Voron 2.4 Octopus v1.1 .cfg

[TitusADuxass]

1 hour ago, SamppaD said:

Hi. This weekend went on another rabbit hole investigation so i didnt have the time to inspect defective boards tracks. After some long hours print still having issues with moonraker. I posted a new topic on forum   Moonraker connection issues. Go check it out and give some ideas what can be done to solve this..

So I'm not the only one chasing my arse.

I tried configuring the Octopus every which way I could, it would not work.

So, I put the original M8P v2/CB2 back in, that too didn't work.

It turned out that the Z1 stepper motor had gone open between one pair of the coils. This happened after I started playing around with the Octopus, coincedence?

I suspected the Octopus board since I installed it, I'm still convinced that someone else used it before (the jumpers were all set to SPI mode).

Anyway the v2.4 if back up and running, I get the odd comms issue with either the Beacon or the O2S board that requires first a restart and then a firmware restart.

[SamppaD]

1 hour ago, TitusADuxass said:

So I'm not the only one chasing my arse.

I tried configuring the Octopus every which way I could, it would not work.

So, I put the original M8P v2/CB2 back in, that too didn't work.

It turned out that the Z1 stepper motor had gone open between one pair of the coils. This happened after I started playing around with the Octopus, coincedence?

I suspected the Octopus board since I installed it, I'm still convinced that someone else used it before (the jumpers were all set to SPI mode).

Anyway the v2.4 if back up and running, I get the odd comms issue with either the Beacon or the O2S board that requires first a restart and then a firmware restart.

 

Hi. About that, my first 429 octopus came in original packaging with no config jumpers installed.
However my new 723 octopus with arm 550mhz controller that i got last week came in original packaging but configured to uart 24V tmc drivers configuration,
all fans port where set to 24V and probe port set to 5V.It had also a 5V jumper for usb connection,controller flashing installed? 
TMC drivers came in plastic BTT factory sealed packaging. So i was thinking what the hell,is this used/tested or what the deal? 

This was purchased directly from BTT official store so i contacted them to see what is the reply i get from them...
BTT support reply that its a brand new product and jumpers are set by the factory...they did offer a full refund if im not accepting the board or it has some issues.
So I'm thinking that BTT has some manufacturing issues with the boards and they are testing them before shipping. After testing them they don't remove  jumpers from the board.
I inspected my boards and couldn't tell that it was used,all terminals,screws and screw holes and ports are brand new. No marks of use whatsoever on pcb. 
So i don't know for sure but something just feels off,considering that my original Voron board had DOA probe port when was delivered to me and finally that board
died so suddenly after 200 hours of use during printing shorting PB6 port and killing the controller partially. This kind of issues raises some questions about BTT quality and quality control.

 

[TitusADuxass]

1 hour ago, SamppaD said:

Hi. About that, my first 429 octopus came in original packaging with no config jumpers installed.
However my new 723 octopus with arm 550mhz controller that i got last week came in original packaging but configured to uart 24V tmc drivers configuration,
all fans port where set to 24V and probe port set to 5V.It had also a 5V jumper for usb connection,controller flashing installed? 
TMC drivers came in plastic BTT factory sealed packaging. So i was thinking what the hell,is this used/tested or what the deal? 

This was purchased directly from BTT official store so i contacted them to see what is the reply i get from them...
BTT support reply that its a brand new product and jumpers are set by the factory...they did offer a full refund if im not accepting the board or it has some issues.
So I'm thinking that BTT has some manufacturing issues with the boards and they are testing them before shipping. After testing them they don't remove  jumpers from the board.
I inspected my boards and couldn't tell that it was used,all terminals,screws and screw holes and ports are brand new. No marks of use whatsoever on pcb. 
So i don't know for sure but something just feels off,considering that my original Voron board had DOA probe port when was delivered to me and finally that board
died so suddenly after 200 hours of use during printing shorting PB6 port and killing the controller partially. This kind of issues raises some questions about BTT quality and quality control.

I also ordered mine direct from the BTT website. It was delivered in 3 days from Czech Republic.  BTT's support have been trying to help but they keep insisting that I have the config wrong. They can't say where it's wrong, but it's wrong.

[mvdveer]

11 hours ago, TitusADuxass said:

(the jumpers were all set to SPI mode).

