Hang printer - Print stops with mesh leveling
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@fcwilt Yes.
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@shinomori said in Hang printer - Print stops with mesh leveling:
m557
Grid: X-200.0:200.1, Y-200.0:200.1, radius 400.0, X spacing 200.0, Y spacing 200.0, 9 points
G30 works. G29 still throws the:
Warning: Skipping grid point X=200.0, Y=200.0 because Z probe cannot reach itAlright. I'll have to get DC42 to take a look. It may be a bug.
At this point it would be helpful to be able to test in standalone mode so that we could narrow down if the problem is with the firmware or with DSF on the Pi.
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@phaedrux
That would be with direct USB connection?
Or is there a way to do it direct with network cable?Mounted on the ceiling connecting through wire with laptop is a challenge. Our print area takes up a 13ftx13ft space.
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Standalone mode means that the Duet has a direct network connection and an SD card is needed in the Duet with your config files and the files for DWC. The Pi isn't used in this mode. No direct USB connection, but the Duet3 requires ethernet. So that may be a problem if you were depending on wifi for the Pi.
https://duet3d.dozuki.com/Wiki/Getting_Started_With_Duet_3#Section_Running_in_standalone_mode
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@phaedrux
Yeah we are relying on the PI.We have no networking in this building yet. The pi is connecting to a wifi hotspot on my phone and I'm using that to talk to the printer.
If I can use a network cable to go direct to my laptop I can probably make it work.
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@shinomori said in Hang printer - Print stops with mesh leveling:
If I can use a network cable to go direct to my laptop I can probably make it work.
Yes if you can route the cable that would work. You'd need to manually set an IP address for the Duet in config.g and then manually set an IP address on your laptop. Both IP addresses must be in the same subnet. Then you can connect to DWC via the Duet IP.
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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.
