Testing with 'Firmware Retraction'.

[toreae 0]

From gcode:

4    ;Layer height: 0.4

32    T1
33    M207 F75 S6.0 Z0.0 P40
34    M208 F60 S0

3582    ;MESH:PETG-TEST-Z-Seam002.stl
3583    G1 F900 Z5.6
3584    G11
3585    G1 F3600 X133.788 Y95.095 E1091.63095

3737    G1 X135.866 Y95.488 E1134.0468
3738    G1 X135.243 Y94.75 E1134.14316
3739    M204 S2000
3740    G10                                                                                  ;G10
3741    G1 F900 Z6                                                                     ;Z up 0.4
3742    ;MESH:NONMESH
3743    G0 F15000 X134.392 Y95.603 Z6                               ;Z no change
3744    ;TIME_ELAPSED:276.060882
3745    ;LAYER:14
3746    M204 S1000
3747    ;TYPE:WALL-INNER
3748    ;MESH:PETG-TEST-Z-Seam002.stl
3749    G1 F900 Z6                                                                  ;Z no change
3750    G11                                                                              ;G11
3751    G1 F3600 X133.788 Y95.095 E1134.22191
3752    G1 X133.187 Y94.703 E1134.29351

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This is how I want it! 'Z Hop Height' must be the same as 'Layer Height'. And no one ticked 'Z Endstop in Positive Direction'. This only gives 1 Z movement at layer change. 3 if you tune 'Z-hop' (Firmware Retraction).

As you can see, 'Extruder1' has 0.4mm 'Layer Height'. That's because I use a nozzle that is 0.6mm. Then I get under extrusion.

'Extruder(0)' has a 0.4mm nozzle. Then I usually use 0.25mm Layer Height.

By mistake I used 0.25mm 'Layer Height' on 'Extruder1'. That led to over extrusion.
It may be, when printing with PETG, that at the right 'Layer Height' you will get a nice Z-seam.

 

Again, thanks for all the help.