This is how they come shipped. ( I have 11 machines on Octopus boards and they all shipped with jumpers in SPI mode)All jumpers are on the board. Will need to set jumpers for whichever mode you need to use.
 

Also need to remove jumpers from  diagnostic pins and the USB power. 
 

see relevant page in the Voron 2.4 build manual. I am away so can’t quote the exact page number

[mvdveer]

Page 203:

[TitusADuxass]

6 hours ago, mvdveer said:

Page 203:

The only jumpers that I have installed are:

The uart ones on the 2nd from the left (top 2 rows) under the TMCs, the 120r jumper, the 2 for sensorless (first 2 in section 2) and the Probe Voltage jumper.

I'm a bit reluctant to reinstall the board now that I've replaced the Z1 stepper motor. I just no confidence in the board.

[SamppaD]

13 hours ago, mvdveer said:

Page 203:

Hi,that's correct per manual. All my controller boards are purchased from BTT store sellers,however first octopus 429 came to me without any jumper installed on the board,all jumpers were packed in the small packaging separately from the board itself,second octopus 429 arrived all possible jumpers installed on the board,few spares jumpers packed separately again,and now last week got octopus 723 that came jumpers set as picture 1,3,4,and 5, jumpers from picture 2 are missing from the board. BTT responded that its a brand new board but offered full refund if something is not working. Based on observation of the board screw,screw holes,terminals and pcb I think its a new board but cant really be 100% sure about that,i just have to trust BTT statement. I think that they are maybe testing boards or someone is just slapping jumpers on the boards.  I didn't have the time to test the board as i have been fighting with moonraker issues. On my surprise i noticed that 723 board doesn't have a rj45 port,have to check if the pcb layout is the same as 429..

Edited November 3, 2025 by SamppaD

[TitusADuxass]

17 hours ago, SamppaD said:

. On my surprise i noticed that 723 board doesn't have a rj45 port,have to check if the pcb layout is the same as 429..

That surprised me as well, and all the config guides that I've found show a board with an RJ45 connector.

[Penatr8tor]

Just for comparison... I happen to have a new unused and bought within the last year Octopus 1.1 board and it has an RJ45 connector.

Here's what I saw when I opened the bag...

[SamppaD]

Hi. Octopus 446,429 have rj45 connector on board but at least newest version of 723 doesn't have it. When ordered picture was with a rj45 onboard so  it must be a old revision picture that they are using. This board have  port labeled CAN_N instead of rj45.

[Penatr8tor]

On 11/4/2025 at 8:49 AM, SamppaD said:

Octopus 446,429 have rj45 connector on board but at least newest version of 723 doesn't have it.

They probably got a lot of complaints about the connector and replaced it with a 2 pin JST that's easier for someone to crimp.

[SamppaD]

On 11/3/2025 at 9:50 AM, TitusADuxass said:

The only jumpers that I have installed are:

The uart ones on the 2nd from the left (top 2 rows) under the TMCs, the 120r jumper, the 2 for sensorless (first 2 in section 2) and the Probe Voltage jumper.

I'm a bit reluctant to reinstall the board now that I've replaced the Z1 stepper motor. I just no confidence in the board.

What happen to Z1 motor?  Stepper motors are durable ,if something fails its the driver.. How did you notice the issue? Did klipper report error on startup or Z1 didnt move?

[TitusADuxass]

13 hours ago, SamppaD said:

What happen to Z1 motor?  Stepper motors are durable ,if something fails its the driver.. How did you notice the issue? Did klipper report error on startup or Z1 didnt move?

One of the coils went open circuit. 

I noticed it when I tried to home all axes, the toolhead crabbed across the bed.

Normally the driver goes first.

BTT want me to prove that the board has a failure.  So I'm going to put it on the test bench.

[SamppaD]

9 hours ago, TitusADuxass said:

One of the coils went open circuit. 

I noticed it when I tried to home all axes, the toolhead crabbed across the bed.

Normally the driver goes first.

BTT want me to prove that the board has a failure.  So I'm going to put it on the test bench.

