Hi, we have a problem with k8400 3D printer. It seems the main board failure. I commented what happened if you have any solution to avoid running out of the printer these days. We will give a talk on 3D printing and committed to bringing this printer.
We have all kinds of parts printed with very good quality, with and without the PC.
We updated version of two extruders (although I have also tried to put the 1 extruder and not solve anything)
While printing a piece, the extruder 1 has been stuck (we have already fixed the atranque other times). As usual, I pressed the reset while “printing” but take PLA through the nozzle.
I used the option to manually extrude and extrude after a single 3mm has been reset and is no longer functioning properly. When trying to lower the bed, not down, not moving any engine. The only function that is running both the PC and from the display is to heat the extruder.
I rescheduled the plate and reset several times thinking that there is a problem in programming the micro but nothing. I tested the printer with the source laboratory and if I try to move a motor draws about 0.9A at 15V but the engines do not move even if consumption.
In any case rule out driver and engine fail because when I pressed the reset all working properly and it seems impossible that burn 4 while pressing the reset. I get the impression that fail the plate itself.
hi, can you measure the voltage of the psu? To check if that is working ok. Can you still see something on the LCD screen?
You can also open a ticket at support.velleman.eu/ and explain your issue but it i not very likely that your board is broken as some functions are still working?
The PSU is working. I tried another one and the same problem. I can see all options screen and move the cursor without problem. After choice the option (from screen o pc) the only option that working is “preheat PLA or preheat ABS”.
What you could do to track the issue :
From the controller board, remove all the stepper drivers and cables to the motors and the end-stops except one of the X Y Z axis (ex remove everything except the stepper driver, the motor and end-stop cables of the X axis).
Try homing your printer. If nothing happens remove the cables and the stepper driver from X and do the same for the next axis.
If you get one axis functioning keep the driver and the cables in place and proceed to the next axis.
I tried to check every driver with every axis, there was not combination that work. Like last time, only heater works, but heater has not driver to change. Any voltage control point on driver to check it?