skipping grid point X=200.0, Y=0.0 because Z probe cannot reach it
Warning: Skipping grid point X=0.0, Y=0.0 because Z probe cannot reach it
Warning: Skipping grid point X=-200.0, Y=0.0 because Z probe cannot reach it
Warning: Skipping grid point X=-200.0, Y=200.0 because Z probe cannot reach it
Warning: Skipping grid point X=0.0, Y=200.0 because Z probe cannot reach it
Warning: Skipping grid point X=200.0, Y=200.0 because Z probe cannot reach it
Error: Too few points probedM98 P"config.g"
HTTP is enabled on port 80
FTP is disabled
TELNET is disabledM115
FIRMWARE_NAME: RepRapFirmware for Duet 3 MB6HC FIRMWARE_VERSION: 3.3 ELECTRONICS: Duet 3 MB6HC v0.6 or 1.0 FIRMWARE_DATE: 2021-06-15 21:45:56Config.g:
; General preferences
G91 ; send relative coordinates...
M83 ; ...but relative extruder moves
M550 P"Hangprinter" ; set printer name; Network
M552 P192.168.2.1 S1 ; enable network and acquire dynamic address via DHCP
M553 P255.255.255.0
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet; Drives
M569 P0.0 S0 ; physical drive 0.0 goes forwards
M569 P0.1 S1 ; physical drive 0.1 goes forwards
M569 P0.2 S0 ; physical drive 0.2 goes forwards
M569 P0.3 S1 ; physical drive 0.3 goes forwards
M569 P0.4 S0 ; physical drive 0.4 goes forwards
M584 X0.0 Y0.1 Z0.2 E0.3 U0.4 ; set drive mapping
M669 K6 A0.0:-2265.0:0.0 B1725.0:1100.0:0.0 C-1740.0:1120.0:0.0 D0.0:0.0:2666.0 P1500.0
M350 X16 Y16 Z16 E16 U16 I1 ; configure microstepping with interpolation
M92 X92.90 Y92.90 Z92.90 E396.00 U93.00 ; set steps per mm
M566 X900.00 Y900.00 Z900.00 E120.00 U900.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z6000.00 E1200.00 U6000.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z500.00 E250.00 U500.00 ; set accelerations (mm/s^2)
M906 X1000 Y1000 Z1000 E800 U1000 I60 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout; Axis Limits
M208 Z-5 S1 ; set axis minima
M208 Z1500 S0 ; set axis maxima; Endstops
; WARNING: No endstops configured; Z-Probe
M558 P0 H6 F120 T6000; disable Z probe but set dive height, probe speed and travel speed
G31 P500 X0 Y0 Z0
M557 R400 S200
;M557 X-100:100 Y-100:100 S100 ; define mesh grid; Heaters
M308 S0 P"temp1" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp1
M950 H0 C"out1" T0 ; create nozzle heater output on out1 and map it to sensor 0
M143 H0 S270 ; set temperature limit for heater 0 to 270C
M307 H0 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M140 H-1; Fans
M950 F0 C"out7" Q500 ; create fan 0 on pin out7 and set its frequency
M106 P0 S0 H0 ; 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 H0 ; set fan 1 value. Thermostatic control is turned off; Tools
M563 P0 S"Extruder" D0.3 H0 F0 ; 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; Custom settings are not defined
M564 S0 H0 ;allow move without homing
; Miscellaneous
M501 ; load saved parameters from non-volatile memory
T0 ; select first tool -
Can you try with a different M557 command?
Try
M557 R200 S50 -
@phaedrux
That one still says it can't reach the points with same procedure as before. Just many more points.g29
Warning: Skipping grid point X=-100.0, Y=-150.0 because Z probe cannot reach it
...
and so on. -
Thanks for testing. At this point we will have to wait for DC42 to return from vacation to be able to investigate further.
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@phaedrux Thanks for feedback. Sorry for being a pain with this. I've run into the limit of my knowledge.
Interesting test Tobben suggested on discord. I set the home position around z150 and sent a g1 z-100 command in absolute mode. It allowed it. The lines didn't maintain tension which is not too surprising asking for something so far out of norm. But there was no error. Hopefully that helps with diagnosis.
