Strangest issue yet, Z not moving during print

Veti

@cdl1701yahoo-com said in Strangest issue yet, Z not moving during print:

Looking at the gcode file looks like the z height does not change for this one until layer 3.

try a different slicer

cdl1701yahoo.com

I just tried a g-code file that I printed last week and worked fine now it does the same thing. It's almost as if the Duet is ignoring the z height.

I have Cura installed although I have never used it before, I may give that a try although I don't see why a g-code file that worked last week just fine doesn't work now. I have been using S3D.

cdl1701yahoo.com

Verified, Cura does the same thing.

jens55

Likely not the issue here since you tried a different slicer but at one point I accidentally changed the dialect for the slicer and things started to go real weird. Some instructions where fine but others were ignored.
Just mentioning it here for completeness sake.

Danal

Please post the first 50 lines, not counting any initial "; comment" lines, of a file that worked last week.

cdl1701yahoo.com

@Danal
First 50 lines does not give much but here it is.

G90
M83
M106 S0
M140 S65
M190 S65
M104 S0 T0
M104 S240 T1
T-1
G28 ; home XY axes
M561 ; Clear any bed transform that might be in place
M375 ; Load height map
T1
M116
G1 X0 Y0 ; Move to Purge extruder
G1 E10 F500 ;Purge extruder
; process 0.2 (PLA)(1)
; layer 1, Z = 0.200
T1
G1 E-1.0000 F2400
; feature skirt
; tool H0.200 W0.400
G1 Z0.250 F1002
G1 X165.432 Y153.219 F18000
G1 Z0.200 F1002
G1 E1.0000 F2400
G1 X166.378 Y152.243 E0.0452 F2400
G1 X166.427 Y152.195 E0.0023
G1 X167.429 Y151.281 E0.0451
G1 X167.481 Y151.237 E0.0022
G1 X168.540 Y150.385 E0.0452
G1 X168.594 Y150.344 E0.0023
G1 X169.701 Y149.561 E0.0451
G1 X169.758 Y149.523 E0.0023
G1 X170.913 Y148.807 E0.0452
G1 X170.972 Y148.774 E0.0022
G1 X172.167 Y148.132 E0.0451
G1 X172.228 Y148.101 E0.0023
G1 X173.463 Y147.533 E0.0452
G1 X173.525 Y147.507 E0.0022
G1 X174.791 Y147.017 E0.0452
G1 X174.855 Y146.994 E0.0023
G1 X176.149 Y146.582 E0.0452
G1 X176.214 Y146.564 E0.0022
G1 X177.532 Y146.232 E0.0452
G1 X177.598 Y146.218 E0.0023
G1 X178.932 Y145.969 E0.0451
G1 X178.999 Y145.958 E0.0022
G1 X180.348 Y145.791 E0.0452
G1 X180.416 Y145.785 E0.0023
G1 X181.770 Y145.701 E0.0451

Veti

@cdl1701yahoo-com said in Strangest issue yet, Z not moving during print:

Z1600

just for testing, can you half the z acceleration, jerk and max speed. 1600 is a lot of steps

cdl1701yahoo.com

@Veti
Done, no changes.
I have another printer that is down right now for a rebuild, I am thinking of taking the Duet Wifi out of that one and putting it in this machine to see if that makes any difference. I assume all I need to do is swap the SD cards?

Phaedrux

Do you have anything in your tool change files? Tpre tpost etc.

Yes you can swap the SD card for testing. I was going to suggest trying different drivers but if they move normally during other moves just not a print something else must be wrong.

Can you send m906 and m913 during a print to check motor currents?

Veti

@cdl1701yahoo-com said in Strangest issue yet, Z not moving during print:

M208 X0:358 Y0:361 Z0:400 ; Set axis min/max
M208 U0:200 ; Set axis min/max

thats not how M208 works in rrf.

