Sorry I’m making another topic, but the problem is now different, thus deserves another name.
So I went thru the troubleshoot of the X & Y axis, adjusting every pulley, etc.
However now when I ask the printer to move, whether in auto home or with the ‘move axis’ command, it just doesn’t.
It sounds like it’s doing it , but it’s not doing anything.
After 40+ hours on the printer, I’m literally going crazy over this.
Sorry I didn’t read your other thread - but can you move the printhead by hand (don’t use too much force) does it move lightly/smoothly? If you try to spin the pulley directly on the x/y stepper motors, what do you feel? is it moving smoothly or do you feel any kind of resistance?
Mike
yep i can move it by hand, without any issue, and if i turn the pulley by hand it turns the other cables.
That is good ! - but when you move the pulley directly connected to the motor, does it move smoothly or is like ra-ra-ra-ra, like not really smooth like when you turn a bicycle wheel but like you can feel the steps of the stepper motor? - can you move the pulleys on the stepper motors for the x/y direction in the horizontal direction, I don’t mean turning them, but move them in/out on the axis?
(What I wonder is that you say that it sounds like the printer is working but the print head doesn’t move - so I assume that the stepper motors are working, but somehow the turning of the axis in the steppers doesn’t transfer into movement of the belts, so it could be that the pulleys are not tightly connected to the axis. Another thing could be if something is too tight, so the motors don’t have enough force to turn - but if you can move the printhead freely, then it doesn’t sound like that is the problem.)
Mikek
Thanks Mikek for your answer. You were spot on, I changed the screws on the pulleys with some bigger ones and it now seems to turn.
So I configured the printer until it was able to print, now it is printing but not as it should… it prints ovals instead of circles. I noticed that when i move the X axis with the computer or the printer, when I change direction is does only a small step in that direction, istead of a full 10mm. Do you know how I could adress this issue ?
Thanks
and when i move it manually, i feel like at some point there is a sound like ‘tak’ and less resistance for like 1 cm
ok, I have had a similar experience, you shouldn’t need to change the screws for bigger ones, that might actually do more bad than good, just tighten the originals. What you describe in the new situation sounds like the screws are not tight enough, or rather has been tighten on the wrong place of the axis.
If you look closely at the axis you can see that it has a flat side, the ideal situation is that the screw in the pulley on the stepper motor axis is on this flat surface, you can imagine that this makes the pulley bond strongly to the axis, if however the screw is tighten a bit of, so it is not flat to the flat part of the axis, then depending on which way the axis is rotating it will slip, especially when changing direction. It could also be other things that are wrong, but maybe check this first.
Mike