I recently assembled my K8200. Everything works like a charm, the connection is established and Extruder, Y and Z motor works with manual control. However, the X-axis one just makes some weird noise and clicks but it doesn’t move. I took off the belt so there is no resistance. I wired it to the Y-motor and it works, so it is not the motors fault. And I changed the PCB with Y-axis, and the Y moves with it, so the PCB works as well. If I adjust the voltage, the clicks and noises are quicker/slower but the motor doesn’t move on that connection.
I also discovered that one of the PCBs don’t have the screw to adjust the voltage and its stuck on 0.19V. But it is not what causing the motor failure because it doesn’t work with a PCB that is functioning properly on another axis either.
The PCB that does not have the adjustment needs to be replaced. Please request this part by means of the parts missing form.
As for the motor that is buzzing, if you tried everything (swapping motor, driver board, etc…), we must suspect the main board. In that case,please return the board for inspection/repair/exchange to:
Sorry, we do not sell direct.
You can order a spare board from your Velleman distributor (i.e. where you bought the kit).
Order code: VK8200/SP
(this board includes 4 stepper drivers).
I did have the same problem, I noticed that the x-motor is slightly lower in resistance value. This motor is 3.0 ohm compared to 3.9 for the others. More importantly, the axle was just moving left and right a bit in a strange way, it looked as if some wires were mixed up but it was like the manual described. Anyway, I changed the red and black wire in the four pin header and now the motor is running fine. I already readjusted the voltage to 0.550V and after putting it back to 0.425V it stalls again, so you also have to use the 0.550V setting. The other motors are running just fine with the original wiring and on 0.425V.
Perhaps it is the same with your motor and this will help you out.
Bert
ps, you have to swap the wires as well because it is running to the opposite direction. In my case the colors for the X-motor header are 1-yellow, 2-orange, 3-brown, 4-red.
Thanks for the advice, I tried it, but still just the suffering motor noise… I honestly dont know what could be possibly wrong now… The motor or the PCB is working on any other axis. the connectors are working. There is no scratch or short circuit anywhere on the motherboard… but on the x-axis connector none of the motors work…
Yes, the motor is working properly on another connector, and the PCB of the x-axis operates the Y-axis properly. So both the motor and the PCB is fine.
I swapped all piggies and every single one of them is working. Also, I went through from a range of 0,3-0,95 by 0,05 increments and nothing helps… But I noticed that if I put and press my thumb on the piggyback while the motor is trying to move, then it shakes and clicks stronger and louder
This is almost impossible, is there a problem with the header or connector so if you push the connector on another header it will make contact because of the mechanical strain, and if you push it back to its own header it will make bad contact?