Klipper / Fluidd / Mainsail guide for Pi Zero W and SKR Mini E3 v1.2

Don't let the posts length frighten you, as the steps are - hopefully - easy to follow, and can always ask if something isn't clear or if something seems to be wrong in the post

Klipper and Marlin

After the following modifications, you will be able to freely switch back and forth between Klipper and Marlin by flashing the needed firmware to the board

Content:

1. Needed before starting
2. Sending commands to the Pi
3. Creating a bootable OS
4. Connect to the Pi via SSH (PuTTY)
5. Log into the Pi
6. Turn off Power Management
7. Swap GPIO ports
8. Disable serial console
9. Change password
10. Disable shell message
11. WiFi Link Quality
12. Update/Upgrade packages
13. Install GIT
14. Install KIAUH
15. Install Klipper, Moonraker and Fluidd/Mainsail with KIAUH
16. Creating the firmware
17. WinSCP to get klipper.bin (firmware.bin)
18. Flashing klipper firmware to the board
19. Wire up the Pi to the Board
20. Connect to Fluidd/Mainsail
21. Extras to printer.cfg
22. Default macros
23. Links
24. Changelog

Needed before starting

1. SKR Mini E3 v1.2 board
2. Pi Zero W
3. Two micro SD card
   1. (~2GB - or larger - for the Pi)
   2. (~1MB for flashing the klipper firmware to the board)
4. WiFi (SSID, password)
5. Wires with dupont connector or for soldering

Sending commands to the Pi

• Commands can be sent to the Pi via SSH (PuTTY)
• Copied commands can be pasted into an SSH session with right-click

Creating a bootable OS

1. Install Raspberry Pi Imager (link), PuTTY (link) and WinSCP (link)
2. Open Raspberry Pi Imager
   1. CHOOSE OS -> Raspberry Pi OS (other) -> Raspberry Pi OS Lite (32-bit)
   2. CHOOSE STORAGE -> WRITE
   3. Wait till it's done, then eject and reattach the SD card
      1. (It can take a long time)
      2. (Windows might say that there is a problem with one of the partition on the SD card, but you can safely ignore that, and don't format or "repair" it with windows)
3. Make a file called ssh - without any extension - at the root of the boot partition on the SD card
4. Make a file called wpa_supplicant.conf, also at the root of the boot partition on the SD card
5. Inside wpa_supplicant.conf add:

​

ctrl_interf

Hello,

Seems like I've got a bit of a strange issue, and I'm not sure whether this is to do with my network configuration, my Raspberry Pi Zero, Klipper or Mainsail, but it seems that I can only connect to the mainsail web interface on once device at a time.

If I'm able to access on my desktop PC, then if I attempt to access the same IP address on another device (Laptop or phone) I get a "connection timed out" error.

This also seems to switch between working devices at times. All of a sudden, my desktop can then have the same issue, but I check on my phone and I can access it, so it doesn't seem like an issue with specific devices.

As I say, I'm not sure where the issue potentially lies, but when I was using OctoPrint, this didn't seem to be a problem which makes me think it's something to do with Mainsail / the underlying operating system image/configuration that's used.

Has anyone else had the same issue and knows a fix?

Which one you prefer and why? Mainsail vs Fluidd vs DW2

I couldn't find a comparison between these.

Looking for Speed (no octoprint) + lot of features.

I created a setup to easily run (and upgrade) klipper, moonraker and mainsail (for simplicity i call it klipmoonsail) in docker on rpi4

feel free to use/test/pr/comment/bash: https://github.com/dmonizer/klipmoonsail

OK so my Sapphire pro (robin nano 1.2) is working flawlessly and doesn't need any improvement, but it's lockdown 2021 and I'm bored so I've decided to dismantle it and wire in a spare pi zero and ADXL345 accelerometer to solve the ghosting problems I don't have.

The question I can't find an answer to is whether the pi zero can handle the load of UART to the MCU, and SPI to ADXL345 at the same time.

