MKS SBASE V1.3 Dual Endstop Question [SOLVED]

dabrudda · February 15, 2019, 5:27pm

Another thing, the MKS_SBASE v1.3 allows the DRV8825 channels to be jumped together to basically clone an axis. Do not use a jumper wire to make dual X or Y axis’. All duplication of the axis’ are done in the firmware settings. No need for jumper wires.

dabrudda · February 17, 2019, 8:30am

I updated the configs to slow down X and Y homing feedrate. My CNC was lossing steps while trying to home

Change following lines to suit your CNC size and motor direction:

#define X_BED_SIZE 559
#define Y_BED_SIZE 432

#define INVERT_X2_VS_X_DIR false // Set ‘true’ if X motors should rotate in opposite directions

#define INVERT_Y2_VS_Y_DIR false // Set ‘true’ if Y motors should rotate in opposite directions

Copy the files to the following directories and overwrite the old files.

Marlin-bugfix-2.0.x\platformio.ini

Marlin-bugfix-2.0.x\Marlin\Configuration.h

Marlin-bugfix-2.0.x\Marlin\Configuration_adv.h

Marlin-bugfix-2.0.x\Marlin\src\pins\pins_MKS_SBASE.h

system · February 24, 2019, 8:49am

dabrudda:

Finished the modifications to the MKS_SBASE v1.3 board using Marlin 2.0 firmware for Dual X Motors, Dual Y Motors, and Dual Endstops.

The firmware.bin is included for the MKS_SBASE v1.3. Copy to the SD card and delete the FIRMWARE.CUR file on the SD card. Insert the SD card and power up the board.

If you want to compile your own firmware in Atom using PlatformIO: (Don’t recommend Arduino IDE 1.9 beta because a trojan/virus may have been found in the zip file in the serial-discovery.exe)

Download the MPCNC Marlin 2.0 firmware and extract the zip file.

Extract the attached zip file and copy the extracted files to the following directories

Marlin-bugfix-2.0.x\platformio.ini

Marlin-bugfix-2.0.x\Marlin\Configuration.h

Marlin-bugfix-2.0.x\Marlin\Configuration_adv.h

Marlin-bugfix-2.0.x\Marlin\src\pins\pins_MKS_SBASE.h

What about the config.txt that is on the sd card?

I want to try this out on my MKS SBASE but am not so good with how to load firmware/configure, etc.

system · February 24, 2019, 9:07am

I took the zip and pulled the bin and loaded to the SD card and it appears the firmware is loaded.

I am just unclear of what other settings I need to change, etc. E.g. Stepper voltage, direction

system · February 24, 2019, 9:56am

I downloaded Atom/PlatformIO - copied the files like you said.

I am getting this error after hitting the checkmark icon.

dabrudda · February 24, 2019, 3:52pm

I’ve updated my config because the stepper drivers where getting hot just sitting there so I decreased the milliamps from 1200 to 1100 and the drivers seem to be ok. Attached are the new files.

Install Atom Text Editor (You do not need to install Clang)
Install platformio-IDE (See this video on YouTube- https://www.youtube.com/watch?v=gMPdsBumWCQ )
Download the MPCNC Marlin-bugfix-2.0 from the V1Engineering Marlin Repository and extract the zip. Don’t use any other firmware than the MPCNC Marlin-bugfix-2.0.
Download the MKS_SBASE v1.3 Dual Endstops zip file attached to this forum post and extract the zip
Copy platformio.ini to the ~\Marlin-bugfix-2.0.x\ directory (Ensure the old files are overwritten)
Copy Configuration.h and Configuration_adv.h to the ~\Marlin-bugfix-2.0.x\Marlin directory (Ensure the old files are overwritten)
Copy pins_MKS_SBASE.h to the Marlin-bugfix-2.0.x\Marlin\src\pins directory (Ensure the old files are overwritten)
Open ATOM Text Editor
Click FILE \ OPEN FOLDER (at the top menu) and select the ~\Marlin-bugfix-2.0.x folder (Where you extracted the zip in step 3)
Click the Check Mark on the left menu to compile the FIRMWARE.BIN
Plug an SD card into your computer and copy the firmware.bin to the SD card
Delete the FIRMWARE.CUR file on the SD card
Plug the SD card into the MKS Sbase v1.3 board and power it on with either a USB cable or a 12v power supply. The FIRMWARE.BIN will be flashed and renamed to FIRMWARE.CUR
If you endstops do not trigger then try changing the following settings in Configuration.h to false

