XY Gap

Vertex 3D Printer Vertex - Issues while printing
1

Hello,

I bought this kit 2 weeks ago, after assembly, first print few days ago, and there is a problem,

I want to print this model (http://www.thingiverse.com/thing:606083/#files)K8400 XY carriage alignment helper

When the printer make the first layer, I have this result:

XY%2Bgap.png724×543

But after this step I’ve check if all the pulley are good and if the belt is ok. I don’t find the solution to this situation.

Do you have ?
Thanks

2

I think you have some shifted layers…
Check if the carriage is aligned and if there is almost no resistance when you move it by hand.

Cheers,
Dylan

3

Thanks

I think to it too, but that’s reason that i want to print this model to solve it, but I hope it was not a perfect alignement but at least minimum to print this part.

I will check tomorrow evening.

After disassemble the 4 upper rods, I noticed the X is fluid but the Y is not very fluid, there is a “hard point” during the movement. I done this test w/o the belts.

4

[quote=“oli114fr”]After disassemble the 4 upper rods, I noticed the X is fluid but the Y is not very fluid, there is a “hard point” during the movement. I done this test w/o the belts.[/quote]There should be absolutely no resistance in any direction without the belts.

5

Ok

But now i need to disassemble the head print to control the lenth of x & y axis, perhaps that’s the solution to solve it.

6

It kind of looks like you need to reposition the parts so they are stacked one on top of each other along the Y axis.
It looks like you are trying to print outside of the printers boundaries X axis.

7

But before print lauching i done an auto-home. During the print, there is some moments when the x/y movements are making some “pause”, perhaps this is a consequence of the “hard point”?

8

You don’t need to dissemble the head. Just take the belts off and see how easily the head moves. If there’s any resistance, then they’re not parallel. Once it’s perfect, put the belts back as loose as you dare and keep checking the movement has no resistance other than the motors. The looser the belts the more easily the head will move, but if the belts are too loose then they can come free of the clamps during a print - and you really don’t want that to happen. Trust me!

9

You could also read this article from the Wiki about the position of the clamps.

10

Thanks for your help to everyone.
Today, i disassemble the carriage systeme and clean up all the oil on the rods into the brass sliding system. After that I checked length of each axe. And I change the driver X, it’s was burn at the reception i bought somes on the market but the voltage hasn’t check into the factory.

Before attach belts, i checked the free movement of all axes, and this is good and no hard point, no resistance.
I launch a first print, and fail, during the print there is some waited time and the print was not good and look’s like my first picture. I checked driver’s voltage and I put the good one.

I launch a empty 25 mm cube to test the new configuration and there is a good print until now, I need to wait few minutes to get the finish part.

@Raby: I read this wiki, tks, but for the clamps i need a fully fonctional printer to get this parts. I will ask to my colleague to get this and control the perfect alignement.

11

Yep, the old chicken and egg dilemma ;).
If the axis are moving freely from side to side you’ll then have to check that the belts are not too tight.
Try moving the axis several times from end to end with the manual commands of the LCD. There should be no friction at all.