Completed assembly heaters en vents work, motors NOT

K8200 3D Printer K8200 - Assembly and user manual
1

I finished my assembly yesterday and connected the printer to my notebook.
I am able to:

  • turn on/off ventilator,
  • turn on/off bed theater,
  • turn on/off extruder Hester,
  • read temperatures.

I am unable to:

  • move X-axis,
  • move Y-axis,
  • move Z-axis.

I followed the manual correct and ended at the first movement of the Z-axis,
because it dit not move. So I tried the above possibilities.

I really hope someone van help.

2

Did you measure and set the stepper driver reference voltages?
Did you flash a different firmware version?

cheers,

Christian

3

I did measure and adjust the the driver reference voltage to 0,425V.
I did not flash a different firmware version. Should I do this? It was not in the manual.

Thanks for your reply!

Rob

4

Now suddenly the X-axis is working.

Other axis stil not working. Also the extruder doesn’t work!

5

Recheck your motor wiring for possible open circuits, maype the ribbon cable or solder joints are faulty.
Also check for possibly switched wires to the motors, which will result in stalling them.
The polarity is important when connecting the motor coils.

cheers,

Christian

6

To add on to what Christian is saying 0.55 works better.

7

Hi Christian and Wrong Way,

Suddenly all engines started working. I still don’t know what the solution is.
Then I turned the voltage up to 0.5V to make the engines run smoother.

The new problem that occured is that my Z-axis does not run smooth.
So now i’m loosening the screws and refastening them and trying to make
the movement smoother.

Greetz

8

Strange that it suddenly works.
But hey…

9

Fur ball on the data line?
Lol

10

[quote=“Wrong Way”]Fur ball on the data line?
Lol[/quote]
who knows … :wink:

11

My next problem: Z-axis motor does not respond.

When i try to move the Z-axis the engine turns from left to right a few times really fast.
When i click Z-axis home button, the engine starts turning without stopping even when i press the end-contact.

Any ideas? I already checked the wiring at the engine. (Not at the board yet)

Thanks

12

On the end stop do you have the wires soldered to the outside posts?

13

I found this error. I switched one wire of the end stop with one of the engine at the board.

Next problem:
When i let the Z-axis return to home it doesn’t stop at the end stop.

Any ideas? Thanks in advance!

14

You may want to check the wiring for the end stop.
also meter the switch

15

I checked the wires from the board to the end stop and everything is correct.
When i press the end stop, the beeping sound of my multimeter stops.

I hope nothing is broke after the wrong wiring i did.

16

That’s not right.
Your meter should beep when it’s not pressed and stop when it is.
Like I said I said the bottom of the switch has 3 terminals make sure the wires are soldered on the outside terminals.

17

I did solder the wires on the outside terminals.

Could it be a inverted end stop?

Greetz

18

I guess anything is possible.
What happens if you measure between the center leg and one of the outside legs?

19

When i measure between the outside connections:

  • and leave the endstop in rest: beep
  • and i press the endstop: no beep

I flashed the latest firmware recently, but it didn’t help.

I measured the endstop on the solders on the back of the main board and the same happened as I mentioned here above.
So there is no wire problem i guess.

20

[quote=“Wrong Way”]That’s not right.
Your meter should beep when it’s not pressed and stop when it is.
Like I said I said the bottom of the switch has 3 terminals make sure the wires are soldered on the outside terminals.[/quote]

Looks like I wrote it wrong. It does what you say!