On the X-axis print is not going well

Haloa
Here again a problem with the K8200

It prints for several minutes, and then suddenly makes the X-axis longer.

  • There is software 2.0.
  • This occurs on both the PC als with the VM8201.

The small PCB from the X axis already been replaced by another.
Then seems to go a little better but after one day the same problem.

Anyone have an idea.

Rob

You might want to post a photo with an example, it’s not easy to advise from your description.

Hi, you might want to check this entry of the Wiki.

This is a photo of the moving x-axis.

@raby : I checked voltages, they are all good. (0,48 Volt)

[quote=“Rob_G”]This is a photo of the moving x-axis.

@raby : I checked voltages, they are all good. (0,48 Volt)[/quote]

Increase the stepper voltage to 0.55V. That will run way better!

already tried 0,55Volts , same problem.

the x-axis moves smoothly, so no mechanical problem.

Check for a broken wire in the flat cable. It can cause that kind of shifting (intermittent contact).

Lower your jerk and acceleration settings to 15 and 3000.

Check that your toothed pulley is not slipping on the motor shaft.

Check the pulley (bearing on the other side) make sure it can spin freely.

ok, i check…

Thks

R

The voltage on x-axis drive is 0,55 volts

here 2 more pics to illustrate the issue.

R

all pullies are checked and ok.
This is the latest result

This is just a pure guess.

Did you recalibrate the Z axis height after you put the tape on the bed?
I looks like the nozzle is to close to the bed and dragging on the tape.

Hi Tristian,

Yes z as is good.

He is printing good for a few minutis.

I now change the X-Motor and the Y-motor with the two switch.

And he is printing now,

Rob

Hi,

He was working, 5 minutes.
And suddenly, the printer stops.

End give now:

Printer stopped due to errors. Fix the error and use M999 to restart. (Temperature is reset.Set it after restarting)

Anyone have an idea …

Rob

That error is due to the extruder reading to hot or to cold.
Check the temp in the software.
If it’s reading 0C you have an open (broken wire, therm 1 unplugged or the thermistor is broken)
If it reading over 600C you have a short in the wiring going to the thermistor.

If you measure the resistance to therm 1 (unplugged) check the wire side you should see around 100K ohms at room temp.

The thermistor is broken !!!

Thks.

Rob

Temperature is now ok.

The problem is now on the y-axis.

This means for me that the x- motor is ok

What now can I test…

Rob

Hi, if your using repetier V1.0.6 & sliced with Slic3r, try Cura (or the other way round).
I drew a 150mm square 0.35mm high & 2mm wide as a test tonight. The Gcode was correct but it would not print, it shifted layers. Sliced in Cura, feed rate was 1800 as opposed to 2100 in slic3r and it printed fine. The interesting bit is that on five attempts it printed the first two perimeters ok then shifted on each of the next three, yet the speed was the same on all perimeters.

Interestingly, turn it through 45 degrees & use your current silcer & I bet it prints fine. There is something I haven’t got my head round yet about speed when printing inline with an axis.

Thanks.
I now use Repetier V0.95 F

But I would sometimes like to have a response from Velleman.
Because you would say, they have more than 25,000 3D printers sold but a reaction forget it.
And I’m afraid it’s just another Arduino board is defective, and that would be the 3rd board are what goes in here,

Rob