Hej,

https://duet3d.dozuki.com/Wiki/Gcode#Section_T_Select_Tool documents pre RepRapFirmware 2.03 behavior regarding when the tool offsets are applied. It says they apply only after tpost#.g is executed. It would be nice to clarify that beyond the firmware release notes.

Thanks

The Select Tool documentation doesn't reflect that. I'm just trying to get the documentation fixed. There is no issue with the actual behavior.

@barbarossa-cologne stall detection seems to be missing for the C motor, see E3D's config.g

a homec.g file is needed. It contains the instructions to drive the C axis until the stepper drivers detect a stall. E3D's sys files are on github, see their homec.g file

The Select Tool documentation doesn't reflect that. I'm just trying to get the documentation fixed. There is no issue with the actual behavior.

It is the following section

3. If all axes have been homed, run macro tpre#.g where # is the number of the new tool
4. Set the new tool to its operating temperatures specified by the S parameter in the most recent G10 command for that tool
5. If all axes have been homed, run macro tpost#.g where # is the number of the new tool. Typically this file would contain at least a M116 command to wait for its temperatures to stabilise.
6. Apply any X, Y, Z offset for the new tool specified by G10

Step 6. is since 2.03 already done in step 4., See the upgrade notes for 2.03 or dc42's comment in https://forum.duet3d.com/topic/16483/extrude-in-tpre/13

Hej,

https://duet3d.dozuki.com/Wiki/Gcode#Section_T_Select_Tool documents pre RepRapFirmware 2.03 behavior regarding when the tool offsets are applied. It says they apply only after tpost#.g is executed. It would be nice to clarify that beyond the firmware release notes.

Thanks

Ooznest has a modified DuetWebControl for the Workbee: https://learn.ooznest.co.uk/Guide/How+To+Use+WorkBee+Control/22

Source repository: https://github.com/lockryan/DuetWebControl/tree/workbeecontrol

@Danal said in RRF3RC1 - M585 probe does not stop when switch closes:

@jannau I take it you are running in CNC mode at the instant the probe occurs? I may try that as well.

yes, I'm using CNC mode. I just tested with aluminium foil that the probe move stops on contact.G31 K1 (in my case for probe 1) was helpful to debug the probe behavior.

I guess in your case the probe move is stopped by the machine limits or endstop and the tool offset is consistently set to 0.39 due to the Z trigger height of the probe. G31 K1 displays the Z trigger height.

G38.x might be another option for probing. It currently doesn't respect relative positioning. It is annoying for probing a work coordinate system but for probing tool offsets at known machine coordinates it should be less of a problem.

I'm currently building a E3D tool changer with a Duet 3. A couple of caveats:

• wiring kit requires recrimping and motor wires might be replaced
• mounting holes are incompatible
• sensorless homing will require tuning, I opted to add mechanical end stops for X/Y

I will only use 2 tools until extension board or the tool boards come available. You will need at least one external stepper driver if you want to use the Duet2. 5 internal steppers allow only 1 tool since 4 steppers are needed for motion and the tool changing lock.

M558 K1 P8 F60 C"!^io3.in"
G31 K1 P100 ; required for triggering with 3.0-b12
...
M585 Z50 F120 S1 P1
G10 P1 X0 Y0 Z0 ; probing is using T1, reset tool offsets to set WCS offsets
G10 P1 L20 Z0

Works here as as intended on a Duet 3 controlled CNC to set WCS.

There is M675 to probe the center of a cavity. This should simplify the probing for metal on metal contact. Unlike for CNC work coordinate systems there doesn't seem to way to set tool offsets relative to the current position. So without extensions it can't currently not be for setting tool offsets. If WCS are useable in 3D printing mode each tool could probe and use a separate WCS instead of tool offsets.