Has anyone tried this? I wont be wiring up a camera to the Pi. I've got an esp32-cam from another unfinished project I can wire up separately.

I do realise I could spend the $30 on a pi 3b+ and be done with but a pi zero wired into the 5v mcu board seems like a much neater idea and I've already got the parts.

I’m interested in thoughts and opinions on boomless roller furling mainsail rigs like what’s on the Hobie Bravo, Adventure Island, or, on the homebuilt side, Drifter trimarans.

I guess my ultimate boat design would be a Goat Island Skiff hull with a kick up centerboard and rudder and a Drifter 14 or 16 sail rig.

I’m aware sail shape and performance suffer, but what other drawbacks would there be?

Im trying to install a nuclear engine in the space station (just to put this bad boy around Moho or Jool, I still dont know...) and I am using a RE-M3 "Mainsail" Liquid Fuel Engine with a Rockomax X200-32 Fuel Tank I even add 12 R-11 'Baguette' External Tank but did not work... I am running out of oxydizer and I really want to install the nuclear engine

PS: I have 12.000 delta-v in the nuclear stage... that is enough to orbit around Jool right?

EDIT: Here is what happened... My engine ran out of fuel in reccord speed and crossfeed was abled so consumed all my Nuclear stage... Now ive got 6 kerbals stranded in Kerbin orbit, waiting for getting terminated... F

Do either of these have timelapse capacity? I can't find any docs on it.

Installed Klipper with Octoprint on my Anet A8 and was impressed with a test cylinder print at a nominal 140 mm/s. But I have another printer sitting idle so I tried to do a multi octoprint and klipper setup. Couldn't get it to work. Seemed like Octoprint was confusing my printers. So I thought why not try Klipper with Mainsail. Holy Speedboat Batman! Wow!!! Same gcode and now it flies. Can't believe it was being throttled so much using Octoprint. Goes like a rocket and purrs like a kitten. Print quality was great. So now I want more.

Can anyone point me to a guide to setup two printers on a single Raspberry Pi using Klipper and Mainsail. My basic linux skills suggest it should be possible but if it's already been done then some advice would be great.

Happy New Year.

SOLVED (5 Jan 2021)

With help from user jitter on the klipper discord I have successfully setup my Anet A8 (cartesian) and Anycubic Kossel Linear Plus (delta) to run simultaneously from individual Chrome tabs using the fluidd UI and klipper firmware on a single Raspberry Pi.

If you want to try it yourself you can follow the steps noted here by user jitter https://gist.github.com/gretel/3c48280e29b03e596a8156f3215ebdb8

Alternatively you can try this tool which I was directed to by user Coffee but did not use https://github.com/abduct/Brainlet

Thanks everyone. Have fun.

EDIT 2 7 Jan 2021:

MUch easier way is to use Brainlet (linked above). Install Raspbian image, then run Brainlet. Open Fluidd UI in browser and add printers by specifying their ip:port (port 7125, 7126 etc). Done.

I moved my CR-10s onto Mainsail today form octoprint. I am using the same exact file that worked on octoprint with Mainsail, but as soon as a print starts I get this error:

!! Move out of range: 103.200 372.000 7.487 [698.763]

I found this thread which I think would help me, but I dont think I understand it.

Here is my mesh section, my offsets are X 52, Y -12

The bed size is 300x300, and I noticed, it does not seem to probe the front of Y enough, and probes very far back, almost,( but not) missing the bed.

[bed_mesh] 
speed: 100
horizontal_move_z: 8 
mesh_min: 100,83 
mesh_max: 275,285 
probe_count: 4,4 
split_delta_z: .025 
mesh_pps: 2,2

Hey Mainsailers: I hit a wall last night. Got a fresh Raspbian install on a 3B+ with Kiauh-managed Klipper, Moonraker and Mainsail installs. Actually had Mainsail up and running on the Pi locally, and used it successfully to work on my printer.cfg for about half an hour. Then I decided to try and log onto it via my LAN. Logged on at my other computer, loaded the page, then saw a never-ending "Connecting" bar with the comment "Moonraker can't connect to Klippy!" up top. Then my local session on my Pi, which had been working prior, disconnected and went to the same state. Sat there for about 20 minutes googling and it never changed.

