print not printing on bed y axis problem maybe?

[abecher]

I have a dual extruder i3 printer from geeetech and when I go to print the location on the computer and the location on the actual print bed do not correspond. The y axis is printing at the top of the bed and it is not able to print anything other than a small line without hitting the y endstop. Does anyone have any idea what is wrong I have spend weeks with tech support trying to fix it. It is like the printer doesnt know where the y axis is or thinks it is in the middle of the bed when it actually isnt.

adam

[ggg666]

I have a dual extruder i3 printer from geeetech and when I go to print the location on the computer and the location on the actual print bed do not correspond. The y axis is printing at the top of the bed and it is not able to print anything other than a small line without hitting the y endstop. Does anyone have any idea what is wrong I have spend weeks with tech support trying to fix it. It is like the printer doesnt know where the y axis is or thinks it is in the middle of the bed when it actually isnt.

adam

Hi,
What you exactly mean by saying " a small line without hitting the y endstop"?And could you attach some videos？
BTW,are all the status of your endstops normal?

[abecher]

Sorry for the confusion, I mean that it prints at the very edge of the bed so it cant move any further in the y direction. All my end stops are set in the printer settings to 0. Is that what you mean by their status? When I send the m119 command to the printer it will register them as triggered or open depending on if they are triggered or open so they are working correctly. The video isnt attaching but here is a picture of where it is printing at. Note that in the software the part is placed in the center of the bed but once the code is compiled and actually starts printing the y axis isnt printing in the center of its travel. So my y axis print area is 200mm and I tell it to print at 100,100 (dead center) it seems to be printing at 100,0.

[ggg666]

I don't if the two article will help you,anyway you can have a try:
http://www.geeetech.com/forum/viewtopic ... 819#p27819
http://www.geeetech.com/forum/viewtopic ... 247#p31247

[abecher]

The first link ai have tried and it didnt change anything the second one I have not so I will and let you know me results. In the mean time do you have anything else I try? Before I print I can manually control each axis and when I tell the y axis to move away from home, at 0, 100mm it does and is in the center of the bed. So the motors respond with the correct distance. It is only when I load a print the y axis goes funky.

Another thing is when I make a 1x1x1 block in solid edge and export it as an STL then bring it into repieter host the block shows up on the screen as suppperrrr small I have to scale it up by at least 10X to get it to a half inche per side. I dont know what that means but it could be linked to the y axis problem.

Just trying to give you as much information as possible. Thank you for the help so far, ai hope I can figure it out.

Adam

[ggg666]

The first link ai have tried and it didnt change anything the second one I have not so I will and let you know me results. In the mean time do you have anything else I try? Before I print I can manually control each axis and when I tell the y axis to move away from home, at 0, 100mm it does and is in the center of the bed. So the motors respond with the correct distance. It is only when I load a print the y axis goes funky.

Another thing is when I make a 1x1x1 block in solid edge and export it as an STL then bring it into repieter host the block shows up on the screen as suppperrrr small I have to scale it up by at least 10X to get it to a half inche per side. I dont know what that means but it could be linked to the y axis problem.

Just trying to give you as much information as possible. Thank you for the help so far, ai hope I can figure it out.

Adam

Strange thing...Did a slicer software cause this?How do you think?
And,try my gocode file to see if there is a difference:

plate.zip

(71.01 KiB) Downloaded 534 times

[abecher]

thank you for the gcode but it did the same thing as always

another thing to note after I attempt a print and realize it isnt working I hit either emergency stop or kill print then the printer goes home. When this happens the x and z home just fine but the y axis just goes to the end stop and tries to keep going. In other words after a print the printer doesnt know where the y axis is.

It has something to do with when I load a print in I think because when I tell the y axis to move away from the end stop 50mm it does it no problem all the way to 200mm (which is my max bed size). I can also home it no problem it is only when I load a print that it gets messed up.

[ggg666]

thank you for the gcode but it did the same thing as always

another thing to note after I attempt a print and realize it isnt working I hit either emergency stop or kill print then the printer goes home. When this happens the x and z home just fine but the y axis just goes to the end stop and tries to keep going. In other words after a print the printer doesnt know where the y axis is.

It has something to do with when I load a print in I think because when I tell the y axis to move away from the end stop 50mm it does it no problem all the way to 200mm (which is my max bed size). I can also home it no problem it is only when I load a print that it gets messed up.

Then i think the Y endstop status has some problems...
You can check it
http://www.geeetech.com/forum/viewtopic ... 168#p32168
and attach the status picture after you give it a M119 Gcode command.

[abecher]

Thank you I will. What is weird is the y stop works when i am homing the axis just not right after the print us cancled.

[abecher]

Do you want a screen shot of the m119 command when the printer is homed or when the x y and z axis are not touching the end stops?