I’ve had a Qidi Tech dual for about 1 month, printed about 6 items of various sizes and it has suddenly started making a dreadful grinding (or juddering) noise when moving front to back, (it’s fine left to right) anyone got any ideas ?
3 Likes
Check the cables going to the motors. Most likely it has gone bad. You can switch the x and y cables and if the problem changes then that is it. Quite common. You can contact QIDI and tell them and they should send new cables but it takes a long time to get them.
2 Likes
It came with some spare cables, I changed the one that could have been the problem but it seems to be worse. The head doesn’t seem to know where it is or supposed to be, it won’t even print the first line on the edge of the platform it just does a big blob.
Did you change the cable to the limit switch or the motor. Try both. If that doesn’t revel anything then try changing/swapping the limit switch’s. One of mine did the same type of thing recently and it was the cable to the motor that moves the X axis.
1 Like
I have now changed all the cables and swapped the limit switches but it has got worse, when the head gets to its
home position it keeps going (the limiter lights are both on) until I cancel.
Next thing would be to swap out the stepper drivers on the board.
Also, when swapping cables and limit switches did the problem change from the Y axis (original issue) to the X?
Sorry to appear a little thick what and where are the “stepper drivers”.
swapping the cables and limit switches made no difference.
Thanks for the help you are giving, it is much appreciated.
They are on the main board, there is one for each motor and are right in front of where the cables plug in. You probably got a spare with the printer.
Ok, swapped them over, no change, swapped for the new one that came with the printer, no change.
Odd. Still sounds like a bad cable. It’s just what mine did a few weeks ago. When I swapped the cables it was hard to tell the problem had gone from the X axis to the Y until I kept moving the head to different areas and then would home everything. One thing I did was move it only in one direction and leave it homed in the other then home and see what happened. In other words leave it against one limit switch and move it off the other and then home and see what happens.
Probably should contact QIDI via email. They are good about support.
I have the same problem. Contacted qidi they didn’t know what to do. Could you tell me step by step on how to change the cables ect. (I’m new to this)
I’ve tried swapping cables and everything else but the problem is still there. The motor set in the right hand corner continues to run even when everything hits the switches (which I have also swapped) don’t know what to do next.
Here is an email to the people at QIDI: qidi3d@qd3dprinter.com
I might take a video of the issue to send to them. That will help a lot.
As far as changing cables if you got a spare you could use that or swap the cable on the Y axis motor with the one on the x axis motor.
Unplug one end from the motor and unplug the other end from the board then replace with the other cable. Check the board that the plug-ins are marked where they go such a X-Axis.
I haven’t tried this and don’t know if it would cause an issue, I don’t think so, but plug one motor in leaving the other unplugged and see what happens. I might also try to engage the limit switches manually while the carriage is in the middle to see if it will stop the movement.
So, move the carriage to the near left, away from home, and then home all axis’ and while it is moving depress one of the limit switches and see what happens. It should stop going in that direction.
Also send a video to QIDI to help them see what is up.
Qidi suggested a couple of things which has stopped the grinding noise but the motor on the right still won’t stop running. They also suggested changing the motor driver, is that the same as the stepper driver ?
I also activated the limit switches and everything carried on moving,
could they both have failed at the same time ?
If you turn the unit on its side and take off the bottom cover you will be able to trace the cables from the board to the motors, they are easy to remove. If you try one, see if the problem persists, if it does try another one.
It’s a bit of a pain but it should sort out the problem.
Has anyone sussed this yet or has everyone given? My printer is doing the same thing
Anyone, I’m desperate my printer is doing the exact same thing
Have you contacted QIDI about it?
Hi, I have but they have been quite weak on suggestions and are all for sending a new printer which could take a while . Rather fix this problem so I know for the future. I’m thinking it’s 1 of a possible several things which have been mentioned on this thread or even screwed up firmware I thought because of how mine is behaving (the micro switches working in certain positions and not others). I was hoping someone would just say or remember the fix on here because this thread is from 6 months ago. Cheers for the reply