M208 X0 Y0 Z0 U0 S1 ; set axis minima
M208 X358 Y361 Z400 U200 S0 ; set axis maxima

Veti

@cdl1701yahoo-com said in Strangest issue yet, Z not moving during print:

G31 P25 X-3 Y-39.3 Z0.00 ; Set Z probe trigger value, offset and trigger height
G10 P0 X0 Y0 Z0.69 ; Reset tool 0 axis offsets
G10 P1 X0.99 Y1.2 Z0.8 ; Reset tool 1 axis offsets

i think that is causing the problem.

G10 P0 X0 Y0 Z0.69 ; Reset tool 0 axis offsets
should be
G10 P0 X0 Y0 Z0 ; Reset tool 0 axis offsets

and the offset should be defined in G31
and the difference for the second one should be defined in G10 P1

cdl1701yahoo.com

@Veti
You were on to something Veti, I removed the Z Offset for tool 0, no change, so I removed the offset for tool 1 as well now it works fine. I know there is a way to set tool offsets in the tool change files but not sure how to do that.

@Phaedrux
Here is what is in my tool change files. The tool 0 files are the same aside from to tool pickup/drop off locations.

tfree1.g
G53 G0 X350 Y278 F25000 ; Rapid to the approach position with tool-0. (park_x, park_y - offset)
G53 G1 Y357 F2000 ; Controlled move to the park position with tool-0. (park_x, park_y)
M98 P"/macros/TOOL_CHANGE/Tool_Unlock.g" ; Unlock the tool
M400
G4 P500
G53 G1 Y278 F6000 ; Retract the pin.
M106 P6 S0 ; Fan off

tpost1.g
M106 R2 ; restore print cooling fan speed

tpre1.g
G0 X350 Y278 F25000 ; Rapid to the approach position without any current tool.
G1 Y357 F2000 ; Controlled move to the pickup position with tool-0.
M400
G4 P500
M98 P"/macros/TOOL_CHANGE/Tool_Lock.g" ; Lock the tool
M400
G4 P500
G1 Y278 F6000 ; Retract the entire tool.
M98 P"/macros/TOOL_CHANGE/Tool_Lock.g" ; Lock the tool
G60 S2 ; Save this position as the reference point from which to later apply new tool offsets.

Veti

@Veti said in Strangest issue yet, Z not moving during print:

G10 P1 X0.99 Y1.2 Z0.8 ; Reset tool 1 axis offsets

what you are configuring there is that the nozzle is 0.8mm above 0.
so in order to print it would have to move 0.6 (assuming 0.2 layer height) below zero.
yet normaly movement below 0 is forbidden (for good reasons)

cdl1701yahoo.com

@Veti
Yes, so I have two tools that get picked up by the tool head like what is done in the E3D tool changer. I am using a Bltouch as my Z-probe and it triggers the nozzle is around 0.4 to 0.6 above the bed so I applied those Z offsets in the G10. I may not be doing it right though....

JamesM

@Veti said in Strangest issue yet, Z not moving during print:

@cdl1701yahoo-com said in Strangest issue yet, Z not moving during print:

M208 X0:358 Y0:361 Z0:400 ; Set axis min/max
M208 U0:200 ; Set axis min/max

thats not how M208 works in rrf.

M208 X0 Y0 Z0 U0 S1 ; set axis minima
M208 X358 Y361 Z400 U200 S0 ; set axis maxima

@Veti
It was changed in rrf to allow you to set the min and max in a single line and that is how I do it on my CoreXY printer. This is my m208 line which works perfectly

M208 X-5:340 Y0:334 Z450

Veti

@JamesM said in Strangest issue yet, Z not moving during print:

It was changed in rrf

i missed that change

Veti

@cdl1701yahoo-com said in Strangest issue yet, Z not moving during print:

I am using a Bltouch as my Z-probe and it triggers the nozzle is around 0.4 to 0.6 above the bed so I applied those Z offsets in the G10. I may not be doing it right though....

do check again, because it explains exactly why it does not move for the first 3 layers.

cdl1701yahoo.com

@Veti
Yep that was the whole issue did two prints last night and all went successfully.
Thanks for the help and pointing me in the right direction!