Hi,
I am trying to print any file, but everything I do, it is as fi the home axes were offset. I have tried to reset the settings on the Makerbot but it keeps on moving up to much, as shown in the video.
https://youtu.be/xhCz1OoN_RI
Does anyone know how to fix this, thank you
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My first guess is a bad cable.
Ok, first test. Move the head away on only one axis (away from one limit switch) but have it touching the other. So, leave it touching on the right but move it all the way to the front. Now do the home and see what happens. If it still moves toward home then the Y is ok.
Now leave it all the way at the back but move the head to the left and home again. Does it move to home?
Another test is to swap the cables to the stepper motors and see if the problem reverses.
A bad cable is the most likely problem. Next will be limit switches. Swap them to see if the problem changes. Last is the stepper drivers. Same thing swap and see.
I am a bit confused on your suggestion. I do feel like there is a problem with the limit switch. But you are saying to move the head, which I suppose it means the extruders, to the right topmost so do you mean like this: (picture)
I will try to swap the cables on the stepper motor. How would you go about testing if the limit switches are the issue?
Thank you
Yea, what you want to do is move the extruder so it is in its “home” position for one axis only. So move it all the way to the right and all the way forward. That way it is in the home position for X. Then when you use the home command if it makes the noise but still smoothly goes to the back of the printer then the Y is probably ok.
Reverse this by moving the extruder all the way to the back and all the way to the left. This put the X axis at its home position. Then again run the home function. See if it moves smoothly or not. If it is an issue related to the X or Y axis motor then one of these should have a problem when it homes which could mean a bad cable (very common). If both go ok then suspect the limit switch.
If the extruder moves fine until it reaches the limit then probably the switch.
So on the second attempt, all the way to the back and all the way to the left, I am checking for the X axis to move to the right? and on the first try I am checking for the base Y axis right?
Yes. The noise you are getting usually would mean that the motor can’t turn correctly so it is kind of stuck like it is trying to go both ways at once. Or it is at the stop and not being told to shut off.
One one of my printers it would move ok front to back but left to right it would just kind of sit and vibrate which turned out to be the cable for the X motor.
Actually a simpler test could be to move the extruder toward the near left corner and do the home. If the noise starts right away as it tries to move to the back right then more likely a cable. If the noise only starts when it gets to the back right or home position then probably limit switch.
It still could be something else but these would be the common things.
