Voron 2.4 Octopus v1.1 .cfg

[TitusADuxass]

I have found several .cfg on BTT's Github - both of them have not been updated for 2 years.

The one that is probably the correct one is BTT_OctoPus_Pro_V1.1_Voron2_Config.cfg - can someone please confirm that this is correct, or even better, can someone share their .cfg?

Thanks

Paul

[Sergey]

No, it is not correct any way because it is NOT your config file.
You should create you own file with setup depends of your hardware

[Delluks1234]

What hardware do you have, can someone help you if they have the same hardware or at least something similar?

[SamppaD]

Hi. First we need to know your hardware,Voron provided generic configuration file that need to be edited to fit your build,thats the best practice. Here is my printer.cfg. Notice this has been configured to work with SB,LDO HT stepper motors and TMC BTT 1.3 2209 drivers,Galileo2 extruder,BTT octopus pro 429,BTT smart sensor,Klicky probe at 5V. If you want to try then check that you configure provided cfg to fit your build. Things to check,MCU Id,tmc drivers,rotation,current. Extruder e steps,temp sensors. This build is using 220V kenovo heated bed,SSR connected to HE1. All fans are running at 24V. Make sure that endstops are configured correctly and trigger as intended. This is provided as is so take care to check configuration and adjust as needed.

config-20251026-165936.zip

Edited October 26, 2025 by SamppaD

[TitusADuxass]

2 hours ago, Sergey said:

No, it is not correct any way because it is NOT your config file.
You should create you own file with setup depends of your hardware

Agreed, but it gives me a known starting point.

[TitusADuxass]

2 hours ago, Delluks1234 said:

What hardware do you have, can someone help you if they have the same hardware or at least something similar?

I've got a Beacon and a Orbitool O2S toolhead board. TMC2209 drivers.

[Penatr8tor]

21 hours ago, TitusADuxass said:

I've got a Beacon and a Orbitool O2S toolhead board. TMC2209 drivers.

Here's my printer.cfg and associated .cfg's

config-20251027-084259.zip

I have a Leviathan but... You really only need to change the device pins on the motors.

The Orbitool pin entries will also need to be checked, but the scaffolding for what you want to build on is all there. 

[TitusADuxass]

16 hours ago, Penatr8tor said:

Here's my printer.cfg and associated .cfg's

config-20251027-084259.zip 19.55 kB · 1 download

I have a Leviathan but... You really only need to change the device pins on the motors.

The Orbitool pin entries will also need to be checked, but the scaffolding for what you want to build on is all there. 

Thanks mate, that is just what I was looking for.

[PFarm]

On 10/26/2025 at 12:33 PM, TitusADuxass said:

I've got a Beacon and a Orbitool O2S toolhead board. TMC2209 drivers.

What is needed to mount an Orbiter extruder and Beacon on a V2.4 or Trident?

[Penatr8tor]

@PFarm I have a complete toolhead (Stealthburner style) on this thread.

It's designed to use all of the orbiter products, extruder+toolboard+filament sensor) and utilizes a CNC Fysetc Beacon mount.

p.s. If you get the Orbitool o2s toolboard you can plug the Beacon into it and you won't need to run an extra cable other than the CAN cable.

 

[TitusADuxass]

So the new Octopus board is not playing nicely.

It gives me the following error - 

 

Unable to read tmc uart 'stepper_z' register IFCNTUnable to read tmc uart 'stepper_gz' register IFCNT

I've checked that the jumpers are in place for the motor power, they are all on the left 2 pins.

When I got the board, all the jumpers where installed for a SPI mode setup. In my experience the boards normally don't have any of the jumpers installed.

I suspect that this board is "used" and has been returned. Discussion are going on with support at BTT/BIQU, but as always it takes time. You answer one set of questions and then they come back with more questions.

Just for SnGs, I put the M8P/CB2 board back in, everything worked as expected - which proves that the TMC2290s are working.

 

[PFarm]

@TitusADuxass Did you set the voltage jumpers for the steppers?

[TitusADuxass]

5 minutes ago, PFarm said:

@TitusADuxass Did you set the voltage jumpers for the steppers?

The way I read that is that it doesn't matter whether it's left or right, both options will supply 24v which is connected to the motor power terminal on the board.

