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QuestionCura 4.4.1 (Linux) - Flipped prints and changing origin (not from centre to 000, but changing the location of 000)
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· Cura 4.4.1 (Linux) - Flipped prints and changing origin (not from centre to 000, but changing the location of 000)
It looks mirrored about the "Y" to me. That isn't hard to do when you want to, but it's near impossible unless you're trying. I guess a second option would be that somehow the Z got flipped? I have no idea how that could be done - or undone. Maybe the Z is moving negative steps (in a positive direction?)???
To mirror about the Y on purpose: All the X coordinates must be multiplied by -1 and the home offset is set to be X{plate width}. The effect of that is to have the print show up in the -X, +Y, +Z octant instead of the +X, +Y, +Z octant.
The plan view of the Cura build plate actually looks like this (X=0 at the left and +X going to the right, and Y=0 at the bottom and +Y going up).
But what you printed is this configuration. The X=0 is on the right with -X going left. The Y is the same as above. Another way to view this is that the Z direction is wrong and +Z should be going down through the build surface.
So my best guess (and it is definitely a guess) will be what I think is the simplest explanation: Something is wrong with the Z. Putting another guess on top of that guess - something changed in the firmware and it's interpreting the Z moves wrong/inverted/wonky/bonkers and the print is in the +X, +Y, -Z octant, but on top of the build plate.
At the beginning of a Cura gcode file are the Max and Min X, Y, and Z coordinates. What do they say?
What are you using for the Auto-Home command (G28 or maybe M162?)
What are your home offsets?
(I think I just set a record for the most question marks I've ever put in a post.)
Edited by GregValiant
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GregValiant 1,342
It looks mirrored about the "Y" to me. That isn't hard to do when you want to, but it's near impossible unless you're trying. I guess a second option would be that somehow the Z got flipped? I have no idea how that could be done - or undone. Maybe the Z is moving negative steps (in a positive direction?)???
To mirror about the Y on purpose: All the X coordinates must be multiplied by -1 and the home offset is set to be X{plate width}. The effect of that is to have the print show up in the -X, +Y, +Z octant instead of the +X, +Y, +Z octant.
The plan view of the Cura build plate actually looks like this (X=0 at the left and +X going to the right, and Y=0 at the bottom and +Y going up).
But what you printed is this configuration. The X=0 is on the right with -X going left. The Y is the same as above. Another way to view this is that the Z direction is wrong and +Z should be going down through the build surface.
So my best guess (and it is definitely a guess) will be what I think is the simplest explanation: Something is wrong with the Z. Putting another guess on top of that guess - something changed in the firmware and it's interpreting the Z moves wrong/inverted/wonky/bonkers and the print is in the +X, +Y, -Z octant, but on top of the build plate.
At the beginning of a Cura gcode file are the Max and Min X, Y, and Z coordinates. What do they say?
What are you using for the Auto-Home command (G28 or maybe M162?)
What are your home offsets?
(I think I just set a record for the most question marks I've ever put in a post.)
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