[FR] Zero extruders/temp sensors for TFT_LVGL_UI

[chaosmstr]

Did you test the latest bugfix-2.1.x code?

Yes, and the problem still exists.

Bug Description

I have a MKS Robin Nano V3.1 that I am attempting to set up as a CNC.

Following the directions from MKS, I can get a build that works just fine.

But a CNC has no extruder or temp sensors.

Using either 2.1.2 or bugfix-2.1.x gives the same error.

After setting extruders=0, temp sensors=0, and reverting all of the axis calls to { x, y, z } the build will not compile. I don't know enough to change this code myself, so I am reporting it.

Error details:

```prolog platformio run --silent -e mks_robin_nano_v3_usb_flash_drive Marlin\src\inc\Warnings.cpp:67:4: warning: #warning "Your Configuration provides no method to acquire user feedback!" [-Wcpp] 67 | #warning "Your Configuration provides no method to acquire user feedback!" | ^~~~~~~ Marlin\src\inc\Warnings.cpp:731:6: warning: #warning "Motherboard DIAG jumpers must be removed when SENSORLESS_HOMING is disabled. (Define DIAG_JUMPERS_REMOVED to suppress this warning.)" [-Wcpp] 731 | #warning "Motherboard DIAG jumpers must be removed when SENSORLESS_HOMING is disabled. (Define DIAG_JUMPERS_REMOVED to suppress this warning.)" | ^~~~~~~ Marlin\src\lcd\extui\mks_ui\draw_change_speed.cpp: In function 'void event_handler(lv_obj_t*, lv_event_t)': Marlin\src\lcd\extui\mks_ui\draw_change_speed.cpp:61:21: error: 'class Planner' has no member named 'flow_percentage' 61 | if (planner.flow_percentage[0] < MAX_EXT_SPEED_PERCENT - uiCfg.stepPrintSpeed) | ^~~~~~~~~~~~~~~ Marlin\src\lcd\extui\mks_ui\draw_change_speed.cpp:62:19: error: 'class Planner' has no member named 'flow_percentage' 62 | planner.flow_percentage[0] += uiCfg.stepPrintSpeed; | ^~~~~~~~~~~~~~~ Marlin\src\lcd\extui\mks_ui\draw_change_speed.cpp:64:19: error: 'class Planner' has no member named 'flow_percentage' 64 | planner.flow_percentage[0] = MAX_EXT_SPEED_PERCENT; | ^~~~~~~~~~~~~~~ Marlin\src\lcd\extui\mks_ui\draw_change_speed.cpp:65:17: error: 'class Planner' has no member named 'refresh_e_factor' 65 | planner.refresh_e_factor(0); | ^~~~~~~~~~~~~~~~ Marlin\src\lcd\extui\mks_ui\draw_change_speed.cpp:81:21: error: 'class Planner' has no member named 'flow_percentage' 81 | if (planner.flow_percentage[0] > MIN_EXT_SPEED_PERCENT + uiCfg.stepPrintSpeed) | ^~~~~~~~~~~~~~~ compilation terminated due to -fmax-errors=5. *** [.pio\build\mks_robin_nano_v3_usb_flash_drive\src\src\lcd\extui\mks_ui\draw_change_speed.cpp.o] Error 1 Marlin\src\lcd\extui\mks_ui\draw_dialog.cpp: In function 'void btn_ok_event_cb(lv_obj_t*, lv_event_t)': Marlin\src\lcd\extui\mks_ui\draw_dialog.cpp:105:19: error: 'class Planner' has no member named 'flow_percentage' 105 | planner.flow_percentage[0] = 100; | ^~~~~~~~~~~~~~~ Marlin\src\lcd\extui\mks_ui\draw_dialog.cpp:106:19: error: 'class Planner' has no member named 'e_factor' 106 | planner.e_factor[0] = planner.flow_percentage[0] * 0.01f; | ^~~~~~~~ Marlin\src\lcd\extui\mks_ui\draw_dialog.cpp:106:41: error: 'class Planner' has no member named 'flow_percentage' 106 | planner.e_factor[0] = planner.flow_percentage[0] * 0.01f; | ^~~~~~~~~~~~~~~ Marlin\src\lcd\extui\mks_ui\draw_dialog.cpp: In function 'void btn_cancel_event_cb(lv_obj_t*, lv_event_t)': Marlin\src\lcd\extui\mks_ui\draw_dialog.cpp:192:20: error: 'class Temperature' has no member named 'setTargetHotend'; did you mean 'degTargetHotend'? 192 | thermalManager.setTargetHotend(uiCfg.hotendTargetTempBak, uiCfg.extruderIndex); | ^~~~~~~~~~~~~~~ | degTargetHotend Marlin\src\lcd\extui\mks_ui\draw_dialog.cpp:204:20: error: 'class Temperature' has no member named 'setTargetHotend'; did you mean 'degTargetHotend'? 204 | thermalManager.setTargetHotend(uiCfg.hotendTargetTempBak, uiCfg.extruderIndex); | ^~~~~~~~~~~~~~~ | degTargetHotend *** [.pio\build\mks_robin_nano_v3_usb_flash_drive\src\src\lcd\extui\mks_ui\draw_dialog.cpp.o] Error 1 =============================================================== [FAILED] Took 244.36 seconds =============================================================== Environment Status Duration --------------------------------- -------- ------------ mks_robin_nano_v3_usb_flash_drive FAILED 00:04:04.360 =========================================================== 1 failed, 0 succeeded in 00:04:04.360 =========================================================== ```

Bug Timeline

No response

Expected behavior

Setting Extruders to 0 should allow for compilation.

Actual behavior

Failed to compile calling 'class planner' variable.

Steps to Reproduce

set extruders to 0 set temp temp sensors to 0 set all axis calls to { x, y, z } instead of { x, y, z, e } format compile build

Version of Marlin Firmware

2.1.2

Printer model

home build

Electronics

MKS Robin Nano V3.1

Add-ons

Robin Wifi

Bed Leveling

None

Your Slicer

None

Host Software

None

Don't forget to include

• [X] A ZIP file containing your Configuration.h and Configuration_adv.h.

Additional information & file uploads

MKS_Robin_Nano_Config.zip

[ellensp]

mks_ui (TFT_LVGL_UI ) does not support non standard configs (like no extruders)

[ellensp]

In Configuration.h the following lines are invalid.

#define DISABLE_Xfalse
#define DISABLE_Yfalse
#define DISABLE_Zfalse

And why do you have #define E0_DRIVER_TYPE TMC2209 ?

[ellensp]

@chaosmstr try this I just created https://github.com/ellensp/Marlin/tree/allow-no-E-in-TFT_LVGL_UI

Compiles,but I have no idea how the display might break

See https://github.com/MarlinFirmware/Marlin/compare/bugfix-2.1.x...ellensp:Marlin:allow-no-E-in-TFT_LVGL_UI for all files edited