Y-axis reversed?

Vertex 3D Printer Vertex - Assembly and user manual
1

Hello,

i just finished the assembly, and wanted to start the alignment of all axis.

Unfortunately, when i select the Home function, the Extruder does not go to the back-right, but front-right.
Please check both video’s:

youtube.com/watch?v=hih1UIsIzr8
youtube.com/watch?v=J9kIMgdL2Uw

I checked all the cables, they are ok.
I can’t find the error.

Thanks

2

Check if the endstop for the Y-axis is working correctly and that there is no obstruction (oil, dirt, plastic parts) in it.

If it is blocked or at least reports blocked, then the head tries to move away from it first, before homing in again.

3

The endstop is on the back. But the head is on the front, so the printer does not move the head to the backside.
When i try to manually move the Y-axis with the menu, the head only moves a few mm, but not all the way to the back.

Here is another movie, you can also see the head position and the Y-endstop
youtube.com/watch?v=wsQ5p_87D7c

No errors on LCD shown.
Looks like the motor is turning the wrong direction.

4

That’s very weird could you check the colors of wires going to the motor and mainboard, I think the motor power is inverted? A wrongly made cable possibly?

Kind regards
JeAfKe

5

That’s also what i thought, but the colors are all the same.


6

Does it travel smoothly by hand across the y rods? If you move it by hand does it take excessive force to move it from front to back and the other way around? It might be a bad alignment also.

Kind regards
JeAfKe

7

You need a little force to push, but i don’t thing that’s too much.
everything moves smoothly.
But anyway, the head should move all the way back, and not front when i set to HOME !?

https://www.youtube.com/watch?v=AB3Jm7XPslg

8

Please try whether the endstop is working.

For that move the head to the middle, press home and block the endstop with a piece of cardboard or similar. It should stop.

Reason for that: Home is 200, 200 on this printer. Not 0,0
So if you move with the menu from 200 to 190 it should go towards the front.

If the endstop reports blocked to the mainboard, it tries to move the head forward first until the endstop is unblocked. It will do this until the endstop is free or a set amount of time has passed. That’s my reason for thinking it might be a blocked or not working endstop here.

9

Ok, seems that the end stop is not working ?!
I tried multiple times with stop closed and open, as you can see, the head always moves a few mm to the front.
https://www.youtube.com/watch?v=Wzwq1fJiODY

10

Swap it with the x endstop just to make sure.

Kind regards
JeAfKe

11

Make sure the plastic is completely over the optic sensor… This might be slided of a bit and block the signal.

Kind regards
JeAfKe

12

You saved my weekend :wink:
I swapped both stopper and now they work…
Don’t know why,the cables where correct.

Now for the next step :wink:

THANKS!!

13

Yeah the small black thingy where the other thingy slides in between is loose and caused a false positive reading. Enjoy your printer!

Kind regards
JeAfKe

14

Hi, we have this same exact problem. In fact, the video above (youtube.com/watch?v=Wzwq1fJiODY) was exactly identical to our problem. We tried swapping the X-End and Y-End sensors, (not once, but twice) yet nothing worked.

Please help!

15

The end-stop isn’t functioning so check

  • the wires for a bad contact
  • the end-stop : might be dirty (often some oil can get in there) : clean it.

When you say you swapped the end-stops, do you mean : you’ve swapped the cables on the controller board or you’ve removed the faulty end-stop and put another one in place.

16

With what version of Arduino did you program the board?