Build platform touching head / la plateforme touche la tete

Vertex 3D Printer Vertex - Issues while printing
1

Hi i m doing this post in english and french:

i finished to build my vertex k8400, all seems to be good but i have a problem with the z axis, when i use the “go home” , x and y axis are ok but the building platform rises too hight and i have to disconnect the power so that the platform does not touch the head of the printer =/

I try to turn the things for the z calibration but it seems to change nothing
Thanks you in advance if you can help me to find some answers

Bonjour j’ai fini de construire ma k8400 est j’ai un probleme avec l’axe z quand je fait un “go home” la plateforme monte trop haut et ne s’arrete pas et touche la tete d’impression, je dois donc debrancher le courant avant qu’elles ne se touchent et ne s’endommage, j’ai essayer de calibrer l’ae z en tournant la petite vis mais ca na pas l’air de changer grand choses =/

Si vous pouvez m’aider à identifier le problème et à le résoudre je vous en serait reconnaissant, peut être que c’est la calibration de l’axe z qui est mal expliquée sinon
en vous remerciant d’avance

2

If the light of the Z-Stop is burning the stop should work… if not then you might want to check the wiring!!

On the back on the left hand side (if you look from the front) there is the screw for the z axis stop adjuster located. turn this counter clockwise with the hex tool… give it a couple of turns and it should lower the stop…
And screw the 3 nuts all the way up of the bed… so that the bed is at it’s lowest… then work you way back up …

It is some fiddling but it should work ok!

3

Hi thanks for your answer,
i’ve check some wirings and now the plateform does not go up
when i do a “go home” it’s going a bit down and then stop

4

it’s goes a bit down each time i’m doing a “go home”
is this now a problem with calibration?

5

If it goes down you probably have an issue with the end-stop. If the wiring is OK then try cleaning the end-stop. If there’s some oil or dust cutting the light beam it won’t work.

6

When I make it go home, then the bed first move up from where it has ended the last job, and when it is at the top, it goes a bit down again, and then a bit up and are then finished with moving. and the display shows Z = 0.0
I think its the way it work as it had done so all the time and all works well ,also when it has finaly ended home, there is the distance 0,35 mm between bed and head.
alex in Denmark

7

ok i find the problem, on the mainboard a wire was a bit unpluged of the zstop , i plugged it a bit and now the go home go up and stop, far from the head but i thinks its will be ok after the calibration
Thanks for your answers
I will shortly say you if the problem is solved or not and if all is going ok

8

Cross fingers et bonne chance;)

9

arf now the platform touching the head again , and the z stop led is working correctly =/

mhensen i dont see the screw you was talking for the z stop adjuster , is it in the endstop piece?

10

Here

11

yep that’s what I thought, i try to turn counter clockwise, but the platform continue to touch the head of the printer
=/

Is there anything else i can do ?

Thanks for your help

12

If you are facing the back of the printer like in the picture you will need to turn the screw from the left to the right to lower the bed.
The more you turn the screw in the lower the bed will go.

If you look in the assembly manual on how the screw was installed you will understand the more you raise the flag the lower the bed.

I hope that make sense.

13

after watching carefully manual to check that I does everything good
i saw that the bed arms of my printer are probably upside down x)
so i hope this will work after changing the orientation ^^

stupid error of me but the pictures in the manual does not show them a lot ^^

i will post after having reorient the arms

14

after doing this , the auto home is now ok ^^
now juste have an other problem but i ll do a new post for it ^^ (about a MAXTEMP )
thanks you all for your help