newbee to platformio, need initial startup to configure for board only in imports file.

#define MOTHERBOARD BOARD_MKS_ROBIN_NANO_1_3_F4

#define MOTHERBOARD BOARD_MKS_ROBIN_NANO_V1_3_F4

#define MOTHERBOARD BOARD_MKS_ROBIN_NANO_V3_1

#define Z2_DRIVER_TYPE TERN(SAPPHIRE_PLUS_TMC_UART,TMC2209,TMC2209_STANDALONE

#if ENABLED(SAPPHIRE_PLUS_TMC_UART)
#define X_SERIAL_TX_PIN                   PA9   // Wifi TX
#define X_SERIAL_RX_PIN                   PA9
#define Y_SERIAL_TX_PIN                   PA10  // Wifi RX
#define Y_SERIAL_RX_PIN                   PA10
#define Z_SERIAL_TX_PIN                   PC13  // WIFI IO0
#define Z_SERIAL_RX_PIN                   PC13
#define E0_SERIAL_TX_PIN                  PE5   // MAX31855 CS
#define E0_SERIAL_RX_PIN                  PE5
#define E1_SERIAL_TX_PIN                  PC7   // WIFI IO1
#define E1_SERIAL_RX_PIN                  PC7
#define TMC_BAUD_RATE                     19200 // Reduced to improve software serial reliability
#endif

• Made the changes mentioned by DUST.
• Stripped out all the SAPPHIRE_PLUS_xxx conditionals.
• Set all steppers to TMC2209
• Configured the Z2 motor to use the E1 stepper driver slot
• Configured just a single Z_MIN endstop
• Disabled MKS_ROBIN_TFT35
• Disabled FILAMENT_RUNOUT_SENSOR
• Disabled ADVANCED_PAUSE_FEATURE
• Disabled Bed Leveling

Quote
[email protected]
You may consider changing to the MKS TS35 display. It works with the MKS Robin Nano 3.1.

Unfortunately it looks like you'll need to order it from China. I didn't find it on Amazon except as part of a bundle.

Chances are you'll need to print a new LCD enclosure if you go with the MKS TS35.

I thought of that but would have to spend another $400 for another printer to do it.

---

Any chance of returning the MKS Robin Nano 3.1 you have now and getting the bundle?

#define Z_DRIVER_TYPE  TERN(SAPPHIRE_PLUS_TMC_UART,TMC2209.TMC2209_STANDALONE)

Quote
Dust
>Some clarification....


>Two tress provides this directory
>[www.mediafire.com]

>The Config file provided in this firmware directory robin_nano35.cfg.txt is not standard for anything .

>It is not a platformio config file
>its is not a Marlin config file. (but parts of it clearly are based on marlin Config files)

>What two trees has done is to heavily customize Marlin, This allows for settings that are normally compile time options to be changed with their custom config file.
>Unfortunately they have not provided this customized Marlin, in binaries or source form as far as I can find.

They have sent me, by way of wetransfer, a couple .rar files that may be what we are looking for, but no docs as to how to actually use it.

>So even if you managed to get a robin nano v1.2 board, there is no way to restore it to factory stock.
>(unless you manage to get what you need form two trees, somehow)

There supposedly is a new V1.2 board for this printer coming but I've not yet rx'd an "its been shipped" notice from amazon who is the dealer path. The agreement, effectively a warranty claim, was agreed to just 3 days ago, and the junk moves by donkeys on the canal bank and rope from past performance. It took 5 weeks from order to receipt originally. IMO its a good printer for the sheckels asked, no bltouch or anything like that but leveling is dead stable once set. 2 major gotcha's, its a bowden tube, and despite the claims the teflon tube goes all the way to the nozzle, I've installed a heat break that fixes that, so PETG should Just Work once its restored to operation. I may see if I can print a mount for the tiny extruder by ldo on top of the hotend. but that's a future project.

Right now its to make, albeit slowly, the stuff I need for the other 2 even bigger printers. designing most of what I need in openscad. Restored, the ender5+ can make the housing halves 6 up, hopefully in 3 days. The tronxy, working, can do half nuts a dozen up, supposedly in that 3 days. Either will use up around 2kg of filament. I change that on the fly when they run out.

This printer isn't big enough to do me any great speeds, but its a much better printer for $400 than a Prusa mk3s+ at $1000 which has been such a black hole for maintenance costs I've given up on it. I've also an ender5+ I'm rebuilding again, and a tronxy-400-plus that has never printed anything, the marlin it comes with it totally fubar. Any attempt to print is done 5mm above the glass plate. m851 is ignored. All of them will have stepper/servo's eventually. Those don't lose home w/o stopping LinuxCNC so fast, a millisecond perhaps, no mark on the workpiece. I have them for x and z on an 80 yo sheldon lathe, and for Z and B on a 6040 mill. That B is shop made, a 3NM stepper/servo driving a 5/1 worm, printed chuck to hold the stick of hard maple I'm turning into a vise screw. These printers are then to make the nuts and the rest of a big vise for woodworking benches. Screw is 20" long, 2" dia, 4mm tall buttress thread, carved with gcode I wrote. But no tool changer on that mill, so I'm doing it all with a 1/16" SC round nosed bit.
12mm pitch thread, 2 start so looks like a 6mm moving two threads per turn. Because that bit is so fragile, its about 2 days to make a screw, but the first 36 hours are spent making a 2" square stick round. With a tool changer, I could do the roughing cuts in half an hour. But spindles that fast, 24k rpm, with a tool changer are around 4 grand, I can still make screws at 6x what the printers can do. I've got to get some speed, and its looking like klipper3d may have the better answer. Just gotta figure out how to build, calibrate, and use it. I'll be happy if I can get them to run at 300mm instead of 60. I plan on using the new creality spider hot end, I've used 2 of them so far w/o any problems with the ldo extruder on top of them on printed carriages. But I have to find some 4 wire fans, the last burnup on the ender5+ was because the hot end fan sucked up debris from the bed, jammed and stopped the fan, and marlin just kept on trucking until the carriage melted down. Bad dog, no biscuit. I've redesigned the air flow to prevent that I hope.

>The configs provided by marlin are what you need to run stock Marlin on the stock hardware. (I have an even newer version of this link from TwoTrees, but its too old for these cards.)

>These can be customized for new hardware etc, withing limits of the new hardware.
And the actual docs on the new boards is on the missing list.



The robin nano v3.1 boards do not support the original LCD that was on the robin nano v1.2 boards
This is why you get the error "MKS Robin Nano V3 doesn't support FSMC-based TFT displays." when you have MKS_ROBIN_TFT35 enabled.
This LCD is simply not compatible with this motherboard.

>You cannot build marlin from import branch configs. That is not what they are there for (import branch is for adding and editing config files, actual config files are generated using scripts from these files)
How about some docs on how to do that?


>You must change the branch to the version of Marlin you are using and use those configs

for eg if you using Marlin release 2.1.2 then you download https://github.com/MarlinFirmware/Configurations/archive/refs/heads/release-2.1.2.zip
If your using Marlin bugfix 2.1.x then you download https://github.com/MarlinFirmware/Configurations/archive/refs/heads/bugfix-2.1.x.zip

If the filename says import, you have downloaded the wrong thing

• Enable SAPPHIRE_PLUS_TMC_UART
• Delete lines 1126-1138. These are specific to the default motherboard. The corresponding MKS_ROBIN_NANO_V3_1 settings are handled in the pins_MKS_ROBIN_NANO_V3_common.h file.