Support for Tronxy XY-2 Pro

[maksymovi]

Description

Added configuration for the Tronxy XY-2 Pro.

Configuration currently is for a machine modified with a BLTouch. I make this clear in the Configuation.h file, and have instructions on how to enable the stock inductive sensor, kept it this way as I have not tested it this way.

[thisiskeithb]

I make this clear in the Configuation.h file, and have instructions on how to enable the stock inductive sensor

The configuration should be changed to use the stock probe with an option/flag at the top for a BLTouch, not the other way around.

[maksymovi]

I make this clear in the Configuation.h file, and have instructions on how to enable the stock inductive sensor

The configuration should be changed to use the stock probe with an option/flag at the top for a BLTouch, not the other way around.

I can change it to what I believe the right config to be for this but cannot test it given I don't have the probe. Would that be fine?

[thisiskeithb]

That works

[maksymovi]

Updated to fix this.

[g4m3r0]

The Z-homing does not work for me with the latest bugfix-2.1.x branch. It goes to the middle of the bed, then goes up two times and the z-homing is finished. It does not go down at all.

I've got a unmodified Troxy XY-2 Pro with the CXY-V6-191017 board.
Do you have any idea what could be wrong with the config or my environment?

[thisiskeithb]

The Z-homing does not work for me with the latest bugfix-2.1.x branch. It goes to the middle of the bed, then goes up two times and the z-homing is finished. It does not go down at all.

I've got a unmodified Troxy XY-2 Pro with the CXY-V6-191017 board. Do you have any idea what could be wrong with the config or my environment?

You likely need to change Z_MIN_ENDSTOP_HIT_STATE & Z_MIN_PROBE_ENDSTOP_HIT_STATE from HIGH to LOW.

[g4m3r0]

You likely need to change Z_MIN_ENDSTOP_HIT_STATE & Z_MIN_PROBE_ENDSTOP_HIT_STATE from HIGH to LOW.

Thanks for your reply! This actually was the first thing I've tried. But it resulted in the nozzle crashing into the heatbed.
I do use the CHITU3D B6 board and the chitu_f103 environment.

[thinkyhead]

It's possible the wrong probe pin is assigned, or the probe is connected to a different pin. Can you double check?

[g4m3r0]

@thinkyhead its all hard wired on that CXY-V6-191017 board.
Previously I had flashed an older marlin version from this fork https://github.com/rhapsodyv/Marlin , where the probe was working fine. But I had problems with crashes every now and then.

According to this schematics the probe pin matches the CHITU3D B6 configuration (10kΩ Pullup to +5V and 100nF to GND, then 20kΩ to MCU Pin124 PG9).
https://static.wikia.nocookie.net/tronxy/images/7/76/CXY-V6-19107_pinout_and_description.pdf/revision/latest?cb=20240502234640

I found this two issues with a similar issue:
MarlinFirmware/Marlin#21339
MarlinFirmware/Marlin#23677

I have tried to add the following suggested answers to the marlins setup method, but without any luck.
SET_INPUT_PULLDOWN(Z_MIN_PIN); SET_INPUT_PULLUP(Z_MIN_PIN);
or
GPIOA->BSRR = (1U << PG9);

I've also tried to uncomment
#define ENDSTOPPULLUP_ZMIN #define ENDSTOPPULLUP_ZMIN_PROBE

[thomas-haller]

I had to do the following modifications to make it running with my Tronxy XY2 Pro (no modifications):

// for the default z probe to work:
#define Z_MIN_PROBE_ENDSTOP_HIT_STATE LOW
#undef Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN
#define USE_PROBE_FOR_Z_HOMING

// for the default extruder to work:
#define DEFAULT_AXIS_STEPS_PER_UNIT   { 160, 160, 800, 186 } //values taken from https://github.com/rhapsodyv/Marlin/
#define INVERT_E0_DIR false

[thinkyhead]

So are the corrections proposed by @thomas-haller accurate? I will be happy to apply the changes if no one else is in the mood to do so.

[thinkyhead]

See 9e7af81

[thomas-haller]

I didn't expect it to get merged 😀
Else I would have opened a new issue

I just found yesterday that you need
#define E0_AUTO_FAN_PIN FAN2_PIN
in Configuration_adv.h to get the extruder fan working

[BeowulfNode42]

I just found yesterday that you need #define E0_AUTO_FAN_PIN FAN2_PIN in Configuration_adv.h to get the extruder fan working

The config that works on my CXY-V6-191017 board in my X5SA Pro also needs that line in its configuration_adv.h. Then in the pins_CHITU3D_common.h the existing value for #define FAN2_PIN PG14 works fine.

I keep trying to refer to the code in https://github.com/tronxy3d/F4xx-SIM480x320 for this board, but it's not easy as its old Marlin and they've replaced large sections with files in strange places and things are sometimes called different things. However to get the Z axis homing I had to uncomment //#define PINS_DEBUGGING in configuration_adv.h so I could use pronterface and the gcode M43 as the M119 gcode command initially showed no change and no hit state for my Z-axis inductive probe triggered or not.

If you're still having troubles with your Z-axis homing, check with the M119 and M43 gcode commands to see what's happening.

[thinkyhead]

The config that works on my CXY-V6-191017 board in my X5SA Pro also needs that line in its configuration_adv.h.

And it is already so in the X5SA Pro example configuration… which should be merged pretty soon. If it looks good to you.

but it's not easy as its old Marlin and they've replaced large sections

Comparing it to the main Marlin fork version that it's based on makes the changes pretty obvious. The date in the Version.h file is one of the better clues where to start from. So, you would first do a checkout of the main fork at that point in time, and then you would delete all the files (except the .git folder) and drop in the modified files from the tronxy3d fork. Viewing this in a tool like GitHub Desktop makes clear all the changes, and then those can be manually applied and adapted to the latest codebase.