Open curcit heatbed / Core-XY Mirrored X and Y

dc42

The heater sensor problem is probably because your M305 P0 command is set up for a 10K bed thermistor but you probably have a 100K thermistor. Change T10000 in that command to T100000.

To fix your mirrored motion, you probably need to swap the X and Y motor connectors.

AS-3D Druck

Ok thx, i will try that and the Probe?

AS-3D Druck

I swaped the connectors and still the same. (did that 3 times to check that i did nothing wrong)

dc42

See https://duet3d.com/wiki/Configuring_RepRapFirmware_for_a_CoreXY_printer#Movement_section for how to get X and Y moving the right way.

Regarding your capacitive sensor, if it has a LED that is supposed to light up when it is triggered but it is not doing so, that is an issue either with the sensor or with power to the sensor.

AS-3D Druck

I solved the Issue with the Mirrored Axis like this:

[[language]]
M569 P0 S1 ; Drive 0 goes forwards
M569 P1 S0 ; Drive 1 goes forwards

And it looks like the Probe don't wanna work.
It got a red LED on it and it lights up when it is close before touching the Bed.
So the Sensor opens if the Buildplate is close enough to it. (PNP NO)

This is what i tryed in the config:

[[language]]
M558 P1 X0 Y0 Z1 H1 F120 T6000 I1 ; Set Z probe type to unmodulated, the axes for which it is used and the probe + travel speeds //I1 = reverse trigger mode
G31 P600 X64 Y30 Z2.5 ; Set Z probe trigger value, offset and trigger height

dc42

[See next post] ~~You need to set type 5 (P5) in your M558 command, not type 1~~. See https://duet3d.com/wiki/Connecting_a_Z_probe#PNP_output_normally-open_inductive_or_capacitive_sensor. Also, the dive height (H parameter in M558) is too small, I suggest H5 until you know the bed is flat and level enough to use a smaller value.

dc42

I just realised that setting probe type 5 won't work with the high values of resistor you are using in your voltage divider. So you will have to use type 1 after all.

With type 1 configured, what readings do you get in the Z probe box in the web interface, when the probe is/isn't triggered?

AS-3D Druck

I did what you said but it dosen't work.

I tryed to remove the I1 and can see on the Webinterface that it is triggered. (but it is not)
I tryed a value of H10 with the same result.

I measured with my Multimeter that the Probe send in to the in pin 5,48V on not triggered and
on triggered 7,83V.

Is this the Problem?

Dougal1957

Also wont that Potential divider be putting 4.8 volts onto the sense line which should 3.3V

AS-3D Druck

Thx do you know how to do that?
I got only 5x 150k Ohm and 5x 100k Ohm.

I tryed to calculated that, but it looks like that i got not a talent for that. sry