The board came with the jumpers connected to the right, I get the same error message.

 

[TitusADuxass]

Problem solved, one motor connector crimp had worked itself out of the connector.

Next question: Do I need to fan cool the board?

[PFarm]

@TitusADuxass I have an Octopus in my Trident and have no cooling for the board other than the skirt fans.

[Penatr8tor]

1 hour ago, TitusADuxass said:

Problem solved, one motor connector crimp had worked itself out of the connector.

Next question: Do I need to fan cool the board?

Nope, but it never hurts to blow a little air on it.

[Penatr8tor]

1 hour ago, TitusADuxass said:

Problem solved, one motor connector crimp had worked itself out of the connector.

Ha! Had that happen on my RatRig V-Minion. Now I'm super anal careful when it comes to setting pins in JST connectors. Had too many of them pop out of the socket on insertion.

[TitusADuxass]

10 minutes ago, Penatr8tor said:

Nope, but it never hurts to blow a little air on it.

Agreed.

[claudermilk]

I still have no more than the skirt fans in my Trident. The Octopus MCU is always the cooler of the controller chips.

[Penatr8tor]

1 hour ago, claudermilk said:

I still have no more than the skirt fans in my Trident. The Octopus MCU is always the cooler of the controller chips.

My RatRig V-Core has an Octopus 1.1 and I have 2 big 120mm fans over it and the Pi. In RatOS you can configure your printer for normal mode or rapid mode. In rapid mode the TMC2209 driver chips get so hot that I had to write a fan macro to ramp up both fans to 11 to keep the printer from erroring out before it got done homing. Of course, you can't monitor the driver chips and while the processor is barely warming up and you're thinking everything is good... you can fry bacon on the driver chips. FWIW, I don't run rapid mode anymore so it's not an issue but, you can definitely run the steppers fast enough that you need some cooling.

[SamppaD]

5 hours ago, TitusADuxass said:

So the new Octopus board is not playing nicely.

It gives me the following error - 

Unable to read tmc uart 'stepper_z' register IFCNTUnable to read tmc uart 'stepper_gz' register IFCNT

I've checked that the jumpers are in place for the motor power, they are all on the left 2 pins.

When I got the board, all the jumpers where installed for a SPI mode setup. In my experience the boards normally don't have any of the jumpers installed.

I suspect that this board is "used" and has been returned. Discussion are going on with support at BTT/BIQU, but as always it takes time. You answer one set of questions and then they come back with more questions.

Just for SnGs, I put the M8P/CB2 board back in, everything worked as expected - which proves that the TMC2290s are working.

Hi. I just got my Octopus 723 board and that one came with jumpers already installed for 24V 2209 uart . It also had 5V jumper for probe and usb power jumper for flashing preinstalled?? The rest of jumpers and accessories was packed in original packaging. I was thinking what the hell? Purchased from official BTT store,stepper drivers came packed in to factory sealed plastic packaging. It looks like BTT is testing the boards? Lets see what is not working this time...

[SamppaD]

I was discussing this issue with BTT customer support a moment ago. Octopus boards are shipped from factory with jumpers already installed on the board.

User, as expected need to reconfigure board before use.

[SamppaD]

1 hour ago, Penatr8tor said:

My RatRig V-Core has an Octopus 1.1 and I have 2 big 120mm fans over it and the Pi. In RatOS you can configure your printer for normal mode or rapid mode. In rapid mode the TMC2209 driver chips get so hot that I had to write a fan macro to ramp up both fans to 11 to keep the printer from erroring out before it got done homing. Of course, you can't monitor the driver chips and while the processor is barely warming up and you're thinking everything is good... you can fry bacon on the driver chips. FWIW, I don't run rapid mode anymore so it's not an issue but, you can definitely run the steppers fast enough that you need some cooling.

Yes. TMC2209 will idle at 30C and rump temperature up during printing. My 429 octopus is at 29C when printing but TMC2209 are at 47-50C with electronic bay fans running at 95% I would say normal printing its fine but for fast printing extra fans are needed.

[mvdveer]

I only cool the boards that are running 48V - Mercury and VZBot. The others are like most cooled by the electronics bay fans. But I have 4 of those in the bay (Tridents and V2.4,s

[SamppaD]

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..

Edited November 2, 2025 by SamppaD