// Mechanical endstop with COM to ground and NC to Signal uses “false” here (most common setup).
#define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Z_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define X_MAX_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Y_MAX_ENDSTOP_INVERTING true// set to true to invert the logic of the endstop.
#define Z_MAX_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
#define Z_MIN_PROBE_ENDSTOP_INVERTING true // set to true to invert the logic of the probe.

Or just copy the included compiled FIRMWARE.BIN to your SD card and repeat step 11 thru 13.

MKS_SBASE_v1.3_Dual_Endstops.zip (122 KB)

dabrudda · February 24, 2019, 3:55pm

This firmware does not use a config file like Smoothieware

dabrudda · February 24, 2019, 3:57pm

I’ve updated my firmware.bin with lower milliamps on the drivers and motors (from 1200 mA to 1100 mA) to prevent overheating. Everything should be set if you used my files or loaded the pre-compiled firmware.bin

system · February 24, 2019, 4:41pm

I couldn’t get it to work.

system · February 24, 2019, 4:45pm

May I ask = why the bugfix 2.0 vs. the other MPCNC options… maybe this is what I did wrong.

I used the ramps dual end stop zip and then applied your files.

dabrudda · February 25, 2019, 3:25pm

The Marlin bugfix 2.0 supports 32-bit MCU’s. Marlin 1.1.9 supports 8-bit MCU’s

dabrudda · February 25, 2019, 3:26pm

Will not work. That is the reason you are not getting it to work. Ramps firmware is an 8-bit firmware which will not run on the MKS SBASE v1.3 board, which is 32-bit MCU.

system · February 25, 2019, 4:17pm

I used the Bugfix 2.0 and have it working now but the end stops don’t seem to be triggering.

dabrudda · February 25, 2019, 4:48pm

You may need to reverse the state of the endstops in the Configuration.h to false, re-compile, and re-flash.

I have 3 wire endstops with LEDs.

// Mechanical endstop with COM to ground and NC to Signal uses “false” here (most common setup).
#define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Z_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define X_MAX_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Y_MAX_ENDSTOP_INVERTING true// set to true to invert the logic of the endstop.
#define Z_MAX_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
#define Z_MIN_PROBE_ENDSTOP_INVERTING true // set to true to invert the logic of the probe.

system · February 25, 2019, 5:16pm

Ok. I only have the two wire — Signal and Ground.

system · February 25, 2019, 5:33pm

That did the trick. homes X and Y now without an issue.

Thx.

remon_v · July 2, 2020, 5:07pm

Hey, I’m trying to confgure my MKS Sbase board with dual X and Y stepper motors and dual endstops.
I downloaded the MKS_SBASE_v1.3_DUAL_Endstops.zip and copied the firmware.bin file to the SD card.
But the E0 and E1 are not working. Anyone can help me to fix this?

jeffeb3 · July 2, 2020, 6:47pm

A lot has changed in the last year. I would start with V1CNC_Rambo_Dual and then edit it for your board. It should just be one line to switch boards and then change the target in the platformio file.

remon_v · July 2, 2020, 6:49pm

Jeffe… I tried that, but it didn’t work. I don’t know why

In the flatformio.ini I set the ‘default_envs’ to LPC1768

jeffeb3 · July 2, 2020, 6:58pm

I responded to your other thread. FWIW, saying, “It didn’t work” gives me no way to help.