I have similar issue,remembering after reading your reply. When homing cold printer sometimes hear strange vibration from one of the A B motors almost like grinding and noticed that some times when it was supposed to be making a fast move when homing  printer  executed the move much slower then expected..searched for what could be the reason..done all the normal stuff,checked config, electronics,gantry,belts tension,all bearings,tmc logs and so on,never found the fault at that moment. Strange thing is what i consider fault  it always disappear after trying that homing diagonal move again and was gone for a long time,never noticed that sound when printer was warm. From time to time checked  tmc drivers for any error logs, but no error flags for TMC drivers,stepper motors,short or overheating or skipped steps. Printer prints good quality. Printed now over 200 hours had that mainboard controller failure. After fixing that issue was looking at the printer behavior and the way it sounds and executes all commands and finally that issue presented itself during a homing move,issue lasted for few homing procedures and i had my panels removed noticing that my B motor (left corner of the gantry) actually vibrates during move sometimes. What i think is happening is that LDO motor is actually failing . Klipper doesn't find any issues with fast or slow moves,no errors what so ever TMC logs on issues..really strange thing.. Maybe this defective BTT board  damaged that motor before failing how knows..Now I just cant trust this machine right now so I decided to do a full rebuild,swap all motors,put a 723 octopus board with new stepper drivers and swap a faster pi. Just to get peace of mind. As i car mechanics I hear to much of mechanical issues in engines and transmissions  and hearing something that i didn't hear before from stepper motor concerning me. I was talking to Jason from LDO and he is shipping me a new motor kit.

Edited November 6, 2025 by SamppaD

[SamppaD]

Hi to everyone. 

Does anyone know what is different regarding pinout between 0ctopus pro 1.01 429 32F429ZGT6 and Octopus pro 1.1 723,stm32H723ZET6 variant? Iwas searching for a proper documentation about this 723 board and all i can find is based on older version of this 723 board that had RJ11 can port.This new board is using JST connector for CAN and has dedicated probe port that is not shared with other components. I suspect that pinout is not the same as 429. I contacted BTT but still waiting for reply.

Edited November 8, 2025 by SamppaD

[mvdveer]

14 hours ago, SamppaD said:

Does anyone know what is different regarding pinout between 0ctopus pro 1.01 429 32F429ZGT6 and Octopus pro 1.1 723,stm32H723ZET6 variant?

This what is what I found (BTT Github):

Hope it helps

[SamppaD]

11 hours ago, mvdveer said:

This what is what I found (BTT Github):

Hope it helps

Hi. Yes this helps,big thanks. So i only need to update printer.cfg with above pinout changes .. In meantime i tested the motors,harness and coils and all motors are in spec. What i known is that  my stepper motors are HT versions however current was set to 0.9A in printer.cfg. 0.9A for a AB HT motor is to low. Based on motor specs current should be higher. Some time ago i had to use a printer.cfg backup file and most likely that file was set for stock configuration. That might explain cold start grinding that happens from time to time. Im still waiting for LDO motor kit and when i get some free time i will remove motors to inspect bearings. 

[Penatr8tor]

Not 100% sure but I have a feeling these are the 2 pinouts you need.

As you can see below, only 2 of the RJ11 pins are used and they are labeled PD0 & PD1.

How much do you want to bet that the 2 pins on the new JST connector are the same?

Might be worth a try.

Large full image below.

Can be downloaded from the online Voron Manual

[SamppaD]

1 hour ago, Penatr8tor said:

Not 100% sure but I have a feeling these are the 2 pinouts you need.

As you can see below, only 2 of the RJ11 pins are used and they are labeled PD0 & PD1.

How much do you want to bet that the 2 pins on the new JST connector are the same?

Might be worth a try.

Large full image below.

Can be downloaded from the online Voron Manual

Hi. Thanks this helps also. 

[SamppaD]

Question about octopus pro 1.1 723 variant stepper motor 3/4  in voron config. BTT states changes made on 723 board to motor 4 enable pin from PA0 to PA2 . But googling this issue it seams that there is more changes made for motor 4 regarding pins,all pins step.dir,enable,uart are changed on 723 board when all other motors are stock config??

For driver 3 Z1  enable pin is set from !PA0 on octopus 429 to !PA0 for 723

Motor driver 4 Z2 stepper pin was PF9 changed to PC13. Dir_pin was PF10 and it was changed to PF0. For enable pin change was made from !PG2 to !PF1. Uart pin was changed from PF2 to PE4

Can someone confirm is this information actually correct. I cant get clear answer from BTT support.