Configuring Marlin for SKR 3 EZ

I started with the lates bugfix (Marlin-bugfix-2.1.x).
Do check the chip on the board - i picked the wrong one initially!

Repetier host has a manual control panel, much like the other tools that are around.
I have been connecting via usb cable, and connects via serial connection. There is some details on the following page.
https://docs.v1e.com/software/repetier-host/
You can send individual commands from the manual control panel as well.
You can upload a series of gcodes via file as well - this is how i have uploaded the crown…

In terms of pins i have it configured in the following way (the pins are shown on this image SKR 3 Pinout
Stepper Motors
X1 - pins XM 2B/2A/1A/1B
Y1 - pins YM 2B/2A/1A/1B
Z1 - pins ZAM 2B/2A/1A/1B (ZAB not used)
X2 - pins E0M 2B/2A/1A/1B
Y2 - pins E1M 2B/2A/1A/1B
I have the extruders number set to 0. Marlin buld automatically assigns the connections for the secondary X2 and Y2 stepper motors and end stops, so havent looked at all the specific pins.

End Stops
X1 - on X-Stop - pin PC1
X2 - on E0 det - pin PC2
Y1 - on Y-Stop - pin PC3
Y2 - on E1 det - pin PA0
Z Probe - on Z-Stop - pin PC15
note these all have GND and +5V and the internal circuits have filtering.
I have not used PWRDET (pin PC15 for anything at the moment).
The DET is short hand for detector - these boards are targeting the 3d printing market, and here you connect to a filiament detector to detect filament breaks, runout etc.

I have had my machine working, drawing crown with a pen. Have been able to home X & Y, and then attach a probe to get the height set.
I have a small spindle with a variable frequency drive (VFD) that I am setting up - had an issue with the configuration that i have been working through - so in time will be testing a few cuts, engraving etc. My summer holiday (here in Australia) is just about over, so will be working less on this in the coming weeks.

I achieved getting the ESP07s wifi module working today. I eventually found the following instructions SKR pro wifi to first flash the module with ESP3d. These instructions work also for the SKR3 with the BTT ESP07s module. I was not able to flash the module firmware via the method indicated in the user manual. The key was to get the correct parameters:

  • Baud rate 115200
  • SPI speed 40MHz
  • SPI mode set to DOUT
    erase the firmware first and then start the flash

I have the TFT display working - removed the cables connecting EXP1 & 2 and retained just the serial cable + power. Able to perform some control - although prefer the web base interface that i now with wifi access or repetier…