I checked the Klipper service and it was running.

I power cycled everything together and the problem remained.

Then it was bedtime.

My Moonraker log is filled with 401 GET /websocket requests and exceptions, Unauthorized. I'm not a Linux or power user so this doesn't mean much to me, but it looks like it's wrong.

Thanks in advance for any assistance!

They just bought our building. Not much online about them.

Hi. I already have Klipper and octopi installed on my raspberry pi 4 B.

i was told that i should install Mainstail and Klipper because the interface is much better than octopi. so i went online and bough a 256GB micro sd card.

i downloaded the raspberry pi image installer. i ran it and chose the SD card and then chose

Raspberry pi Other/Raspberry OS Lite (32).

it sucessfully installed.

i found it kind of weird that when the sd card is reinstered to my computer that it is labeled as

USB(G) ExFAT

and has only 256MB of space.

So i went ahead and downloaded a memory card formating program and reformated it to 256GB

i then flashed the same OS onto the drive. And again it said it had a maximum size of 256MB.

it was also weird that it was not labled as BOOT

But it did have files on it.

so i opened it up. i put an empty text file named SSH on it in order to make sure SSH is enabled.

i then put the text file named wpa_supplicant.conf

with this text inside it. (i put US as the two letter region. and i also put in my correct SSID and PASSWORD. i double checked they were correct.

>ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev update_config=1 country=<Insert 2 letter ISO 3166-1 country code here>

>network={ ssid="<Name of your wireless LAN>" psk="<Password for your wireless LAN>" }

I then Saved the file.

i then put the SD card into the pi while the pi was turned off.

I turned it on and checked my router to see if anything was connected to it. and it was NOT.

I then redid EVERYTHING from the beggining with a fresh reformat.

again the SD card displayed 256MB. I again put in those SSH and WPA files.

This time when i turned on the pi, my router saw the name octopi connected to it it was on port 10.0.0.32

so i opened puTYY and tryed to connect. NOTHING

so i opened WinSCP and tried to connect. It TIMED OUT.

i put the card back in my desktop and now it says the card is

USB

ExFAT

and when i click on it it says "Please inset disk into drive G"

Im at my wits end. What am i doing wrong?

Any help is GREATLY appreciated.

Anyone using mainsail with cura? The mainsail documentation suggests that it emulates the Octoprint network upload, but if I try and use that I inevetaby get an API keying error…

I have a Vagabond 17. So when I've been hoisting the main, I've been attaching the halyard to the head of the sail, putting it in the track and hoisting it. Then securing the Tack, and lastly the Clew.

This works fine except yesterday while sailing is strong gusting winds, I was unable to get the sail tensioned to the boom correctly.

Should I be securing the Tack and Clew first and then hoisting the mainsail?

Also is there a better method for securing rigging than clevis pins and rings? It seems like I'm always fumbling with tiny rings and pins over the water. There's gotta be a better way.

One of the things I really liked about Octoprint was the fact that there was a Cura plugin I was able to use to send gcode files directly to my Octoprint server. Now that I've changed my printer from Marlin to Klipper, I was hoping to switch my remote print server from Octoprint to Mainsail, but it looks like the same function doesn't exist for Mainsail. Does anyone out there know if there's a similar solution?

I was out sailing the other day and I noticed that after we tacked the main telltales were stuck behind the mainsail and not flying back. Is there a rule for situations like this, where if it’s behind the sail let the mainsheet out/in? I know how to read the jib pretty well but the main just seems like more guesswork. I’m asking this because I’m racing this summer and want to be as knowledgeable as possible. I also know that the top telltale should be flying about half the time and just pop up from behind the sail, so I’m mainly talking about the three below the top one.