Replacing Duet 2 WiFi with Fysetc Spider v2.2

Download and extract the latest version of Mainsail from their Github

Open the Raspberry Pi Imager

Select Operating System > Use custom > Select the Mainsail OS you downloaded.

Select Storage > Select your SD.

Bring up the Advanced Settings menu by pressing the settings cog.

Here you can setup your WiFi, locale, enable SSH and numerous other options.

Write > Yes to confirm

After imaging is complete the SD is automatically ejected. Insert it into the RPI and power it on.

In the box you should've received

Fysetc Spider v2.2

USB-C cable

USART cables

Ziploc of jumpers and connector for 24/48v stepper socket.

There's 2 options to upload the bootloader. The preferred method is to upload by micro SD. However first we need to upload the bootloader with the stm32cubeprogrammer found on FYSETC Github.

Download and run the program.

Due to historical reasons, FYSETC provides two versions of bootloaders that can be downloaded here:

Older motherboards shipped prior to June 23 2021 use a 64k bootloader: Bootloader_FYSETC_SPIDER_10000.hex

Current motherboards shipped after June 23 2021 use a 32k bootloader: Bootloader_FYSETC_SPIDER.hex

Go to the FYSETC github. You need to download the bootloader. Right click on the file and select "save link as..." and save the .hex file

Open the .hex file in Notepad++ and you see it downloads the html data instead of the .hex file.

On the Github page click on Bootloader_FYSETC_SPIDER.hex

Select "Raw". Copy the data in the web browser and paste it into the .hex file in Notepad++ and save it.

Download and run the programmer app.

Place a jumper on BT0 and 3.3v

Make sure the 5v jumper is on the DC5V pin

Plug the USB-C cable into your PC and connect 12-24v to the board.

Select the refresh button

When the USB port shows next to the Port drop down select connect.

Make sure you're on the Erasing & Programming tab

Select Browse and select the "Bootloader_FYSETC_SPIDER.hex" file from earlier.

Click Start Programming.

It should only take a few seconds to program the board.

Disconnect the power and USB-C cable. Remove the jumper on BT0 and 3.3v

With the Raspberry Pi connected to the Fysetc Spider via USB and the Spider with 24v, power on the RPI.

You can find the IP address of the Pi by looking at the connected client list in your router or by opening cmd.exe on your PC and running

You can also find the IP by using the Adafruit Pi Finder App

If you changed your hostname in the Advanced Settings when you imaged the USB/SD card you need to try to ping that hostname. ping YOURHOSTNAME -4

In a webpage enter http://YOURHOSTNAME or your printers IP address

Navigate to the Machine tab on the left.

Select Upgrade to update the RPI image and Update to install updates for Klipper, Mainsail and Moonraker. Once the updates are complete reboot the RPI

After updating mainsail and all core components, SSH into the RPI.

Place a jumper on BT0 and 3.3v and press the reset button on the board to put it in DFUtil mode

Send the following to verify the Pi can communicate with the Spider and notate the ID for DFU Mode

lsusb

Next you need to build the firmware binary file. Run the following

cd ~/klipper

make clean

make menuconfig

In the menu structure, select the following:

Select “Enable extra low-level configuration options”.

Set the micro-controller architecture is set to STMicroelectronics STM32.

Set the Processor model to STM32F446.

Because we uploaded the hex file in a previous step set the bootloader offset to no bootloader

Set the Clock Reference to 12 MHz crystal.

Set the Communication interface to USB (on PA11/PA12).

Press the escape key on your keyboard and enter Y to save the config.

Run the following:

make

make flash FLASH_DEVICE=####:####

Using the ID you notated earlier in place of ####:####

Power off the Spider. Remove the jumper and press the reset button on the board.

Run the following

ls /dev/serial/by-id/* or lsusb

SSH back into the RPI

Enter the following commands

cd ~/klipper/

sudo cp "./scripts/klipper-mcu-start.sh" /etc/init.d/klipper_mcu

sudo update-rc.d klipper_mcu defaults

make clean

make menuconfig

Micro-Controller Architecture > Linux Process. Press esc than Y

Run the following:

sudo service klipper stop

make

make flash

sudo service klipper start

Verify klipper_host_mcu is in the tmp directory with ls /tmp/*

Add the pi to the TTY group

sudo usermod -a -G tty pi

In your web browser you'll see Klippy-State error because printer.cfg isn't loaded.

Navigate to Machine tab

Upload printer.cfg, macros.cfg and moonraker.conf from my github.

serial: /dev/serial/by-id/usb-Klipper********************

Power off the Pi and the board. Next insert your stepper drivers and plug in all the wiring. Make sure you have the connector for the stepper power connected. If you don't have the jumper wire or the 48v connector depending on your setup when 24v is applied to the board you can blow your stepper drivers.

Remove the jumper on BT0 and 3.3v

Power on your Pi and Spider. If you're using 48v for your stepper drivers make sure the 48v PSU powers on with your 24v PSU

You should see the 3 voltage LEDs lit

And FAN0 is probably lit

For whatever reason FAN0 wouldn't turn off until I heated the nozzle to 50c and shut it off. Once the hotend cooled below 40c the fan shutoff

Download the file and extract.

Under "machine" menu, click on the Gear icon and select the checkbox for "show hidden files".

Select "Create Directory".

In the name field enter “.theme” and select CREATE.

it has to be named as seen in the screenshot.

Select the newly created ".theme" folder. Upload all the files from the zip archive into .theme folder.

hit Ctrl+F5 and Enjoy.