FIRMWARE_NAME:Marlin V1; Sprinter/grbl mashup FIRMWARE_UR

K8200 3D Printer K8200 - Computer related problems
1

hi,

So, i’m going throw this : fr_use_002 - CONNECTING THE PRINTER.pdf
And when I press connect, I don’t have this :
FIRMWARE_NAME:Marlin V1; Sprinter/grbl mashup FIRMWARE_URL:http://www.K8200.eu - velleman.eu PROTOCOL_VERSION:1.0 MACHINE_TYPE:K8200 - 3D PRINTER EXTRUDER_COUNT:1

I just spent 5 hours looking on the web and the forum for solution, I even saw your advice :

I need help, thanks.

2

Hi,

Did you check in device manager for the com port?
Are you using the correct com port in Repetier?
Is the baud rate set for 250000?
Is reset on connect set to disabled?
Did you check the output of the power supply, should be 15 VDC.
Did you try a different USB cable?
Did you try it on a different computer?

Hope one of these things helps.

3

Thank you for your reply!

[quote=“Wrong Way”]Are you using the correct com port in Repetier?
Is the baud rate set for 250000?
Is reset on connect set to disabled?[/quote]

I can’t because it’s blinking (maybe that’s the problem… short circuit? bad power supply?)

No, I don’t have any other cable like this. But the two leds (red and green) are on.

No, I only have this one.

Will any 15V power do the job?

4

Hi,

If you do get another one is should be 15 volts DC regulated.
The one that is supplied with the K8200 is 6.67 amps.
When you did try to measure it how many volts was the output?
If you disconnect it from the board does it still blink?
What’s the output voltage then?

5

Hi,

Connected, I only get a short pulse.

Disconnected, i get between 15 and 15,40V

6

You might want to check for cross wires or shorts.

But it sounds like you have a defective power supply.
If you are in the USA or Canada you can send an email to techsupport[color=#BF0000]at[/color]vellemanusa[color=#BF0000]dot[/color]com

If you are somewhere else the Velleman guys will give you instructions.

7

I don’t have shorts, I unpluged every single connector and tested the power supply with only the card and it’s still blinking.

I’m in Germany.

8

Did you press the reset button after pressing connect in Repetier?

9

Yes I have

10

Do someone have an Idea about what could be the problem?

11

Sorry, this information does not allow us to pinpoint the exact cause of troubles.
Please make sure the driver is correctly installed, try re-installing it, check on a different PC if possible.
If the problem persists, please return main board for inspection/repair/exchange.

12

If the power supply is blinking when connected to the printer, you either have:

  • a faulty power supply
  • your printer is taking a too high current

For the first you could try connecting the power supply to a load like a car lamp and see if the voltage stays constant at 15VDC (the lamp will not last long at that voltage though).

For the second: check if your board has any connection to the metal frame (it shouldn’t!!!). Look at the rear of the board.

Third thing:
Remove all connections on the board except the power supply and remove all the motor driver modules.
Then turn on the power supply. Is the PS still blinking then?
If not, re-install the motor driver modules one by one and check every time inbetween. Install the driver modules only when the printer is NOT powered.

However: without a constant 15VDC reading on the blue terminals you will never get the printer to work correctly.

Regards

13

thank you, I´ll try

14

Hi, some news :

I tested with another 12V supply, same result.

The board was defect. I got a new one with the warranty.

I have succesfully done does steps : fr_use_002 - CONNECTING THE PRINTER.pdf

Thanks for the help :slight_smile: