Issue with Z-Axis

Snapmaker 2.0
1

Hey, I’m calibrating the Z-Axis at every start of the SM. When I start the job the SM heating up and drive to the holding position X0, Y0, Z0. But Z isn´t 0 it is round about -0.2mm. So when the heating is finished, the nozzle will drive through the heating bed and creating a little goove. Also at the start position of the job the nozzle won´t go up. What can this happen and what can I do?
Thank you.

SMA350 V1.14.3_20220617 with ControllVersion: V4.4.17, I’m creating the jobs with Luban and also with Ultimaker Cura

2

When I drive manually with the Printer-head, the nozzle is touchig the surface of the heating-bed at Z+6mm. Can I change this offset to 0?

3

Regarding to page 16: I can’t adjust the nozzle/the sensor to an difference of 1mm it is about 1.5mm. I can’t put the sensor lower, so I will come to 1mm. Is this the problem? It isn’t possible to put the nozzle deeper inside the head.

4

Don’t calibrate every time—it’s sufficient to do so after changing the bed, head module, nozzle, or heat sink.

Check to make sure you assembled your Snapmaker correctly—doing it wrong can lead to weird levelling issues.

Redo the bed level routine and when you calibrate the distance above the bed at the last point, put it 0.2mm above where you think it should be and see if it stops driving through the bed when homing.

5

Thx Ellory, ok. I found the issue, the nozzle wasn´t at the right deep in the head. But one problem I have continiously. The first layer is perfect but the secound layer ist -Z / under the first layer. The nozzle decrease there level not increase. The snapmaker drives in the correct direction Z when I do this manually. I use Ultimaker Cura, is there any special think to do, that the Snapmaker prints upstairs und not Downstairs?

6

@RichiS could you send the gcode data? and could you make a screenshot of cura where the layerhight is discribed?

7

Hello Jwillew,

thank you for your fast answer.

You can find the Gcode attached to this mail.

When you need something else, don´t hessitate to tell me.

Thank you very much for your support.

Best regards

Richard

Bildschirmfoto vom 2022-10-14 13-29-32.png

S2A_20x20x15_mm_hollow_cube.gcode (500 KB)

8

I will share my test results today in the evening with you

Schöne Grüße :wink:

9

@RichiS Just for understanding, how do you notice that the nozzle decrease the height after the first layer? Does it crash into the bed? Do you have some pictures? Is there a nofication on the screen?

And my next question, what material do you print?
your temperature seems pretty high.

10

I can see it at the axis and also at the heating-bed and the first layer.

Yes Iĺl send you a movie but I can do this at monday first, sorry.

I will print ABS-PC :wink:

11

@RichiS
Is it one of your first prints or did you print diffrent parts before?

12

I’ve print at an Ender 5 plus with PLA and ABS but this printer isn’t not enough for ABS-PC so we bought a Snapmaker, also because of the other 2 functions. But you are right I’m not a pro at printing.

13

Did you try to print PLA with the SM? Maybe there are some issues with the pre-sets for ABS in Cura.

Do you use “Düse zwischen den Schichten Abwischen”? Maybe this is causing the problems?

14

Potter is writing me via Email, for your information. I don´t like to bind 2 persons with my problem.

“Is this my first print”: No it isn´t my first print but I’m not a pro. If’ve printed for maybe 20 hours before.

“Did you try PLA…”: Yes I´d try PLA before but there is the same result. And no I don´t use “Düse zwischen den Schichten abwischen”.

15

Okay, please let us know if you find a solution together with Potter. I am also interested in the reason for this issue =)

16

Yes ofcourse I will share with you. I will make a summery of all details.

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17

The problem I’ve had you can read at the top.

I find out, that the manual steering is working well but to set the Z-offset is inverted. Mr. Potter told me to reset the whole system incl. the touchpanel. I’m not shure if I can discribe it here how to do?! After the reset, the Snapmaker working perfect and printing at the moment the ABS-PC. The secound layer is over the first layer and not under :wink:

→ issue is solved

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