Yeah, the gcode would answer a lot of questions. Have you tried the test crown? It is known good gcode and is good foe checking out the machine.
I’ll grab the gcode here in a moment when I get to my computer. And yes I did the test crown and it worked fine but then I messed with the firmware.
G91 ; Coordenadas en modo Relativo.
G0 Z1.270 ; Subir Z para ir a Origen y que no rasque la broca el material
G90 ; Coordenadas en Posiciones absolutas.
G20 ; Unidades en mm.
M84 ; Apagar Motores Paso a paso.
G28 X ; Ir a Origen X
G28 Y ; Ir a Origen Y
G92 Z1.270 ; Le indica a la Maquina donde se encuentra de manera relativa el (eje
Z)
; Estando por tanto el Punto CERO del Z a Z=-1.270
...
; *************************************
; ** INICIO DE CORTE **
; *************************************
M117 EN PROCESO... ; MENSAJE
;----->
G0 X22.624 Y22.743 Z1.270 F2540.0
G1 Z0.000 F508.0
G1 Y24.013 Z-1.270
G1 Y22.743 Z-2.540
G1 Y33.261 F1270.0
G1 X22.053
G1 X21.235 Y33.323
G1 Y21.235
G1 X22.841
G1 X22.678 Y21.981
G1 X22.624 Y22.743
G1 X23.881
G1 Y34.518
G1 X22.053
G1 X21.513 Y34.554
G1 X20.977 Y34.661
G1 X20.461 Y34.839
G1 X19.977 Y35.082
G1 Y19.977
G1 X24.954
G1 X24.583 Y20.449
G1 X24.281 Y20.978
G1 X24.059 Y21.550
G1 X23.925 Y22.145
G1 X23.881 Y22.743
G0 Z1.270 F2540.0
G0 X27.984 Y21.156
G1 Z0.000 F508.0
G1 X27.775 Y21.170 Z-0.209
G1 X27.567 Y21.212 Z-0.421
G1 X27.364 Y21.282 Z-0.636
G1 X27.173 Y21.379 Z-0.850
G1 X26.998 Y21.499 Z-1.063
G1 X26.843 Y21.639 Z-1.270
G1 X26.998 Y21.499 Z-1.479
G1 X27.173 Y21.379 Z-1.691
G1 X27.364 Y21.282 Z-1.906
G1 X27.567 Y21.212 Z-2.120
G1 X27.775 Y21.170 Z-2.333
G1 X27.984 Y21.156 Z-2.540
G1 X27.753 Y21.173 F1270.0
G1 X27.517 Y21.226
G1 X27.283 Y21.319
G1 X27.061 Y21.451
G1 X26.861 Y21.621
G1 X26.692 Y21.821
The PP was written in Spanish and I haven’t taken the time to translate it all to English for final output yet but pretty self explanatory. I have a decent understanding of GCode and I can’t see anything wrong with it so hopefully you can pick up something I missed.
GCode snippet is added to the thread now.
Does the z axis move in the correct direction down with - moves and up with + moves
It does, yes. All axis move in the correct directions when homing and manual moves. Base on the gcode that is getting put out by the software I imagine that it is moving in the correct direction based on those commands but it is hard to tell since they happen quickly and are 1-2mm distances, but I have no reason to believe they aren’t other than the fact that the machine raises too high on Z to start with. But if it were reading them backward I would assume it would drive by Z axis into my table.
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The G20 gcode is telling the machine to treat all units as inches. Is that intentional? I think that the feedarates (F2540 etc) are WAY too high when interpreted as inches per min.
I had modified it at one point to treat everything as inches since I designed the file in inches in Aspire and wasn’t sure if it should output as inches or mm. I’ve since learned it needs to match the machine, regardless of how the it was dimensioned in Aspire and actually did change it back to G21 in the GCode that is on the SD card for the machine but forgot to switch it in the one I posted.
I did just notice however that it is only set to do G28 for X and Y and then sets the Z manually, however when I begin the print it homes all three axis, so not sure what’s going on with that.
Is it resetting you z axis then?g92 1.27 sets the probe thickness to 1.27 inches here
The current process it does when I start the print file on the machine is: Home X, Home Y, Home Z, Raise Z far away from the material surface, Lower Z slightly, Begin tool path.
From the GCode it doesn’t ever call for a Home Z G28 yet it homes Z anyway. So could it be homing and then raising up then doing G92 Z1.270?
Did you perhaps change the firmware to default to inches?
Based on your description I would guess it’s first raising the Z1.270 inches (G91 G0Z1.27) then setting units to mm.
When you say it homes Z, what does it home to? Do you have a limit switch on Z?
Yes I have a touch plate for Z. And I might have, I’m about to test the clean refresh firmware and see what it does.
Well, I thought I did grab that one but apparently I grabbed another version that was based on that one somehow. I have that version now so will be testing in a few minutes.
It’s working!! Not sure if it was the fw or the new PP but it works beautifully now! Other than it pops up at the end with an error because it can’t turn the extruder temp off lol
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Congratulations even the problems are fun and keep you occupied in the end it’s a covered in dust 
Haha luckily I’ve got my shopvac set up for manual dust collection until I settle on a hose mount I like. Now I’m going to spend countless hours cutting random things out lol
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